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Relevant bibliographies by topics / Gear calculation

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Academic literature on the topic 'Gear calculation'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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Journal articles on the topic "Gear calculation"

1

Li, Xue Yi, Chao Chao Li, Bin Bing Huang, and San Shuai Li. "Contact Fatigue Analysis of Mine Helical Cylindrical Gear Based on ANSYS Workbench." Applied Mechanics and Materials 246-247 (December 2012): 12–16. http://dx.doi.org/10.4028/www.scientific.net/amm.246-247.12.

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A general method for calculating contact fatigue strength of Mine helical cylindrical gear was studied in this paper. Both the Solid model and finite element model were created in ANSYS. Based on the fatigue analysis module of the ANSYS Workbench, The contact fatigue strengths of the helical cylindrical gear pair were calculated, and corresponding contact fatigue lives and safety factors of two gears in any meshing position were obtained and shown in contour map. A simulation calculation for a pair of mine helical cylindrical gears was carried out. Simulation results show that calculation of the contact fatigue strength of helical cylindrical gear by this method is more scientific and reasonable than traditional empirical method.

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Zhanna V, Smirnova,. "Kinematic calculation of gear reduction gear." International Journal of Emerging Trends in Engineering Research 8, no. 6 (2020): 2422–25. http://dx.doi.org/10.30534/ijeter/2020/35862020.

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Wang, Nan, and Sheng Ze Wang. "Calculation of Bevel Noncircular Gears' Contact Ratio and Data Range." Advanced Materials Research 933 (May 2014): 439–43. http://dx.doi.org/10.4028/www.scientific.net/amr.933.439.

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The contact ratio of noncircular gears is variational, much more complicated than the contact ratio of the spur gear. Because the contact ratio of straight noncircular gear is always less than 2, its property of steady transmission is less than the bevel noncircular gear. Withal the thesis exports the calculation method of the bevel noncircular gears contact ratio and its variation range,and gives the relative computing examples .

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Khan, Muhammed Ali, and Andrew G. Starr. "Theoretical and Experimental Working Life Comparison for a Helical Gear under Linear Pitting Failure." Applied Mechanics and Materials 7-8 (August 2007): 95–100. http://dx.doi.org/10.4028/www.scientific.net/amm.7-8.95.

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For machine components like gears and bearings, working life calculation is one of the complex issues to deal with. This is because the mechanics of their operation is dependent on many parameters, like loading, friction and lubrication etc. Also the influence of these parameters on the component failure modes cannot be perfectly idealized. But in this regard, standards like AGMA (American Gear Manufacturers Association); ISO (International Standard Organization) and BS (British Standards) are quite useful on the basis of which theoretical working life for machine components under a specific failure mode can be predicted. In this paper with linear pitting failure mode assumptions, theoretical working life calculation has been made for a helical gear. BS-ISO 6336-2 standard is used for the gear theoretical life calculations. Furthermore, a wear debris analysis based experiment has been performed for the validation of theoretical calculation. A back to back gear testing rig has been used for the experimental validation. The experimental results show that the theoretical life calculation made on the basis of BS-ISO 6336-2 standards is fairly accurate.

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Wang, Cheng. "Influence of rotational speed and torque on meshing efficiency of double helical gear transmission system." Mechanics & Industry 22 (2021): 23. http://dx.doi.org/10.1051/meca/2021025.

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The accuracy of gear meshing efficiency model is the key to study the influence factors of gear meshing efficiency. Experiment is an effective method to verify the theory model. Therefore, the acquisition of experimental value of gear meshing efficiency is particularly important. Taken double helical gears as the research object, on the analysis of a large number of experimental data, the experimental value of gear meshing efficiency for double helical gears are calculated and then the influence of rotational speed and torque on meshing efficiency of double helical gears is studied. Firstly, the calculation method of transmission efficiency for experimental value in different layout of gear test-rigs with closed power flow is summarized. Secondly, the calculation method of meshing efficiency for experimental value in gear test-rig with closed power flow is introduced. Thirdly, the calculation method of load-dependent bearing loss is given. Finally, the experimental value of meshing efficiency for double helical gears is calculated and the influence of rotational speed and torque on meshing efficiency of double helical gears is obtained, which lays a theoretical foundation for the further improvement of the transmission efficiency of double helical gears.

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Zeng, Qingliang, Shoubo Jiang, Lirong Wan, and Xueyi Li. "Finite element modeling and analysis of planetary gear transmission based on transient meshing properties." International Journal of Modeling, Simulation, and Scientific Computing 06, no. 03 (2015): 1550035. http://dx.doi.org/10.1142/s179396231550035x.

