Relevant bibliographies by topics / Machine pistols

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Machine pistols'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Machine pistols.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Machine pistols"

1

Thomas, Zach. "Sex Pistols: Poison in the Machine." Rock Music Studies 5, no. 3 (September 2, 2018): 309–11. http://dx.doi.org/10.1080/19401159.2018.1519901.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Giverts, P. "HOMEMADE FIREARMS PRODUCED USING THE 3D PRINTING METHOD – THEIR CONSTRUCTION AND THE PECULIARITIES OF FORENSIC EXAMINATION." Criminalistics and Forensics, no. 65 (May 18, 2020): 381–92. http://dx.doi.org/10.33994/kndise.2020.65.37.

Full text
Abstract:
The development of a new technology of material processing known as 3D printing in 2013 lead to posting on the Internet blueprints of the first pistol made with the use this technology. The pistol got the name Liberator. Within the first two days after the post, the blueprints of this pistol were downloaded more than a hundred thousand times. The difference of this construction from other constructions is that all the parts, except the firing pin, are printed on the 3D printer. For manufacturing this type of pistols special equipment (which has become easily available lately) is needed, as well as the knowledge and skill to operate it. At the same time, no special knowledge about the development and manufacturing of firearms is necessary. Availability of ready blueprints (the programs for printing the elements in 3D printer) without the need to do manual or machine treatment, lead to the wide spread of this type of homemade firearms. The law enforcements of many countries have already got cases of illegal trafficking of homemade firearms made with the use of 3D printing technology. The article discusses the construction features of Liberator pistol, as well as the peculiarities of its forensic examination. Special attention is paid to the problem of reliability and durability of this type of pistols. The possibility of damage or destruction of the pistol construction during a shot was investigated. The influence of different parameters, such as the size of the pistol, the material of its elements, the caliber of the cartridge on the possible destruction of the pistol, was also discussed. The damages in the pistols, made of different polymers, were illustrated in this article by the results of investigations taken from a few foreign professional sources. The problem of establishing the fact of a shot, which had been made from pistol printed in 3D printer, before the evidence came for forensic examination, was discussed. The article deals with the problem of the influence of this shot on the possibility of determination of the constriction durability and with the question if the evidence meets the criteria of firearms. Possible defects in the examined evidences, which should be checked be the examiners before the experimental shot, were pointed out.
APA, Harvard, Vancouver, ISO, and other styles
3

Fraser, K. C. "Handguns: Semi‐automatic Pistols and Revolvers and Sub‐machine Guns97319James Marchington. Handguns: Semi‐automatic Pistols and Revolvers and Sub‐machine Guns. London: Brassey’s 1997. 126 pp, ISBN: 1 85753 163 9 £15.95 Brassey’s Modern Military Equipment Series." Reference Reviews 11, no. 5 (May 1997): 42–43. http://dx.doi.org/10.1108/rr.1997.11.5.42.319.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Ernst, Meike, Andrea Vacca, Monika Ivantysynova, and Georg Enevoldsen. "Tailoring the Bore Surfaces of Water Hydraulic Axial Piston Machines to Piston Tilt and Deformation." Energies 13, no. 22 (November 17, 2020): 5997. http://dx.doi.org/10.3390/en13225997.

Full text
Abstract:
A novel virtual prototyping algorithm has been developed to design one of the most critical lubricating interfaces in axial piston machines of the swash plate type—the piston–cylinder interface—for operation with water as the working fluid. Due to its low viscosity, the use of water as a lubricant can cause solid friction and wear in these machines at challenging operating conditions. The prototyping algorithm compensates for this by tailoring the shape of the bore surface that guides the motion of each piston in this type of positive displacement machine to conform with the piston surface, taking into account both the piston’s tilt and its deformation. Shaping these surfaces in this manner can render the interface more conducive to generating hydrodynamic pressure buildup that raises its load-carrying capacity. The present work first outlines the structure of the proposed algorithm, then presents a case study in which it is employed to design a bore surface shape for use with two prototypes, one virtual and one physical—both modified versions of a 444 cc commercial axial piston pump. Experimental testing of the physical prototype shows it to achieve a significantly higher maximum total efficiency than the stock unit.
APA, Harvard, Vancouver, ISO, and other styles
5

Wang, Gui Tang, and Mei Ling Yu. "Pistol Ring Gap Inspection under Free State Based on Machine Vision." Applied Mechanics and Materials 328 (June 2013): 198–202. http://dx.doi.org/10.4028/www.scientific.net/amm.328.198.

Full text
Abstract:
The traditional way is to put the ring into the standard ring gauge to inspect, but the process of this kind of method is complex, high cost and slow. The study has put forward a detection method based on machine vision technology for pistol ring under free state as the existing defects in inspecting ring gap. Pistol ring is imaged under free conditions. Edge detection technologies, sub-pixel and Gaussian filter, have been effectively adopted to extract the contour of pistol ring. Then perform curve fitting in section to work out the gap length of each segment when pistol is circle. From the experiment, methods in this study are pertinent to the number of the segments. Proper segments can ensure gap length can be rightly calculated out when meeting the required accuracy. Sub-pixel edge detection is proposed in the application of piston ring detection in this study, and it improved the previous algorithm toimprove the efficiency ,reduced the process complexity, saved the cost.
APA, Harvard, Vancouver, ISO, and other styles
6

Hu, Shu Lan. "On Piston Rod System Operation Analysis and Piston Structure Optimization Research." Applied Mechanics and Materials 513-517 (February 2014): 4147–51. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.4147.