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Planetary gear trains are widely applied in various transmission units. Whether strengths of all gears are accurately calculated or not can affect reliability of the entire system significantly. Strength calculation method for planetary gear trains usually follows the method for cylindrical gears, in which the worst meshing positions for both contact stress and bending stress cannot be determined precisely, and calculation results tend to be conservative. To overcome these shortcomings, a kinematics analysis for a planetary gear train is firstly performed, in which the influence of relative speed is investigated. Then the finite element strength analysis of a planetary gear train based on its transient meshing properties is carried out in ANSYS. Time–history curves of contact and bending stresses of sun gear, planetary gears and ring gear are respectively obtained. Also the accurate moment and its corresponding position of the maximum stress are precisely determined. Finally, calculation results of finite element method (FEM) and traditional method are compared in order to verify the effectiveness. Simulation and comparison show the stability of the proposed method in this paper. Researches in this paper establish the foundations for fatigue analysis and optimization for a planetary gear train.

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Timofeev, B. P., N. T. Dang, and M. H. Tran. "THE CALCULATION OF BACKLASH IN THE GEARS BY USING THE MONTE CARLO METHOD." Kontrol'. Diagnostika, no. 265 (July 2020): 42–47. http://dx.doi.org/10.14489/td.2020.07.pp.042-047.

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This paper is devoted to ensuring normal lateral clearance during the normalization of manufacturing errors of gear wheels and non-gear transmission elements. The task is complicated by the fact that GOST 1643–81 sets tolerances and maximum deviations relative to the working axles of the gears. The methods of calculating the lateral clearance of spur gears are considered. As the influencing factors on the lateral clearance, the thermal expansion of the link materials, the deviation of the interaxial distance of the wheels, the deviation of the engagement pitch, the radial run-out of the gear crowns, the error in the direction of the tooth, the parallelism and skew of the axles of the wheels are taken into account. The transmission accuracy parameters are read randomly. The results of calculation by the minimum-maximum method and the probabilistic method are compared. As a probabilistic calculation method, the Monte Carlo method is adopted. The input calculation parameters are taken equal to the maximum allowable values from GOST 1643–81, the parameters of the kinematic error of the wheels for calculation by the probabilistic method are considered distributed according to the equally probable and normal distribution laws.

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Timofeev, B. P., N. T. Dang, and M. H. Tran. "THE CALCULATION OF BACKLASH IN THE GEARS BY USING THE MONTE CARLO METHOD." Kontrol'. Diagnostika, no. 265 (July 2020): 42–47. http://dx.doi.org/10.14489/td.2020.07.pp.042-047.

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This paper is devoted to ensuring normal lateral clearance during the normalization of manufacturing errors of gear wheels and non-gear transmission elements. The task is complicated by the fact that GOST 1643–81 sets tolerances and maximum deviations relative to the working axles of the gears. The methods of calculating the lateral clearance of spur gears are considered. As the influencing factors on the lateral clearance, the thermal expansion of the link materials, the deviation of the interaxial distance of the wheels, the deviation of the engagement pitch, the radial run-out of the gear crowns, the error in the direction of the tooth, the parallelism and skew of the axles of the wheels are taken into account. The transmission accuracy parameters are read randomly. The results of calculation by the minimum-maximum method and the probabilistic method are compared. As a probabilistic calculation method, the Monte Carlo method is adopted. The input calculation parameters are taken equal to the maximum allowable values from GOST 1643–81, the parameters of the kinematic error of the wheels for calculation by the probabilistic method are considered distributed according to the equally probable and normal distribution laws.

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9

Wu, Shifeng, and H. S. Cheng. "Sliding Wear Calculation in Spur Gears." Journal of Tribology 115, no. 3 (1993): 493–500. http://dx.doi.org/10.1115/1.2921665.

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In gear applications where precipitous tooth failure mode such as scoring or scuffing has been avoided, “normal” wear becomes a life-determining factor. In this paper, sliding wear in spur gears, including the considerations of gear dynamics and rough-elastohydrodynamic lubrication, is analyzed. Formulas for equivalent wear rate and tooth wear profile along the line of action are derived. Results show that most materials are removed from both the addendum and dedendum tooth surfaces, and that the highest wear occurs at the beginning of an engagement. This high wear region corresponds to the root of the driving (pinion) teeth and the tip of the driven (gear) teeth. These analytical results correlate well with the practical evidences in AGMA documentation.

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Sabo, Ivan, Milan Kljain, Mirko Karakašić, and Željko Ivandić. "Design and calculation of planetary transmission with bevel gears." Tehnički glasnik 13, no. 2 (2019): 154–61. http://dx.doi.org/10.31803/tg-20190503183526.

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In this paper, the design and calculation of planetary transmission with bevel gears for road vehicles is presented. It must transfer power to the wheels with the possibility that wheels can rotate at different speeds. The basic calculation of transmission is performed for the drive machine, where an internal combustion engine is chosen, and for the driven machine, which is a car, all forces of resistance are calculated so that the transmission needs to be overcome to move the car. Based on the standard ISO 23509:2016 norm, the calculation of geometry is performed for the input gear pair and it is defined as a hypoid gear pair. For the planetary transmission, a calculation of gear module for bevel gears is first performed, and after that, the geometry is calculated. The calculation of the stress for root stress and Hertz contact pressure is performed for all bevel gears in transmission.

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Dissertations / Theses on the topic "Gear calculation"

1

Knapec, Tomáš. "Jeřábová kočka mostového jeřábu 32 t." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232169.

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This master’s thesis is the design development of crane trolley, which is used to manipulate with scrap material. The target of this thesis is to develop a technical report including calculations of running and lifting gear, strength calculation of frame of trolley and drawings containing assembly of crane trolley and assemblies of running and lifting gear. Desired parameters of this trolley are maximum load capacity 32 000 kg, lifting height of 11 m, working lifting speed up to 10 m/min and working running speed up to 50 m/min.

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Hoa, Pham Trong, and Nguyen Manh Hung. "Numerical calculation of dynamic stiffness and damping coefficients of oil lubrication film in internal gear motors and pumps." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71107.

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Oil lubrication film plays an important role in analysis of dynamic behavior of the internal gear motors and pumps. During operation, the oil film is considered as the spring and damping system. Therefore, calculation of the dynamic stiffness and damping coefficients is necessary to build the mathematical model for studying of dynamic problem. In order to calculate these coefficients, the dynamic pressure and perturbing pressure distribution must be determined firstly. In this paper, the infinitesimal perturbation method (IFP) is used to calculate the dynamic pressure distribution. Based on that the dynamic stiffness and damping coefficients can be computed. The calculation results point out that the dynamic stiffness and damping coefficients are much dependent on the eccentricity ratio.

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Chren, Tibor. "Návrh podvozku pro letoun Rapid 600." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229317.

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This diploma thesis deals with design of retractable landing gear for Rapid 600 aircraft. The main purpose of this thesis is to analyze different retraction options for front and main landing gear and resulting selection of suitable variants. The thesis is consequently concerned with design of selected options including proposal of automatic landing gear control system and specifying the features and characteristics of this system. In the thesis there is also included the analysis of critical flight conditions which could be detected by this system.

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Milichovský, Karel. "Pomocná jeřábová kočka 10000 kg." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399557.

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This master thesis deals with design of auxiliary crab trolley with load capacity 10t. Crab trolley moves along outdoor track of scrab yard. The target of this thesis is calculation and own design of travelling and lifting gear, strength calculation of frame and drawing documentation of a crane trolley assembly.

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Riccardo, Michele. "Calculation and tests for Shark CS-LSA type certification and preliminary design for CS-VLA certification." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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The purpose of this work was to calculate and to test different aircraft components according to the CS-LSA (Light Sport Aircraft) airworthiness for Shark s.r.o. Shark was designed to fit into European ultralight category and it was approved according to the UL-2 Czech Republic requirement of Light Aircraft Association and LTF-UL German requirement for “Sport Flying Vehicles”. In the design phase were considered also the ASTM standards for Light Sport Aircraft (LSA) valid in USA and accepted by European regulation CS-LSA. The maximum take-off weight will be increased from 472.5 kg up to 600 kg. Most of the tests needed for proof and approval were performed for calculated load according to ASTM standards, but some only up to limited load corresponding to maximum take-off weight equal to 472.5 kg. The goal of the project was to go through the Shark s.r.o documents and to check the compliancy with CS-LSA regulation. The center of gravity position was calculated starting from the prototype and new flight envelope was designed for calculation of the limit load afterwards. New tests were realized on the flaps, fixing points of the ballistic rescue system and on the landing gear. The tests were performed in Shark aero facility in Senica (Slovakia) under the supervision of Eng. Vladimír Pekár. The data collected during multiple tests were used for preliminary design of Mako - new aerobatic aircraft for pilot training.

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Reißmann, Jan. "Beitrag zur Entwicklung einer verbesserten Berechnungsmethode für die Zahnfußtragfähigkeit von Zylinderschneckengetrieben." Doctoral thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-203831.