Full text
Abstract:
The transmission components of internal combustion engine power are piston rod structure. The quality of the structure design has direct impact on the whole machine. Alternating thermal load and mechanical load are pistons, which are under the worst piston rod system working condition. This article performs operation analysis piston rod structure through the corresponding application of Pro/Mechanica and Pro/Mechanism, so that the stress and piston dangerous stress concentration location shall be determined based on piston structure optimization design. This way leads to quality improvement of piston rod structure design, leading to extended products service life, which has a particularly important role and significance.
APA, Harvard, Vancouver, ISO, and other styles
7

Shcherba, V. E., A. S. Tegzhanov, E. Y. Nosov, A. M. Paramonov, V. N. Blinov, and S. F. Khrapskii. "Comparative Analysis of Mass-Dimensional A Comparative Analysis of Mass-Dimensional Indicators of Crossheadless and Crosshead Piston Hybrid Energy Positive Displacement Machines." Proceedings of Higher Educational Institutions. Маchine Building, no. 9 (714) (September 2019): 88–95. http://dx.doi.org/10.18698/0536-1044-2019-9-88-95.

Full text
Abstract:
Currently, one of the main ways to improve the efficiency of piston compressors and volumetric pumps is to combine them into a single unit, called a piston hybrid energy machine. Recently, a new class of crossheadless piston hybrid energy positive displacement machines has appeared. In this work, a comparison of mass-dimensional indicators of experimental crosshead and crossheadless hybrid energy machines is performed. The analysis of the results shows that the crossheadless machine has significantly smaller masses of moving parts performing reciprocating motion (almost 3 times) and a smaller maximal overall size (almost 1.5 times) in comparison to the crosshead machine. The specific mass-dimensional indicators of the two machines are comparable.
APA, Harvard, Vancouver, ISO, and other styles
8

LaRocco, John, and Dong-Guk Paeng. "A functional analysis of two 3D-scanned antique pistols from New Zealand." Virtual Archaeology Review 11, no. 22 (January 28, 2020): 85. http://dx.doi.org/10.4995/var.2020.12676.

Full text
Abstract:
<p class="VARAbstract">Preservation of historical weapons requires continual and careful maintenance. Digital three-dimensional (3D) scanning can assist in preservation and analysis by generating a 3D computer model. New Zealand presents a special case for historical preservation, owing to the rapid import of European goods in a culture previously unexposed to metalworking. This, and the subsequent British colonization, led to upheaval and war. The most intense conflict between British and Maori forces was in the New Zealand Land Wars of the mid-19<sup>th</sup> century. The primary handheld firearms used in this period were black-powder muzzle-loaders, and the variety of armed factions involved in the war resulted in an eclectic range of weapons used. Two antique muzzle-loading pistols from this period were scanned and analyzed. Insights were gained into the history of double-barreled muzzle-loading pistols and transitional revolvers. The double-barreled pistol was determined to have been a flintlock pistol from a century prior to the Land Wars, later converted to percussion cap ignition. The transitional revolver was an intermediate step between the multi-barrel pepperbox pistol and the “true” revolver, but it remained in use throughout the Victorian era. Both types of firearms were effectively obsolete elsewhere in the world by the time of the Land Wars, but the conflict created a demand for a variety of weapons. While the pistols analyzed in this study are decommissioned and no longer in working order, the 3D models made from the samples afforded a unique glimpse into New Zealand’s history. The methodology detailed over the course of the study can be applied to other historical firearms in order to facilitate preservation, investigation, and experimentation.</p><p>Highlights:</p><ul><li><p>Preservation of historical machines requires continual maintenance, including replacement of worn or missing parts.</p></li><li><p>A combination of 3D scanning and digital models was used to analyze two antique pistols from New Zealand: a converted flintlock pistol and a transitional revolver.</p></li><li><p>The method of making and analyzing digital models detailed in this study offers a way to facilitate historical preservation, experimental archaeology, and functional analysis.</p></li></ul>
APA, Harvard, Vancouver, ISO, and other styles
9

Aliemeke, B. N. G., and M. H. Oladeinde. "Design of 0.67hp gasoline generator pistons." Nigerian Journal of Technology 39, no. 3 (September 16, 2020): 839–43. http://dx.doi.org/10.4314/njt.v39i3.25.

Full text
Abstract:
Piston is an important internal combustion engine component that works with other engine components to withstand severe stresses and high temperature that are generated in the combustion chambers. Pistons are subjected to a very high mechanical and thermal load which results from extreme pressure cycles and huge forces of inertia caused by extremely high acceleration during the reciprocating motion. The 0.67hp generator piston designed had the values of parameters to be: 51.00mm Piston stroke; 48.85mm piston bore diameter; 3.66kw brake power; 4.87kw indicated power; 11.63Nm engine torque; 3.22mm piston thickness and 9.44cm3 clearance volume. The piston parameter values calculated were found to be in accordance with the recommended range of values in the design and operating data for internal combustion engines. Keywords: Piston design, machine parameters and internal combustion engines.
APA, Harvard, Vancouver, ISO, and other styles
10

Shcherba, V. E., Nosov E.Y., A. S. Tegzhanov, A. M. Paramonov, V. N. Blinov, and V. I. Surikov. "An Experimental Study of a Crossheadless Piston Hybrid Power Positive Displacement Machine with Intensive Cooling of the Compressed Gas." Proceedings of Higher Educational Institutions. Маchine Building, no. 10 (715) (October 2019): 78–85. http://dx.doi.org/10.18698/0536-1044-2019-10-78-85.