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Schneckenradgetriebe sind aufgrund ihrer Verzahnungsgeometrie prädestiniert für Getriebeanwendungen mit diskontinuierlichem und schwingungsbehaftetem Betrieb. Bei hohen Momenten und geringen Drehzahlen stellt dabei die Zahnfußtragfähigkeit die primäre Auslegungsgrenze dar. Das Ziel der vorliegenden Arbeit lag in der Erhöhung der Genauigkeit der Berechnungsmethoden für die Zahnfußtragfähigkeit von Schneckenrädern, auch zur Steigerung des Volumennutzwertes dieser Getriebe. Hierzu wurden alle die Tragfähigkeit des Zahnfußes beeinflussenden Parameter durch eine Vielzahl von Experimenten und FE Simulationen untersucht. Dies schließt eine genaue Analyse der Geometrie von Schneckengetrieben, deren Fertigung und Einbausituation, die verwendeten Werkstoffe und deren Beanspruchung mit ein. Auf dieser Basis gelang neben der Entwicklung eines vergleichsspannungsbasierten analytischen Berechnungsverfahrens die Erstellung eines örtlichen Berechnungskonzeptes nach dem Kerbspannungskonzept. Hiermit konnte die Einschätzung der Zahnfußtragfähigkeit bei der Neuentwicklung und die Optimierung von Getrieben verbessert werden<br>Worm gears are well suited for gearbox applications in environments with discontinuous conditions and mechanical vibrations. In the case of high torque and low speed, the tooth root strength is the primary design limit. The aim of the present paper is to improve the accuracy of the calculation methods for the tooth root strength of worm wheels. To reach this, all parameters which affects the strength of the tooth root were examined. This includes the geometry, the manufacturing, the materials and the stresses of worm wheels. Through this investigation, the development of a new analytical calculation method based on the equivalent stress concept could be done. Furthermore, a local calculation method based on the notch stress concept was developed. Thus, the forecast of the tooth root strength of worm wheels for redevelopment and optimization could be improved

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Reißmann, Jan. "Beitrag zur Entwicklung einer verbesserten Berechnungsmethode für die Zahnfußtragfähigkeit von Zylinderschneckengetrieben." Doctoral thesis, Universitätsverlag der Technischen Universität Chemnitz, 2015. https://monarch.qucosa.de/id/qucosa%3A20465.

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Schneckenradgetriebe sind aufgrund ihrer Verzahnungsgeometrie prädestiniert für Getriebeanwendungen mit diskontinuierlichem und schwingungsbehaftetem Betrieb. Bei hohen Momenten und geringen Drehzahlen stellt dabei die Zahnfußtragfähigkeit die primäre Auslegungsgrenze dar. Das Ziel der vorliegenden Arbeit lag in der Erhöhung der Genauigkeit der Berechnungsmethoden für die Zahnfußtragfähigkeit von Schneckenrädern, auch zur Steigerung des Volumennutzwertes dieser Getriebe. Hierzu wurden alle die Tragfähigkeit des Zahnfußes beeinflussenden Parameter durch eine Vielzahl von Experimenten und FE Simulationen untersucht. Dies schließt eine genaue Analyse der Geometrie von Schneckengetrieben, deren Fertigung und Einbausituation, die verwendeten Werkstoffe und deren Beanspruchung mit ein. Auf dieser Basis gelang neben der Entwicklung eines vergleichsspannungsbasierten analytischen Berechnungsverfahrens die Erstellung eines örtlichen Berechnungskonzeptes nach dem Kerbspannungskonzept. Hiermit konnte die Einschätzung der Zahnfußtragfähigkeit bei der Neuentwicklung und die Optimierung von Getrieben verbessert werden.<br>Worm gears are well suited for gearbox applications in environments with discontinuous conditions and mechanical vibrations. In the case of high torque and low speed, the tooth root strength is the primary design limit. The aim of the present paper is to improve the accuracy of the calculation methods for the tooth root strength of worm wheels. To reach this, all parameters which affects the strength of the tooth root were examined. This includes the geometry, the manufacturing, the materials and the stresses of worm wheels. Through this investigation, the development of a new analytical calculation method based on the equivalent stress concept could be done. Furthermore, a local calculation method based on the notch stress concept was developed. Thus, the forecast of the tooth root strength of worm wheels for redevelopment and optimization could be improved.

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8

Pavelka, Radomil. "Pohon vřeten pětivřetenového soustružnického automatu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231522.

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The subject of the thesis is design of independent spindle drive for multi-spindle automatic lathe MORI-SAY TMZ 520 CNC manufactured by TAJMAC-ZPS. The thesis will introduce the representatives of manufacturing program of TAJMAC-ZPS multi-spindle automatic lathes division and there will be a brief description of their main constructional parts. The main objective of the thesis is an engineering design of testing device which will be bulit for verification of the correct drive concept. There is also many calculations and detailed description of the engineering design. The testing device is made for internal needs of TAJMAC-ZPS.

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Neklapil, Libor. "Návrh souosého vysokootáčkového reduktoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228136.

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The thesis deal with design of coaxial high-speed gear box for small-scale turboshaft engines. At the beginning a study of problems was performed and for design concept was elected version of single-shaft turbo-engine with electric generator. Kinematic diagram, type of gear design, material and lubrication method was designed. Further was solved proposal of basic gearing parameters, choice of the number of tooth and basic proposal calculations were performed. Was performed check calculation of gearing, calculation of bearings durability and was processed design documentation in required range. Designed gear reducer has two stage with three coutershafts, that are deployed evenly about main axis of reducer. First stage is gear with external gearing, second stage with internal gearing. The thesis may be used as a template for next similar gear reducers design.

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Bidouche, Badr-El-Boudour. "Étude et réalisation d’une machine asynchrone basse vitesse à réducteur magnétique intégré." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0228.