Full text
Abstract:
Piston hybrid power machines combining the functions of a compressor and a pump in one unit have become widespread, with a new class of machines that do not have a crosshead currently under development. A prototype of such a machine was designed and manufactured based on the new concept of a crossheadless piston hybrid power machine. A plan for conducting a series of experimental studies was developed. The experimental studies confirmed the feasibility of the prototype in the entire range of independent operating parameters (discharge pressure in the compressor section, discharge pressure in the pump section, the number of revolutions of the crankshaft). The effect of operating parameters on the instantaneous and integral characteristics of the compressor and the pump sections of the crossheadless piston hybrid power machine was also assessed through the experimental studies.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Machine pistols"

1

Salquebre, Quentin. "Développement d'un modèle de prédimensionnement d'un ensemble alternateur - machine Stirling à pistons libres." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT015/document.

Full text
Abstract:
Le moteur Stirling a été développé il y’a 200 ans. Cependant son développement n’a jamais connu un grand essor. Le contexte énergétique actuel a relancé l’intérêt porté à ces machines. En effet la possibilité de le faire fonctionner à partir de n’importe quelle source de chaleur externe lui permet d’être associé à des sources d’énergie renouvelable comme l’énergie solaire. Au-delà des avantages écologiques, le développement par W. Beale à la fin des années 1960 d’un moteur Stirling à pistons libres (ou FPSE pour Free Piston Stirling Engine) a ajouté de nouveaux intérêts à un tel moteur. Cette nouvelle architecture permet au moteur de fonctionner sans système d’entrainement des pistons. Dans de telles machines, le mouvement des pistons n’est plus déterminé par la géométrie du système d’entrainement. Ces derniers sont mis en mouvement par les forces de pressions occurrents à l’intérieur du moteur. La dynamique des pistons et la thermodynamique du système sont alors couplées, rendant plus complexe la modélisation complète du système.Cette thèse présente une nouvelle technique de modélisation des machines Stirling à pistons libres, intitulée LHA5V pour Linear Harmonic Analysis 5 Volumes, permettant de coupler la thermodynamique du système et la réponse mécanique des pistons libres. Celle-ci repose alors sur la décomposition du moteur Stirling en cinq sous systèmes ouverts : deux espaces à volume variables, deux échangeurs de chaleur et le régénérateur. Nous supposons que les variables d’état varient périodiquement et le modèle détermine comment celles-ci varient en valeur moyenne, en amplitude et en phase afin de satisfaire les équations de conservation de la masse et de l’énergie. L’aspect innovant du modèle thermique repose sur la prise en compte implicite des pertes inhérentes au fonctionnement. Celles-ci ont en effet un impact direct sur le mouvement des pistons. Par ailleurs cette thèse présente également un modèle de génératrice électrique linéaire pouvant être couplé à la partie thermique. Le modèle électrique repose sur un calcul analytique de la force de poussée du stator sur la partie mobile. Le calcul des flux et du niveau d’induction dans le circuit magnétique est effectué à partir d’un réseau de perméances judicieusement paramétré.Que ce soit pour la modélisation thermique ou la modélisation électrique, chacun des modèles a été conçu pour avoir un temps de calcul faible, tout en restant le plus précis possible sur la prédiction des performances. Ceux-ci ont à chaque fois été confrontés à des données expérimentales, ou à d’autres techniques de modélisation plus fines de façon concluante
Though the Stirling engine was invented two centuries ago, it has never really grown to a fully marketable level. The current energy context has renewed the interest in this engine. Their ability to work with any external source of heat allow them to be associated with renewable energy such as solar energy. Beyond its ecological benefits, the invention of the free piston Stirling engine by W. Beale at the end of the 1960’s further increased the interest in Stirling engines. This novel structure allows the engine to operate without mechanical interface between pistons, which are driven entirely by the gas or other spring forces. In such engines, the pistons kinematics and the system thermodynamics are intimately coupled, thus increasing the complexity of the complete system computer modelling.This PhD presents an innovative technique to model a free piston Stirling engine that takes into account the coupling between the system thermodynamics and the mechanical response of the free pistons. This technique has been named LHA5V standing for Linear Harmonic Analysis 5 Volumes. It consists in splitting the engine in five open sub-systems: the compression and expansion spaces, the heater, the cooler and the regenerator. We hypothesize that the state variables are periodic, and the model then determines the variations of their mean, amplitude and phase values in order to satisfy the mass and energy conservation equations. This PhD also presents a model for a linear electric alternator, which can be coupled to the power piston. This electrical model is based on an analytical calculation of the thrust between the stator and the magnets. Magnetic flux and induction in the iron are determined by a carefully tuned reluctance network.Both thermal and electrical models have been designed to optimize both computing time and accuracy. The models generated have systematically been compared to experimental data or finite element analysis, with satisfactory results
APA, Harvard, Vancouver, ISO, and other styles
2

Löfstrand, Grip Rasmus. "A mechanical model of an axial piston machine." Licentiate thesis, KTH, Machine Design (Div.), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10948.

Full text
Abstract:

A mechanical model of an axial piston-type machine with a so-called wobble plate and Z-shaft mechanism is presented. The overall aim is to design and construct an oil-free piston expander demonstrator as a first step to realizing an advanced and compact small-scale steam engine system. The benefits of a small steam engine are negligible NOx emissions (due to continuous, low-temperature combustion), no gearbox needed, fuel flexibility (e.g., can run on biofuel and solar), high part-load efficiency, and low noise. Piston expanders, compared with turbines or clearance-sealed rotary displacement machines, have higher mechanical losses but lower leakage losses, much better part-load efficiency, and for many applications a more favourable (i.e., lower) speed. A piston expander is thus feasible for directly propelling small systems in the vehicular power range. An axial piston machine with minimized contact pressures and sliding velocities, and with properly selected construction materials for steam/water lubrication, should enable completely oil-free operation. An oil-free piston machine also has potential for other applications, for example, as a refrigerant (e.g., CO2) expander in a low-temperature Rankine cycle or as a refrigerant compressor.

 

An analytical rigid-body kinematics and inverse dynamics model of the machine is presented. The kinematical analysis generates the resulting motion of the integral parts of the machine, fully parameterized. Inverse dynamics is applied when the system motion is completely known, and the method yields required external and internal forces and torques. The analytical model made use of the “Sophia” plug-in developed by Lesser for the simple derivation of rotational matrices relating different coordinate systems and for vector differentiation. Numerical solutions were computed in MATLAB. The results indicate a large load bearing in the conical contact surface between the mechanism’s wobble plate and engine block. The lateral force between piston and cylinder is small compared with that of a comparable machine with a conventional crank mechanism.

 

This study aims to predict contact loads and sliding velocities in the component interfaces. Such data are needed for bearing and component dimensioning and for selecting materials and coatings. Predicted contact loads together with contact geometries can also be used as input for tribological rig testing. Results from the model have been used to dimension the integral parts, bearings and materials of a physical demonstrator of the super-critical steam expander application as well as in component design and concept studies.

APA, Harvard, Vancouver, ISO, and other styles
3

Löfstrand, Grip Rasmus. "A mechanical model of an axial piston machine." Stockholm : Skolan för industirell teknik och management, Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10948.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Wondergem, Ashley, and Monika Ivantysynova. "The Impact of Micro-Surface Shaping of the Piston on the Piston/Cylinder Interface of an Axial Piston Machine." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200169.

Full text
Abstract:
Axial piston machines of the swashplate type are commonly used in various hydraulic systems and with recent developments in displacement control, it is essential to maximize their efficiency further reducing operation costs as well as improving performance and reliability. This paper reports findings of a research study conducted for the piston-cylinder interface utilizing a novel fluid structure thermal interaction model considering solid body deformation due to thermal and pressure effects in order to accurately predict the transient fluid film within the gap. A large reduction in energy dissipation is possible due to reduced clearances allowable due to the surface shaping of the piston resulting in a reduction in leakage. From this study, it is shown that surface shaping of the piston in combination with a reduced clearance is not only beneficial by improving the efficiency of a machine, but also increases the reliability and the performance of the machine as the load support is enhanced.
APA, Harvard, Vancouver, ISO, and other styles
5

Nunio, François. "Contribution à l'étude du comportement dynamique de compresseur à pistons alternatifs." Lille 1, 1993. http://www.theses.fr/1993LIL10100.

Full text
Abstract:
Un modèle de calcul des sollicitations appliquées aux éléments du mécanisme d'un compresseur à pistons alternatifs est construit. La chaîne cinématique est modélisée dans son ensemble (moteur, accouplement et compresseur) et son comportement est abordé de façon dynamique, sans linéarisation des équations du mouvement ; la géométrie des éléments n'est pas simplifiée. La formulation dynamique du problème permet de quantifier les variations des sollicitations induites par le comportement dynamique en torsion de la ligne d'arbre, tant lors des phases de fonctionnement stationnaire (irrégularité cyclique) qu'instationnaire (démarrage, arrêt. . . ). La prise en compte des frottements secs et visqueux permet de dresser le bilan énergétique des pertes mécaniques dans le compresseur. Une analyse de sensibilité aux paramètres du calcul a permis de cerner les limites du modèle et les résultats obtenus par ce calcul ont été validés lors d'une campagne de mesures.
APA, Harvard, Vancouver, ISO, and other styles
6

Bhari, Anil. "A Rapid Compression Machine with the Novel Concept of Crevice Containment." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1294677850.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kayani, Omer Khaleeq, and Muhammad Sohaib. "Generic Simulation Model Development of Hydraulic Axial Piston Machines." Thesis, Linköpings universitet, Fluida och mekatroniska system, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-76575.