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Nous nous proposons dans ce travail d’étudier un entrainement par moteur à induction à rotor bobiné intégrant un réducteur de vitesse magnétique qui constitue la MaGIM « Magnetically Geared Induction Machines ». L’objectif est d’améliorer la fiabilité et les performances du système classique associant une machine asynchrone (MAS) à un réducteur mécanique (broyeur, concasseur…), la machine étant alimentée directement par le réseau. Nous dimensionnons un prototype MaGIM de 1 kW - 45 tr/min fonctionnant sur le réseau à 400 V/50 Hz en utilisant des outils de calculs analytiques et numériques permettant de prédire les performances électromagnétiques du dispositif. Nous présentons dans le premier chapitre un état de l’art des différents engrenages magnétiques étudiés depuis le 20ème siècle jusqu'à nos jours. Les différentes structures et topologies étudiées sont recensées. Compte tenu de sa complexité, nous avons modéliser la machine asynchrone et le réducteur de vitesse magnétique séparément, dans le chapitre II. Un modèle théorique de la machine prenant en compte les aspects électromagnétiques et thermiques a été développé pour obtenir un dimensionnement acceptable suivant un cahier des charges précis. Nous avons présenté les performances électromagnétiques du système obtenu ainsi que les calculs thermiques effectués par une méthode nodale. Le fonctionnement en régime transitoire de la machine par l’établissement d’un modèle analytique regroupant les équations mécaniques de la machine asynchrone et de l’engrenage magnétique a été présenté au chapitre III. Ce modèle nous a permis de déterminer les performances de la MaGIM lors d’un démarrage direct sur le réseau. Nous avons pu constater que la MaGIM peut démarrer sur le réseau sous pleine tension et que ce démarrage est fortement dépendant du moment d’inertie Jl. Cette étude nous a permis de mettre en évidence le phénomène de décrochage de la MaGIM et la particularité des engrenages magnétique à se protéger contre les surcharges. Dans le dernier chapitre, nous avons présenté la réalisation du prototype 1 kW, fonctionnant sur le réseau 400 V/ 50 Hz et délivrant 210 Nm en sortie à environ 50 tr/min. Le prototype a été réalisé dans l’atelier mécanique de VEDECOM - Mobilab. Des essais expérimentaux ont été effectués à l’issue de la réalisation dans le but de les comparer aux résultats théoriques et aussi de valider le concept de la MaGIM<br>We propose in this work to study a wound rotor induction motor integrating a magnetic gear which constitutes the MaGIM " Magnetically Geared Induction Machines ". The aim is to improve the reliability and the performances of the classical system associating an induction machine (MAS) with a mechanical reducer (mill, crusher...), the machine being fed directly by the network. Therefore, we designed a MaGIM prototype of 1 kW - 45 rpm operating on the grid at 400 V/50 Hz using analytical and numerical calculation tools to predict the electromagnetic performances of the device. In the first chapter, we present a state of the art of the different magnetic gears studied from the 20th century to the present day. The different structures and topologies studied are listed. Given its complexity, we have modelled the induction machine and the magnetic gear separately, in chapter II. A theoretical model of the machine taking into account the electromagnetic and thermal aspects has been developed in order to obtain an acceptable design according to precise specifications. We have presented the electromagnetic performance of the system obtained as well as the thermal calculations carried out using a nodal method. The transient operation of the machine by establishing an analytical model including the mechanical equations of the induction machine and the magnetic gear was presented in chapter III. This model allowed us to determine the performance of the MaGIM during a direct start on the network. We have seen that the MaGIM can start on the mains under full voltage and that this starting is strongly dependent on the moment of inertia Jl. This study allowed us to highlight the stall phenomenon of the MaGIM and the particularity of magnetic gears to protect themselves against overloads. In the last chapter, we presented the realization of the 1 kW prototype, operating on the 400 V/ 50 Hz network and delivering 210 Nm output at about 50 rpm. The prototype was produced in the mechanical workshop of VEDECOM - Mobilab. Experimental tests were carried out at the end of the realization in order to compare them with the theoretical results and also to validate the concept of the MaGIM

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Books on the topic "Gear calculation"

1

Fridman, A. L. Calculations for fishing gear designs. Published by arrangement with the Food and Agriculture Organization of the United Nations by Fishing News, 1986.

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2

Engineers, Society of Automotive, ed. Gear handbook: Design and calculations. Butterworth-Heinemann, 1992.

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ill, Dawson Peter, ed. All the right angles: From gear ratios to calculating odds : mathematics in the world of sports. Firefly Books (U.S.), 2013.

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Ovtov, Vladimir. Machine parts. Course design. INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1171976.

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The textbook discusses the methodology of course design of general-purpose drives with a single-stage gearbox (cylindrical, conical and worm) and a V-belt or chain transmission. The procedure for calculating gears and constructing assembly drawings of gearboxes is shown, the development of specifications using the COMPASS-3D computer-aided design system is described. Examples of the design of drawings of the general type of the drive, assembly drawings of gearboxes and working drawings of parts of various types of gearboxes are given. Meets the requirements of the federal state educational standards of higher education of the latest generation. It is intended for independent work of students of engineering specialties studying in the bachelor's degree and specialty.

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International Conference on Gears 2017. VDI Verlag, 2017. http://dx.doi.org/10.51202/9783181022948.

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Talking about the design of modern high-performance power train applications, one of the essential components to focus on are the gears. Gears convert torque and speed in a very wide power range, at low cost and with minimal losses and noise emission. However, the demands regarding cost, power density, NVH-behavior and efficiency are steadily increasing. Demands, which can only be met using modern gearing technologies that allow combining individual materials, heat treatment and manufacturing processes. Particularly in the industrial sector, the requirements for the reliability and service life of the gear units have increased. Therefore, more and more accurate calculation methods are required for the load bearing capacity, life expectancy and failure probability as well as better test methods. This aspect is also becoming more important with regard to Industry 4.0 and Predictive Maintenance. In addition, the potentials of innovative production methods like powder metal sintering, plas...

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Fundamental Rating Factors and Calculation Methods for Involute Spur and Helical Gear Teeth (Agma 2001-B88 Ser.). Amer Gear Manufactures Assn, 1989.

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Buckingham, Earle. Manual of Gear Design: Gear Ratio and Mathematical Tables. Industrial Press, Inc., 1999.

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Cylindrical Gears: Calculation - Materials - Manufacturing. Hanser Publications, 2016.

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Fridman, A. L., and P. J. G. Carrothers. Calculations for Fishing Gear Designs/Fn120 (FAO Fishing Manual). Fishing News Books Ltd, 1987.

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1937-, Huston Ronald L., and Lewis Research Center, eds. A new procedure for calculating contact stresses in gear teeth. National Aeronautics and Space Administration, Lewis Research Center, 1991.

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Book chapters on the topic "Gear calculation"

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Kronerova, E. "Design Calculation of Spur Gear Module." In The Latest Methods of Construction Design. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-22762-7_36.

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Arnaudov, Kiril, and Dimitar Petkov Karaivanov. "Simplified Verifiable Calculation of A I ¯ -Planetary Gear Train Gears (according to ISO 6336)." In Planetary Gear Trains. CRC Press, 2019. http://dx.doi.org/10.1201/9780429458521-17.

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Müller, Daniel, Nadine Sagraloff, Stefan Sendlbeck, Karl Jakob Winkler, Thomas Tobie, and Karsten Stahl. "Gear Load Capacity Calculation Based on ISO 6336." In Dudley's Handbook of Practical Gear Design and Manufacture, 4th ed. CRC Press, 2021. http://dx.doi.org/10.1201/9781003126881-12.

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Qiu, Hua, and Gang Deng. "A Calculation Approach to Complete Profile of Noncircular Gear Teeth." In Lecture Notes in Electrical Engineering. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01273-5_3.

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Cuong, Nguyen Manh, Hoang Thi Tham, Tran Thi Hong, et al. "Calculation of Optimum Gear Ratios of Two-Step Worm Gearbox." In Advances in Engineering Research and Application. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-37497-6_21.

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Vasilyev, A. V., and Y. S. Bakhracheva. "Calculation of Kinematic Characteristics of Internal Combustion Engine Valve Gear." In Proceedings of the 4th International Conference on Industrial Engineering. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95630-5_43.

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Spirin, V. A., V. F. Makarov, and O. A. Khalturin. "Calculation of Thermodynamic Parameters of Geometrically Complex Parts at Abrasive Globoid Gear Machining." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22063-1_91.

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Poluektov, E. A., B. A. Lopatin, and S. V. Plotnikova. "Working Surface Calculation of Teeth Bevel Gear Helical-Bevel Gearing at Milling with Hob." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22063-1_2.

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Chen, Zhiying, and Pengfei Ji. "Time Varying Mesh Stiffness Calculation of Spur Gear Pair Under Mixed Elastohydrodynamic Lubrication Condition." In Lecture Notes in Electrical Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3305-7_237.

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Hung, Le Xuan, Tran Thi Hong, Nguyen Van Cuong, et al. "Calculation of Optimum Gear Ratios of Mechanical Driven Systems Using Two-Stage Helical Gearbox with First Stage Double Gear Sets and Chain Drive." In Advances in Engineering Research and Application. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-37497-6_20.

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Conference papers on the topic "Gear calculation"

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Dackermann, Tim, Steve Miller, Lars Hedrich, and Rolando Dölling. "Flexible Gear Model Library - Vibration Excitation Mechanisms and Gear Force Calculation." In Modelling, Identification and Control / 827: Computational Intelligence. ACTAPRESS, 2015. http://dx.doi.org/10.2316/p.2015.826-010.

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Achtenová, Gabriela, and Jiří Svoboda. "Computer-Aided Calculation of Planetary Gear Sets." In SAE 2003 World Congress & Exhibition. SAE International, 2003. http://dx.doi.org/10.4271/2003-01-0129.

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Shi, Zhenghong, Jui Chen, Mohsen Kolivand, et al. "Overall Transmission Error Calculation of Differential Gear." In Noise and Vibration Conference & Exhibition. SAE International, 2021. http://dx.doi.org/10.4271/2021-01-1101.

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Su, Xiaogen, and Donald R. Houser. "Calculation of Wobble From Lead Inspection Data of Gear Teeth With Modifications." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/ptg-5782.

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Abstract The effect of the reference misalignment including eccentricity and wobble on profile and lead inspection traces is discussed. The relative slopes of the lead traces induced by wobble are used to calculate the magnitude of the wobble. The deviation caused by the wobble is removed from the lead inspection results. This method is theoretically ‘exact’ for spur gears and is approximate for helical gears. Real measurement examples show this method produces a good result with a spur gear and a satisfactory result with a helical gear.

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Zhang, Luke, and Yimin Shao. "Mesh Stiffness Calculation of Spur Gears With Tooth Surface Crack." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97857.

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Abstract Tooth surface crack is an early fault before spalling, which has an important influence on mesh stiffness and vibration characteristics of the gear system. However, the researches on tooth surface crack are limited as scholars pay little attention to this early fault. In this study, an analytical model of spur gears with tooth surface crack is established. Using the potential energy method, the equations for mesh stiffness calculation of spur gears with tooth surface crack are derived. By adopting the proposed model, the influences of tooth surface crack fault on mesh stiffness of gear tooth are studied. The relationship between tooth surface crack and mesh stiffness of gear tooth under different lengths and depths can be further calculated. This study provides a theoretical basis for the diagnosis of early failure of spalling.

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Tingjian, Zhang. "The Calculation of Contact Deformation for Double Circular-Arc Gears." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0018.

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Abstract The Double Circular-arc gear (W-N gear) transmission is well-known as the high contact strength, good wear resisting property and well distributed wears. As developing of its applications in recent years, the contact deformation of W-N gear become more important. In this paper, under basic assumption, the equations for calculating contact deformation of Double Circular-arc gear tooth were derived by using theory of elasticity of general contact problem between arbitrary elastic bodies in three dimensions. The equations were proved by industrial gear applications (one of the example: transmission power N = 3000KW, circumferential speed V = 120 m / s, load fact K = 188 N / cm2, the hardness of tooth surface Hv &gt; 600, surface roughness of tooth Ra &lt; 0.32μm). The relationship between contact deformation of Double Circular-arc gear and helical angle (β), ratio of tooth numbers (u) and central distance (c) was also discussed in this paper. The result of this study provides an inportant reference for tooth stiffness and tooth correction calculation of Double Circular-arc gears.

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Lockard, David, Mehdi Khorrami, and Fei Li. "High Resolution Calculation of a Simplified Landing Gear." In 10th AIAA/CEAS Aeroacoustics Conference. American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-2887.

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Nakada, S., and I. Moriwaki. "Reduction of calculation time in gear shaving simulation." In International Technology and Innovation Conference 2006 (ITIC 2006). IEE, 2006. http://dx.doi.org/10.1049/cp:20061055.

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Fasterding, Gerald, and Hagen Birkholz. "Down Angle Gearboxes – Calculation and Manufacturing Innovation for Low Noise Beveloid Gears." In SNAME 15th Propeller and Shafting Symposium. SNAME, 2018. http://dx.doi.org/10.5957/pss-2018-09.

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Conical involute gears, also known as beveloid gears, are used in marine gearboxes to provide an angle between the drive shaft and the output shaft. The axes of the beveloid gear meshes reviewed can be intersecting or skewed. Beveloid gears are a general case of spur gears with their virtual generating rack cutter tilted in the direction of feed. An appropriate variable addendum modification along the face width leads to conjugate flanks and therefore to tooth line contact. The elasticity of the gear mesh itself, the shafts, bearings and the gear housing cause deformations and deflections. Thus a tip relief at the generating tool in combination with flank modifications is applied to improve strength and transmission characteristics. Noise emission is reduced by comparing the level of dynamic excitation of different profile corrections. Strength calculations are done with local stresses, since there is no standardized nominal stress assessment. Theoretical evaluations are confirmed by prototype testing. This integrated designing procedure allows for an efficient planning and engineering for special beveloid gears. Several examples of application will be shown.

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Zou, Shuaidong, Guangjian Wang, and Li Yu. "Research on Calculation of Unloaded Transmission Error of Planetary Gear Train Caused by Eccentricity." In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-67463.

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In this paper, calculation of no-load transmission error (TE) of planetary gear train is studied. The theory computational model of the eccentric planetary gear train with single planet gear (SPG) under no-load conditions is constructed initially for acquiring the formulas of no-load transmission ratio error and unloaded transmission error (UTE) of internal and external gear pairs. Then computational formula of the UTE of planetary gear train with SPG caused by eccentricity is presented. Through simulation TE and the developed formula of UTE, the eccentricities and initial phasing are uncoupled by curve fitting. Simultaneously, formula of UTE of planet gear train with SPG is validated. At the same time, different groups of initial phasing are analyzed to acquire the relatively good initial phasing group. In addition, the UTE of planetary gear train with multiple planet gears (MPG) caused by eccentricity is developed.

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Reports on the topic "Gear calculation"

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National reports 2009-2019 - Rural NEET across Europe (14 countries reports). OST Action CA 18213: Rural NEET Youth Network: Modeling the risks underlying rural NEETs social exclusion, 2020. http://dx.doi.org/10.15847/cisrnyn.nr14.2020.12.

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This report outlines in detail the situation of rural Youths Neither in Employment, nor in Education or Training (NEET) aged between 15 and 34 years old, over the last decade (2009-2019) in Bosnia and Herzegovina. To do this, the report utilised indicators of: you-th population; youth employment and unemployment; education; and, NEETs distribution. The characterisation of all indicators adopted the degree of urbanisation as a central cri-terion, enabling proportional comparisons between rural areas, towns and suburbs, cities and the whole country. These analyses are further divided into age subgroups and, where possible, into sex groups for greater detail. The statistical procedures adopted across the different selected dimensions involve: des-criptive longitudinal analysis; using graphical displays (e.g., overlay line charts); and, the calculation of proportional absolute and relative changes between 2009 and 2013, 2013 and 2019, and finally 2009 and 2019. These time ranges were chosen to capture the in-dicators evolution before and after the economic crisis which hit European countries. All data was extracted from ILOSTAT explorer public datasets.The analyses show that between 2009 and 2019 youth population in both rural and urban areas decreased. In general, a strong decline in youth population was observed within all categories, with the most significant decrease within the age group 25-29 (21.57%) and 15-19 (20.35%). Youth employment has tended to decrease overall, and the decrease is stron-ger within rural regions. Interestingly, youth unemployment has also tended to decrease, and a significantly higher share of unemployed youth is from rural regions. A somewhat similar trend is observed in the field of education where the number of those enrolled significantly decreased during the observed period for all education levels in Bosnia and Herzegovina. The ESLET rate tended to decrease, while the proportion of the female po-pulation tends to have higher ESLET levels compared to the male population. However, the ESLET rate is still below the 10% target defined by the Europe 2020 strategy. Finally, the proportion of NEETs in Bosnia and Herzegovina is higher in rural areas, while in general the tendency has been for it to decrease during the observed period.

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National report 2009-2019 - Rural NEET in Bosnia-Herzegovina. OST Action CA 18213: Rural NEET Youth Network: Modeling the risks underlying rural NEETs social exclusion, 2020. http://dx.doi.org/10.15847/cisrnyn.nrba.2020.12.

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Abstract:

This report outlines in detail the situation of rural Youths Neither in Employment, nor in Education or Training (NEET) aged between 15 and 34 years old, over the last decade (2009-2019) in Bosnia and Herzegovina. To do this, the report utilised indicators of: you-th population; youth employment and unemployment; education; and, NEETs distribution. The characterisation of all indicators adopted the degree of urbanisation as a central cri-terion, enabling proportional comparisons between rural areas, towns and suburbs, cities and the whole country. These analyses are further divided into age subgroups and, where possible, into sex groups for greater detail. The statistical procedures adopted across the different selected dimensions involve: des-criptive longitudinal analysis; using graphical displays (e.g., overlay line charts); and, the calculation of proportional absolute and relative changes between 2009 and 2013, 2013 and 2019, and finally 2009 and 2019. These time ranges were chosen to capture the in-dicators evolution before and after the economic crisis which hit European countries. All data was extracted from ILOSTAT explorer public datasets.The analyses show that between 2009 and 2019 youth population in both rural and urban areas decreased. In general, a strong decline in youth population was observed within all categories, with the most significant decrease within the age group 25-29 (21.57%) and 15-19 (20.35%). Youth employment has tended to decrease overall, and the decrease is stron-ger within rural regions. Interestingly, youth unemployment has also tended to decrease, and a significantly higher share of unemployed youth is from rural regions. A somewhat similar trend is observed in the field of education where the number of those enrolled significantly decreased during the observed period for all education levels in Bosnia and Herzegovina. The ESLET rate tended to decrease, while the proportion of the female po-pulation tends to have higher ESLET levels compared to the male population. However, the ESLET rate is still below the 10% target defined by the Europe 2020 strategy. Finally, the proportion of NEETs in Bosnia and Herzegovina is higher in rural areas, while in general the tendency has been for it to decrease during the observed period.

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