Full text
Abstract:
This master thesis presents a novel methodology for the  development of simulation models  for hydraulic pumps and motors. In this work, a generic simulation model capable of representing multiple axial piston machines is presented, implemented and validated. Validation of the developed generic simulation model is done by comparing the results from the simulation model with experimental measurements. The development of the generic model is done using AMESim. Today simulation models are an integral part of any development process concerning hydraulic machines. An improved methodology for developing these simulation models will affect both the development cost and time in a positive manner. Traditionally, specific simulation models dedicated to a certain pump or motor are created. This implies that a complete rethinking of the model structure has to be done when modeling a new pump or motor. Therefore when dealing with a large number of pumps and motors, this traditional way of model development could lead to large development time and cost. This thesis work presents a unique way of simulation model development where a single model could represent multiple pumps and motors resulting in lower development time and cost. An automated routine for simulation model creation is developed and implemented. This routine uses the generic simulation model as a template to automatically create simulation models requested by the user. For this purpose a user interface has been created through the use of Visual Basic scripting. This interface communicates with the generic simulation model allowing the user to either change it parametrically or completely transform it into another pump or motor. To determine the level of accuracy offered by the generic simulation model, simulation results are compared with experimental data. Moreover, an optimization routine to automatically fine tune the simulation model is also presented.
APA, Harvard, Vancouver, ISO, and other styles
8

Schleihs, Christian [Verfasser]. "Acoustic Design of Hydraulic Axial Piston Swashplate Machines / Christian Schleihs." Aachen : Shaker, 2017. http://d-nb.info/1138177202/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Ferreira, Laércio. "Projeto e construção de uma bomba de pistões axiais swashplate /." Guaratinguetá : [s.n.], 2004. http://hdl.handle.net/11449/97124.

Full text
Abstract:
Orientador: João Zangrandi Filho
Banca: Fernando de Azevedo Silva
Banca: Messias Borges Silva
Resumo: A bomba de pistões axiais tipo swashplate é uma máquina relativamente nova nas aplicações industriais. Uma pesquisa para se obter informações de funcionamento dessa máquina revelou que pouco existe na literatura especializada, a menos de um trabalho de tese de doutorado apresentado na UNESP em 1993. Este trabalho desenvolve procedimento para o projeto de máquinas de pistões axiais e segue uma metodologia para se obter o desenho de conjunto, os detalhes, os ajustes e montagem desta máquina. Em seguida foi feito um estudo para proceder às etapas de usinagem desta máquina, utilizando máquinas convencionais e máquinas de controle numérico. O trabalho visa também fazer com que esta máquina funcione bombeando óleo. O objetivo é garantir com que o mecanismo funcione perfeitamente e não a pressões elevadas.
Abstract: The swashplate piston pump is relatively new in industrial applications. A literature research for obtaining the operation principles of such machines, revealed that little is published in the specialized literature but a work presented as a thesis research at UNESP in 1993. This work presents a procedure for the design of axial piston machines and a methodology in order for one to obtain the cutaway view, the detailed drawings, the fit process and how to assemble this machine. After a long discussion, a detailed process was accomplished in order to develop the machining phases, making use of conventional machines and CNC ones. The present work also declare how this machine will be running along the tests: a way that only the pumping action is required. At this point only the well running and not the pressure value is important.
Mestre
APA, Harvard, Vancouver, ISO, and other styles
10

Carvalho, Robson Flores de [UNESP]. "Projeto e construção de um motor de pistões axiais de vazão fixa." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/97112.

Full text
Abstract:
Made available in DSpace on 2014-06-11T19:28:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-12Bitstream added on 2014-06-13T20:37:39Z : No. of bitstreams: 1 carvalho_rf_me_guara.pdf: 1480284 bytes, checksum: c7e8cc63c757c4ed4fc23810d1bdaa7c (MD5)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Projetar e construir máquinas de pistões axiais são atividades desenvolvidas por poucas empresas no mundo. No Brasil, não se conhece nenhum projeto sobre este tipo de máquina até agora, isto é, um projeto totalmente nacional, apenas são manufaturadas utilizando mão de obra brasileira. Este tipo de máquina tem grande aplicação na área industrial, móbile e aeronáutica. Desenvolver este trabalho é o grande desafio, tendo em vista conquistar tecnologia sobre este produto e, conseqüentemente, livrar-se da dependência tecnológica de outros países. Sendo assim este trabalho procura ir mais longe, pois pretende substituir diretamente os motores comerciais em funcionamento numa etapa muito próxima e subseqüente. Calcular e desenhar uma máquina não são etapas suficientes para que ela funcione e ocupe lugar no mercado. Portanto, um estudo minucioso sobre como cada peça deveria ser usinada foi elaborado, e posteriormente discutido com operadores de máquinas. Esta etapa precisa ser considerada tão importante quanto necessária. Este trabalho além de apresentar um histórico da evolução da hidrostática, também mostra com figuras o funcionamento dos motores de pistões axiais. Um roteiro de cálculos relata como as dimensões da máquina foram determinadas, com a finalidade de se obter o desenho de conjunto.
Designing and manufacturing axial piston Swashplate machines are activities that few companies have developed around the world. So far, nothing has been known related to this kind of machine when the focus is on a true national design. In addition, Swashplate machines are fully utilized in industrial, mobile and aeronautical area. Developing this work is the challenge, looking forward to conquer technology in order to manufacture such a product and, consequently, be free from paying royalties to other countries. In this way, the present work goes beyond when one intends to directly substitute those commercial machines in a well next time, it means, just after this work has finished. Calculating and drawing are not sufficient steps to have a machine running. So, a well detailed study was set up in order to know how the parts would be machined and treating and discussing with machine operators was necessary. One should remind that this is a step as important as well necessary. This work presents the history of hydrostatic machines and an explanation relating how the Swashplate motor works. Some calculations are also presented in order to have the assembled view drawing of this machine accomplished.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Machine pistols"

1

Wilson, R. K. Textbook of automatic pistols. Birmingham, Ala: Palladium Press, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Handguns & sub-machine guns: Semi-automatic pistols & revolvers. London: Brassey's, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kalashnikov: Machine pistols, assault rifles, and machine-guns, 1945 to the present. London: Greenhill Books, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Dougherty, Martin J. Small arms: From 1860 to the present day. London: Amber Books, 2014.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Sytin, L. E. Vse ob ognestrelʹnom oruzhii. Sankt Peterburg: Poligon, 2012.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Dougherty, Martin J. Small arms. New York: Rosen Pub., 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Dk Publishing. Gun: A visual history. New York: DK Pub., 2012.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

The complete world encyclopedia of guns: Pistols, rifles, revolvers, machine and submachine guns through history in 1100 photographs. London: Hermes House, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Kovscek, P. D. Testing of a diesel-powered impact cutting head for hard-rock mining. Washington, DC: U.S. Dept. of the Interior, Bureau of Mines, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kovscek, P. D. Testing of a diesel-powered impact cutting head for hard-rock mining. Washington, D.C: U.S. Dept. of the Interior, Bureau of Mines, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Machine pistols"

1

Piacenti, Vince, Helmut Tschoeke, and Jon H. Van Gerpen. "Piston Machines." In Springer Handbook of Mechanical Engineering, 879–945. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-30738-9_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Tschöke, Helmut, Vince Piacenti, Brent Keppy, Aneel A. Singh, Steven D. White, Justin Kern, and Jon H. van Gerpen. "Piston Machines." In Springer Handbook of Mechanical Engineering, 683–751. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-47035-7_17.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Wilhelm, E., and J. Wellnitz. "RPM – Rotary Piston Machines: New Class of Innovative Machines." In Sustainable Automotive Technologies 2011, 67–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19053-7_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

San Andrés, Luis, and Bonjin Koo. "Effect of Lubricant Supply Pressure on SFD Performance: Ends Sealed with O-rings and Piston Rings." In Mechanisms and Machine Science, 359–71. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99262-4_26.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Ozah, Rupshree, and Muralidhar Manapuram. "Development of Methods for Machine Intelligence Quotient Measurement for Piston Casting by Die Casting Machines: A Study." In Lecture Notes on Multidisciplinary Industrial Engineering, 425–37. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9072-3_37.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Hu, Jinwei, Yuan Lan, Xianghui Zeng, Jiahai Huang, Bing Wu, Liwei Yao, and Jinhong Wei. "Fault Diagnosis on Sliding Shoe Wear of Axial Piston Pump Based on Extreme Learning Machine." In Proceedings in Adaptation, Learning and Optimization, 114–22. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01520-6_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Gotter, A., and B. Schapiro. "Analysis of Potential Increases in Energy Efficiency for Piston Combustion Machines with Unconventional Geometry." In Sustainable Automotive Technologies 2010, 223–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-10798-6_28.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Stoican (Prisecaru), M. M., N. Băran, D. Besnea, and A. Costache. "The Influence of the Rotating Piston Shape on the Sealing Between Two Profiled Rotors of a Rotating Machine that Transports Fluids." In Proceedings of the International Conference of Mechatronics and Cyber- MixMechatronics - 2020, 1–11. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53973-3_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

"piston machine." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 1006. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_162058.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

"piston-type machine." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 1006. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_162066.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Machine pistols"

1

Achten, Peter A. J. "Power Density of the Floating Cup Axial Piston Principle." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59006.

Full text
Abstract:
The floating cup principle is a new concept for hydrostatic pumps, motors and transformers. It features a large number of pistons, which enables a strong reduction of the pressure pulsations and fluid borne noise. The pistons are arranged in a double ring, back-to-back configuration, and are locked onto the rotor. Each piston has a separate, cuplike cylinder, which is floating on a rotating barrel plate. This article will discuss the consequences of the floating cup design on the power density of pumps and motors. For current axial piston units the trend is towards larger tilt angles of the barrel. In slipper type machines, the tilt angles can be as large as 21°, whereas in bent axis machines the tilt angle can even be increased to 45°. For a 24 piston floating cup machine, the tilt angle of each barrel is however limited to about 12°. The object of the article is to prove that the reduced tilt angle does not need to have a detrimental effect on the power density of the hydrostatic machine. After giving a brief description of the floating cup principle, the article will focus on the design aspects that limit the barrel tilt angle. After this, the main parameters that govern the power density are discussed. A comparison with a slipper type pump is made.
APA, Harvard, Vancouver, ISO, and other styles
2

Ericson, Liselott, and Jonas Forssell. "A Novel Axial Piston Pump/Motor Principle With Floating Pistons: Design and Testing." In BATH/ASME 2018 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/fpmc2018-8937.

Full text
Abstract:
This paper presents the first prototype of a novel axial piston pump/motor of slipper type. The pistons are floating in the cylinders and hence the name floating piston pump. The novel pump design fills a gap in the traditional pump design. The pump is made to fit the automobile requirements to use fluid power in a more prominent manner. One of the expected benefits of this design is its simplicity and therefore the machine does not require high manufacturing capabilities. The production cost is expected to be low. The machine is designed with high number of pistons, which leads to a pump/motor with low noise level. The displacement angle is small, 8 degrees, which leads to low piston speeds with its benefits. The main challenge in the design is the piston seal configuration. The seals will both, deform (ovality) and move in a circle relative to the pistons. The paper discusses design considerations and proposes a design. The efficiency measurement of the first prototype is in level of a series produced slipper type machine at its sweet spot.
APA, Harvard, Vancouver, ISO, and other styles
3

Landberg, Magnus, Martin Hochwallner, and Petter Krus. "Novel Linear Hydraulic Actuator." In ASME/BATH 2015 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/fpmc2015-9604.

Full text
Abstract:
In the area of linear motion, infinite stroke only is provided by electric actuators today, until now there has been no hydraulic alternative. The novel linear hydraulic actuator consists of two double acting cylinders with a common piston rod. The working principle of this actuator for short movements is that at least one piston is connected to the piston rod and the actuator works like an ordinary hydraulic double acting cylinder. For longer movements one of the pistons is connected alternatively to the piston rod providing the drive. In this way the two pistons are moving the piston rod alternatingly in a kind of rope climbing motion. The critical element is the clamping mechanism which is an already known machine element but used in this new application. Advantages of this concept are as follows: The actuator is compact. Very long strokes and piston rods are allowed without side effects of common cylinders. This property is the origin of the name “infinite cylinder”. The cylinder has small chamber volumes and so high hydraulic stiffness and low capacitance. It has also potentially no external leakage. The cylinder can provide twice the rated force for short strokes. Applications for this feature are the plate opening stroke of injection molding machines, or presses with low work to travel stroke ratio, like a press brake. The paper includes a detailed description of the design and the working principle. One critical component is the clamping mechanism which temporarily connects the pistons to the piston rod. The clamping mechanism together with the piston represents a new kind of machine element in the mechanical engineering field. Here the focus will be on the function and the control strategy. With simulation the proposed control strategy and function will be presented and the performance analyzed. The simulation model is backed up by first results from experiments on the early prototype. The experiments carried out so far on the hydraulic clamping mechanism, which is the critical component in the system show very promising results that the required function can be achieved. Furthermore, the function of the whole cylinder has been simulated with good result. For the full paper results from a functioning prototype is also to be expected.
APA, Harvard, Vancouver, ISO, and other styles
4

Nordås, Sondre, Morten K. Ebbesen, and Torben O. Andersen. "Analysis of Requirements for Valve Accuracy and Repeatability in High Efficiency Digital Displacement Motors." In BATH/ASME 2018 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/fpmc2018-8908.

Full text
Abstract:
Traditional variable displacement piston machines achieve high efficiency when operating at high displacements, but struggle with poor efficiency at low displacements. The pistons are connected to high pressure and low pressure in conjunction with the output shaft position and the displacement is changed by changing the piston stroke, resulting in almost constant friction, leakage, and compressibility losses independent of displacement. In digital displacement machines, the rotary valve is replaced by two fast switching on/off valves connected to every cylinder. By controlling the fast switching on/off valves, the cylinders can be controlled individually and friction, leakage and compressibility losses can be minimized resulting in high efficiency even at low displacements. Previous studies have shown that high efficiency digital displacement machines require fast switching valves with high flow capacity and optimal valve timing strategy. When the digital displacement motor is to start, stop or be controlled at low speeds, the on/off valves must be able to open against high pressure difference. When opening the valves actively, the valve timing has to be conducted properly to minimize valve throttling losses and flow and pressure peaks. First, this paper shortly describes a previously developed method to estimate valve characteristics like transition time and flow capacity for a digital displacement machine. Then the paper presents a novel method of describing the required valve accuracy and repeatability to keep the valve throttling losses low and machine efficiency high.
APA, Harvard, Vancouver, ISO, and other styles
5

Ericson, Liselott, Andreas Johansson, and Jan-Ove Palmberg. "Noise Reduction by Means of Non-Uniform Placement of Pistons in a Fluid Power Machine." In ASME 2009 Dynamic Systems and Control Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/dscc2009-2645.

Full text
Abstract:
In conventional machines, the pulsations are periodic and originate from the uniform placement of a given number of pistons. This paper discusses the possibilities to introduce nonuniform placement of the pistons. The pulsations’ periodicity is thus changed, which can have a major impact on the noise level and how the noise is experienced. A number of approaches are presented, evaluated and ranked and the usefulness of the modifications is assessed. This study employs a transfer function methodology to map simulated internal pump dynamics, such as piston forces and bending moments, to audible noise. Using these transfer functions, it is possible for instance to predict how changed valve plate timing affects simulated piston forces and bending moments and in turn how this will affect audible noise.
APA, Harvard, Vancouver, ISO, and other styles
6

Wondergem, Ashley M., and Monika Ivantysynova. "The Impact of Micro-Surface Shaping on the Piston/Cylinder Interface of Swash Plate Type Machines." In ASME/BATH 2015 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/fpmc2015-9610.

Full text
Abstract:
With the wide use of axial piston machines of the swashplate type in industry, it is essential to maximize the overall efficiency of the machines. Focusing on the piston-cylinder interface, as it performs as a hydrodynamic bearing simultaneously fulfilling a sealing function, the overall machine can be improved by reducing the power losses due to viscous friction and leakage flow of this interface. This paper presents a research study in regards to altering the geometry of the piston through micro-surface shaping influencing the generation of the fluid film between the piston and the cylinder. This investigation utilizes a novel fully coupled fluid structure interaction model considering both thermal and elastic deformations of the solid bodies to predict the phenomena occurring within the fluid gap. Encompassed in this simulation study is a diversity of piston micro-surface shapes and a wide range of machine operating conditions. The designs presented include an axial sine wave, a flat, cylindrical design with tapered ends, a barreled shape, a combination of the axial sine wave and barrel, along with a circumferential sine wave. High pressure operating conditions in pumping mode as well as common operating conditions in both pumping and motoring mode are considered for the various designs. The results demonstrate up to a 30% reduction in energy dissipation from a standard piston-cylinder interface at higher pressure operating conditions (over 15% reduction considering all three interfaces of the machine) with the addition of a barrel surface shape while a 25% reduction (over 5% overall) is achievable at lower operating pressures in pumping mode with a waved barrel surface profile. As for motoring mode a 30% reduction (around 10% overall) is possible with the introduction of a waved barrel surface profile on the piston. It will also be shown, that not only are these reductions possible though microsurface shaping of the piston, but the reliability of the machine is also improved by reducing run-in wear all while maintaining a cost-effective, manufacturable design.
APA, Harvard, Vancouver, ISO, and other styles
7

Silva, H. L. K., S. D. Uthuranga, B. Shiyamala, W. C. M. Kumarasiri, H. B. Walisundara, and G. T. I. Karunarathne. "A Trainer System for Air Rifle/Pistol Shooting." In 2009 Second International Conference on Machine Vision. IEEE, 2009. http://dx.doi.org/10.1109/icmv.2009.74.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Ernst, Meike H., and Monika Ivantysynova. "Cylinder Bore Micro-Surface Shaping for High Pressure Axial Piston Machine Operation Using Water as Hydraulic Fluid." In ASME/BATH 2017 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fpmc2017-4285.

Full text
Abstract:
Water as a working fluid in hydraulic systems: the benefits of this particular hydraulic fluid are both numerous and consequential, but its implementation remains nontrivial for certain key applications. One of these key applications is the axial piston machine of swashplate type, which counts among its selling points efficiency, the possibility of variable displacement, and the ability to function in high-pressure systems [1]. Water as a working fluid tends to mar that last point with its extremely low viscosity — and the high leakages and low load support that stand as effects of that fluid property in the context of tribological interfaces. However, water’s environmentally friendly, fire resistant nature is coupled with a high thermal conductivity and high heat capacity favorable for keeping hydraulic systems cool, as well as a high bulk modulus that cuts slack in the exact execution of machine motions [2]. That makes it worth implementing in hydraulic systems, even in the face of the aforementioned troubles. This paper investigates the effects of a surface shape that can be applied to the cylinder bores of axial piston machines with the goal of improving load support while keeping down leakage in the critical piston cylinder tribological interface of axial piston machines operating at high pressures with water as their hydraulic fluid.
APA, Harvard, Vancouver, ISO, and other styles
9

Ivantysynova, Monika, Jo¨rg Grabbel, and Jean-Claude Ossyra. "Prediction of Swash Plate Moment Using the Simulation Tool CASPAR." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-39322.

Full text
Abstract:
The paper presents a new method of prediction of the swash plate moment based on a complex simulation model of the rotating group of swash plate axial piston machines. Due to further important demands within the design of the next generation of displacement machines – the reduction of noise and an increase of efficiency – the optimization of pump and motor control becomes really difficult. The application of the computer aided design tool CASPAR, a simulation tool developed at the Technical University of Hamburg-Harburg for the design and optimization of swash plate axial piston machines, allows the calculation of swash plate moments dependent on time, design and operating parameters of the machine. Especially the valve plate design affects the generated swash plate moment. The paper presents results of a simulation study into the influence of swash plate moments on the valve plate design. The dependency on the instantaneous pressure behaviour in the displacement chamber is explained. The simulation results were compared with experimental results obtained by measurements of the instantaneous pressure behaviour in the displacement chamber for various valve plate designs.
APA, Harvard, Vancouver, ISO, and other styles
10

Mehta, Viral S., and Noah D. Manring. "The Theoretical Frequency Response of an Over-Center, Pressure-Controlled, Axial Piston Pump." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-37391.

Full text
Abstract:
Axial piston pumps are ubiquitous in the hydraulic systems employed on various off-highway machines such as hydraulic excavators or wheel-loaders. These pumps exhibit a fairly slow response to the commanded input resulting in a slow response of the work tool (implement or transmission) as well, which is undesirable to machine operators and also slows down the machine’s productivity. Hence it is very important to understand the factors affecting the dynamic pump response. Much of the earlier work aims at understanding the steady state behavior of the pump control system using linear transfer function analysis. A closed-form solution for the dynamic frequency response has not been reported in previous research. This work presents the analysis of a variable displacement pump with an adjustable swash-plate for the purposes of identifying parameters that contribute to the response characteristics of the pump. The full model of the pump involves a seventh order model including a large number of non-linear terms. Hence a reduced order model has also been derived for calculating the frequency response of the pump in the closed form and it is shown that the design parameters that impact the frequency response most heavily are the actuator area, the swash-plate moment arm, and the flow gain of the four-way valve. As it turns out, an increased frequency response of the pump may be most readily achieved by increasing the charge pressure which in turn reduces the required actuator area and increases the flow gain of the valve.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Machine pistols' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography