Relevant bibliographies by topics / Gearbox design

Contents

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

Academic literature on the topic 'Gearbox design'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Gearbox design"

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Bligh, A. O., Noor A. Ahmed, and Y. Y. Zheng. "Design and Manufacture of a Planetary Gearbox Rig." Applied Mechanics and Materials 397-400 (September 2013): 176–88. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.176.

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Planetary gearboxes are required in many applications but have a high failure rate especially in wind turbines where rapid growth in turbine size is placing larger demands on the gearboxes. Current condition monitoring techniques are less effective at detecting faults in planetary gearboxes due to the complexity of the internal rotating components. A small scale planetary gearbox was, therefore, needed for testing on a gearbox test rig to develop a more effective method of condition monitoring. The detailed computer design and manufacture of the planetary gearbox for this purpose is detailed in this paper.
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Кучкаров, Владимир, Vladimir Kuchkarov, Дмитрий Демидов, and Dmitriy Demidov. "HISTORICAL REVIEW OF DESIGN DEVELOPMENT OF MOTOR CAR GEARBOXES." Bulletin of Bryansk state technical university 2017, no. 1 (March 31, 2017): 125–32. http://dx.doi.org/10.12737/24903.

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The paper reports the review in the development of motor car gearbox design. The main task consists in the detection of the reasons for changes in gearbox design for the definition of the field for gearbox substantiated application in motor car design. In the main part the advantages and shortcomings of manual, automated, infinitely variable and automatic gearboxes are under consideration. There are shown and analyzed functional diagrams of gearbox designs considered. In the conclusion it is pointed out that the most promising design of a gearbox is a robot gearbox with two clutches allowing the assurance of the absence of power flow break; the smoothness of gear shifts and smoothness of motion; comfort of control; high fuel efficiency; high tractiondynamic characteristics.
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Lee, Geun-Ho, Young-Jun Park, Ju-Seok Nam, Joo-Young Oh, and Jeong-Gil Kim. "Design of a Mechanical Power Circulation Test Rig for a Wind Turbine Gearbox." Applied Sciences 10, no. 9 (May 7, 2020): 3240. http://dx.doi.org/10.3390/app10093240.

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We developed a mechanical power circulation test rig for a wind turbine gearbox with a power rating of 5.8 MW or less. The test rig consists of an electric motor, two auxiliary gearboxes, a torque-applying device, lubrication systems, cooling systems, and control systems. The torque generating device consists of a planetary gearbox and a hydraulic control system and is used to apply the desired torque to the test gearbox. The hydraulic control system applies the torque on the ring gear of the planetary gearbox. The gears and bearings of the two auxiliary gearboxes and planetary gearboxes met the design criteria for a safety factor of over 1.2 and a bearing life of 30,000 h. In addition, the master and slave gearboxes were connected to the test rig to verify whether the torque-applying device had applied variable torque in real-time during the test. The device was only able to induce a variable torque of up to 45.2 kN-m due to the limitation of the rated torque of the master and slave gearboxes. The test rig can test not only efficiency, vibration, and noise but also durability and overloading.
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Rakhit, A. K. "An Improved Epicyclic Gearbox for Reduced and Controllable Subsynchronous Vibrations in Gas Turbogenerator Applications." Journal of Engineering for Gas Turbines and Power 119, no. 3 (July 1, 1997): 640–46. http://dx.doi.org/10.1115/1.2817032.

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An improvement is made to the design of an epicyclic gearbox that limits the dynamic eccentricities of gearbox components. Gearboxes were manufactured to the new design and tested, showed reduced levels of subsynchronous vibrations at the turbine bearings. The in-situ balancing feature of the gearbox is also found to be very effective in reducing these vibrations further. The improved gearboxes not only assured the service life of the turbine bearings, but also increased the success rate of package testing the first time with substantial cost savings.
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Qu, Heng Xu. "Structure Optimal Design Method and Engineering Application." Advanced Materials Research 311-313 (August 2011): 2440–43. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.2440.

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he paper introduces the analysis of finite element for gearbox’s intensity, then optimal design for gearbox has achieved good optimal result leading to the weight reduced 3746kg, 23.18%less than original weight with the thickness of the main board as deign variables and the stress and displacement as constraint conditions. The optimization results have practical significance on the structural optimization and the weight of the gearbox, offering reference data for weight reduction of gear box design.
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Rao, S. S., and H. R. Eslampour. "Multistage Multiobjective Optimization of Gearboxes." Journal of Mechanisms, Transmissions, and Automation in Design 108, no. 4 (December 1, 1986): 461–68. http://dx.doi.org/10.1115/1.3258755.

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The problems of kinematic and strength designs of multispeed gearboxes are formulated as multiobjective optimization problems. In the kinematic design stage, the speeds of all the shafts, the number of teeth on various gears and the gear module are selected so as to minimize the deviation of output speeds from specified values and the overall center distance of the gearbox. In the strength design stage, the face widths of the various gear pairs are chosen so as to minimize the volume of the material of the gears and to maximize the power transmitted by the gearbox. A goal programming approach is suggested for the solution of the multiobjective nonlinear constrained optimization problem by treating the ideal feasible solutions as the goals for the corresponding objective functions. The utility of the resulting computer program is demonstrated through the design of six- and 18-speed gearboxes. The present methodology offers the feasibility of automating the design of gearboxes by incorporating all the (conflicting) design requirements and objectives.
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Yang, Wen Zhi, Ju Feng Cao, and Wei Zhang. "Study on Dynamic Simulation of Wind Turbine Gearbox Based on Pro/E and ADAMS." Applied Mechanics and Materials 644-650 (September 2014): 442–45. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.442.

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Domestic wind turbines with 1.5MW gearbox as the research object, application of virtual prototyping technology (ADAMS) simulation of dynamics of wind turbine gearbox when braking .According to research gear box structure, size and other parameters, using Pro / E software to create a solid model of wind turbine gearboxes. After importing to the ADAMS software, add the necessary constraints and loads, virtual prototype model of the gearbox is established. The simulation of dynamics of wind turbine gearbox are carried out by using ADAMS, and the angular velocity of the in-out shaft, gear meshing force and the vibration when braking cloud are obtained. That result is match with the theoretical value through analysis and the accuracy of ADAMS simulation is verified. The simulation results show that the design level of wind turbine gearboxes can be improved by using the virtual prototype technology and lay a good foundation for further design.
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Syromyatnikov, V. S., Garcia Martinez Juan Marcos, Samora Quintana Laura Angelica, and Ortega Rosales Miguel Gersaun. "Design of spur gearbox shafts for fatigue Fatigue Design of Spur Gearbox Shafts." Proceedings of Higher Educational Institutions. Маchine Building, no. 7 (712) (July 2019): 3–10. http://dx.doi.org/10.18698/0536-1044-2019-7-3-10.

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Spur gearboxes are used in machine drives to transfer torque from the engine to the machine’s working element: the driving wheel of the car, the rotor of the helicopter or the drum of the conveyor. Spur gears and bearings are mounted on the shafts of the gearbox. Under the action of torque and forces in the gearing of the wheels, tangential and normal stresses occur in the cross section of the shaft. Normal stress varies in a symmetrical cycle and leads to material fatigue. In view of this, a mathematical model is proposed to improve the accuracy of calculating the overall safety factor for shaft fatigue resistance. Based on the von Mises deformation theory, equivalent stress parameters (amplitude and the mean) are determined. To assess the safety margin of the shaft, Soderberg, Goodman, Gerber, and ASME criteria are used. The stress amplitude margin is calculated depending on the endurance limit of the shaft material, refined according to the specified conditions. The average stress margin is determined relative to the yield strength of the material or the ultimate strength. Formulae for calculating the overall safety factor of amplitude and average stress are obtained. With a known safety factor and load, it is possible to determine the shaft diameter at the preliminary design stage of the gearbox according to the fatigue resistance condition.
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Long, Hui, Jing Ze Wu, and Andrew Firth. "Improving Gearbox Design and Analysis for Offshore Wind Turbines." Applied Mechanics and Materials 86 (August 2011): 309–12. http://dx.doi.org/10.4028/www.scientific.net/amm.86.309.

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The paper outlines challenges in improving wind turbine availability to reduce the cost of offshore wind energy. It reports the development of a design software tool for wind turbine gearboxes. It facilitates efficient conceptual designs of wind turbine gearboxes with combinations of epicyclic and parallel gear trains. Field loading conditions are obtained by analysing SCADA (Supervisory Control and Data Acquisition) data to support fatigue damage estimation based on Miner’s rule. Results show that considerable overloading conditions are present which would result in significant fatigue damages to the gearbox.
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Zamponi, Laurent, Emmanuel Mermoz, and Jean Marc Linares. "Study of Bearing Modelling in the Helicopter Gearbox." Applied Mechanics and Materials 86 (August 2011): 721–24. http://dx.doi.org/10.4028/www.scientific.net/amm.86.721.

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In trying to incessantly reduce gearboxes weight, designers can negatively impact the service reliability, particularly in the aeronautic industry, where a weight reduction is often linked with stiffness decrease. Looking for weight savings, gearbox casings are classically made of magnesium or aluminium alloy. In addition, helicopter gearbox design is included the integration of several functions within the same part (like the shafts which gather one or more gears, splines and integrated bearings raceways). These particularities in the design are requiring some specific methodologies for Power Transmission bearing modelling. In this paper, a comparison between tests and simulations results of the aforementioned gearboxes is presented. The first section of the article focuses on the helicopter gearbox description and associated finite elements modelling. Then, the second section provides a comparison between the experimental observations with the results of both FEM simulation and classical analytical simulation. This comparison demonstrates the interest of using FEM simulation to analyze gearboxes behaviour.
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Dissertations / Theses on the topic "Gearbox design"

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Ozturk, Fatih Mehmet. "Optimum Design Of Multistep Spur Gearbox." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606749/index.pdf.

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Optimum design of multistep gearbox, since many high-performance power transmission applications (e.g., automotive, space industry) require compact volume, has become an important interest area. This design application includes more complicated problems that are not taken into account while designing single stage gear drives. Design applications are generally made by trial and error methods depending on the experience and the intuition of the designer. In this study, using Visual Basic 6.0, an interactive program is developed for designing multistep involute standard and nonstandard spur gearbox according to the American Gear Manufacturers Association (AGMA) Standards 218.01 and 2001- B88. All the equations for calculating the pitting resistance geometry factor I, and the bending strength geometry factor J, are valid for external spur gears that are generated by rack-type tools (rack cutters or hobs). The program is made for twostage to six-stage gear drives, which are commonly used in the industry. Compactness of gear pairs and gearbox, and equality of factor of safety against bending failure is taken as the design objective. By considering the total required gear ratio, the number of reduction stages is input by the user. Gear ratios of every stage is distributed to the stages according to the total gear ratio that satisfies the required precision (from ±
0.1 to ±
0.00001 on overall gear ratio) depending on the user selected constraints (unequal gear ratio for every stage, noninteger gear ratio e.g.). Dimensional design is determined by considering bending stress, pitting stress, and involute interference constraints. These steps are carried out iteratively until a desirable solution is acquired. The necessary parameters for configuration design such as number of teeth, module, addendum modification coefficient, are selected from previously determined gear pairs that satisfies the constraints by user interaction considering the performance criterion from the developed program. The positions of gears and shafts are determined automatically in order to keep the volume of gearbox as minimum while satisfying the nonlinear spatial constraints (center distance constraint for proper meshing of gear pairs, face distance constraint for proper assembly of pinion and gear having same shaft, gear interference constraint for preventing interferences between gears, shaft interference constraint for preventing interferences between gears and shafts) by using DLL (Dynamic Link Library) technology of Lingo 8.0 optimization software together with Visual Basic 6.0. If shaft interference constraint is removed then cantilevered mounting of gear pairs would also be possible, otherwise the gears should be mounted between bearings. Visual output of assembly is made by using Autodesk Inventor 7.0, automatically by the program.
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Ivanov, Dinko. "Gearbox housing design – topology optimization through generative design." Thesis, KTH, Maskinkonstruktion (Avd.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244983.

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Detta examensarbete använder ett systematiskt tillvägagångssätt för att omkonstruera ett växellådshus till ett elektriskt fordon med avsikt att förbättra prestanda med avseende på hållfasthet, livslängd och styvhet. I examensarbetet ges även en kort beskrivning av hur växellådan fungerar, vilken roll den spelar i de elektriska fordonen, samt grundläggande teori som används  vid konstruktion av liknande växellådor. Den huvudsakliga arbetsmetoden som använts för att nå målen är topologioptimering och olika lösningar har simulerats för att förenkla den framtida omkonstruktionen. Analyser av de olika resultaten har lett fram till ett grovt förslag på hur växellådshuset kan utformas. Det resultatet förkastades efter det att några extra simuleringar gjorts. Även om inget slutgiltigt förslag hittades, har detta examensarbete tagit fram en bra grund och vägvisning för att senare lyckas med uppdraget.
This thesis targets a systematic approach for redesign of the gearbox housing for an electrical vehicle, with an intention to improve its performance in terms of structural integrity, durability and compliance. Throughout the work, a brief overview of gearbox purpose, position and significance in context of electric vehicles has been presented, some theoretical background concerning design of similar gearboxes is presented and underlying theoretical fundamentals are reviewed. Topology optimization has been utilized as the main method for achieving the goals and various solving runs were performed in order to ease the subsequent redesign. Interpretations of multiple result sets led to a rough outline guess of a possible solution candidate. After supplementary studies, that solution was later discarded. In the end, although no final redesign was generated, clear and comprehensive directions for achieving the targeted goal have been formulated.
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Simpson, D. J. A. "The object-oriented paradigm applied to the design and analysis of mechanical systems." Thesis, Heriot-Watt University, 1996. http://hdl.handle.net/10399/717.

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Vatkar, Shirish Talia Jorge E. "Design of a two stage epicyclic gearbox in sintered metal gears." Diss., A link to full text of this thesis in SOAR, 2007. http://soar.wichita.edu/dspace/handle/10057/1183.

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Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Mechanical Engineering..
"May 2007." Title from PDF title page (viewed on Dec. 29, 2007). Thesis adviser: George Talia. Includes bibliographic references (leaves 100-101).
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Gradin, Beata. "Managing Design Change in Complex Production Development Project : A study at Scania Gearbox Assembly." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-386076.

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The speed of launching new products will accelerate and so the complexity of products and productions systems (Sorli et al 2006; Windt et al., 2008). Change is a natural effect of product development and it offers opportunities to develop the related production (Jarratt et al, 2011; Lager, 2002). To increase the launching, simultaneous development projects with a multi-project structure can be initiated (Araszkiewicz, 2017). This results in transmitted design changes from the product development project into the related production development project. In turn, the production development project needs to manage these transmitted design changes.  The study has investigated how transmitted design changes shall be managed in production development projects. This was performed by exploring theoretical fields of Engineering Change and Project Management and collecting empirical data from a studied complex production development project at Scania DT.  A standardized Transmitted Design Change process is recommended to use in order to achieve better communication in-between the interdependent projects and manage change with respect to risk and without harming other processes. Furthermore, project management methodologies and its characteristics were discussed in order to support and facilitate the management of transmitted design changes. The study concludes that both flexible and traditional project management methodologies shall be adopted in these complex development projects with high levels of interdependencies. The combined strategy supports changes and uncertainties with flexible iterations and controls the projects with standardized processes and structure.
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Vorster, Christiaan Willem. "Design of a reluctance synchronous machine for an electric vehicle with a multi speed gearbox." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95950.

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Thesis (MEng)--Stellenbosch University, 2014.
ENGLISH ABSTRACT: Conventional electrical vehicles (EVs) favour mostly permanent magnet machines with single speed gearboxes. This is understandable, the PM machine has a high power density making the electrical machine smaller in size. The PM machine also has a favourable field weakening capability combining this with a single speed gearbox nearly perfectly matches the required traction curve. However the dependency of rare earth metals from China and the environmental issues raised by mining these metals raise concern. Therefore alternatives should be considered. Induction -, switch reluctance - and wound rotor machines are all gaining ground as favourable traction machines to power vehicles. The reluctance synchronous machine (RSM) is known for it’s robustness and high efficiency, however the machine has a limited field-weakening capability. To overcome this short coming a multi gearbox from an internal combustion engine (ICE) is suggested. By combining the RSM and multi speed gearbox it is possible to match the traction curve. There are numerous advantages offered by using this system, especially from an performance and efficiency point of view. However there are also numerous challenges faced by using the suggested powertrain, however the focus of this study is mainly on performance and efficiency of the motor and the powertrain. As a case study a Corsa 140i is used and the design specifications is taken from the ICE. The aim is to design a RSM that meets the specifications of the ICE. The RSM structure is mathematically modelled then optimized using commercial optimization and 2D finite element software. To evaluate the design of the RSM, the motor is then tested. The powertrain is then tested by connecting the motor onto the gearbox of the Corsa and the efficiency of the powertrain is evaluated. The test results it shown that the RSM can be used as a traction motor. There are two motors built one with NO20 and the other with M530-65A lamination steel. Both motors perform well throughout the speed and torque spectrum. The measured efficiency at the rated condition for the motor with the NO20 steel is above 91% and the motor with the M530-65A laminations above 89%. The power train is is tested in 4th and 5th gear. The efficiency of 4th and 5th gear is approximated and the efficiency is above 90% . This high efficiency makes the multi speed gearbox a competitor for the EV power train.
AFRIKAANSE OPSOMMING: Elektrisie voertuie (EVe) het meestal permanent magneet motors met ’n enkel spoed ratkas. Dit is verstaanbaar, die PMS masjien het ’n hoë krag digtigheid wat die masjien kleiner maak in grote. Die PMS masjien het ’n baie goeie vloed veld verswakkings gebied en as dit gekombineer word met ’n enkel spoed ratkas, volg dit die velangde traksie kurwe amper perfek. Die nadeel is dat die PMS motor skaars aard metale nodig het vir die magnete van China af. Die probleem is dat daar baie omgewings probleme gepaard gaan om die metale te myn en China beheer die mark. As gevolg hiervan moet ander tipe motors oorweeg word as traksie motors vir voertuie. Skakel reluktansie, induksie en ’n wikkel rotor motors is almal besig om vordering te maak as traksie motors vir EV’e. Die sinchroon reluktansie motor (RSM) is bekend as ’n robuuste en effektiewe motor. Die probleem met die RSM is dat dit nie ’n goeie vloed veld verswakkings gebied het nie. Om die probleem te oorkom, word ’n veranderlike spoed ratkas van ’n binnebrand engin voorgestel. Deur om die RSM en die veranderlike spoed ratkas as ’n dryfstelsel te gebruik kan die verlangde traksie kurwe ook verkry word. Daar is talle voordele om ’n veranderlike spoed ratkas te gebruik, veral van af ’n draaimoment verrigting en effektiwiteits oogpunt. Daar is ongelukkig ook baie uitdagings wat gepaard gaan as ’n veranderlike spoed ratkas gebruik wil word in die dryfstelsel. Alhoewel daar baie uitdagings is kyk die studie slegs na die draaimoment verrigting en die effektiwiteit van die dryfstelsel. ’n Corsa 140i word as ’n gevallestudie gebruik en die spesifikasies vir die elektrisie motor word vanaf die spesifikasies van die binnebrand engin geneem. Die doel is om ’n motor te ontwerp wat dieselfde spesifikasies het as die binnebrand engin. Die RSM strukstuur word wiskundig gemodelleer en dan geoptimeer deur gebruik te maak van kommersiele optimering en 2D eindige element sagteware. Om die ontwerp te verifieer word die motor getoets. Die dryfstelsel word dan getoets deur om die motor met die raktas te konnekteer. Die draaimoment verrigting en die effektiwiteit word dan ge-evalueer. Twee motors word gebou, een met NO20 laminasies en een met M530-65A laminasies. Beide motors het goeie verrigting deur die spoed en draaimoment gebied. Die gemeete effektiwiteit van die motor met die NO20 laminasies is bo 91% en die motor met die M530-65A laminasies het ’n gemeete effektiwiteit bo 89%. Die toets resultate wys dat die RSM as ’n traksie motor gebruik kan word. Die dryfstelsel word in 4de en 5de rat ge-evalueer. Die effektiwiteit van die ratkas in 4de en 5de word benader en ’n effektiwiteit bo 90% is verkry. Hierdie hoë effektiwiteit maak die veranderlike spoed ratkas ’n lewensvatbare mededinger in die EV dryfstelsel.
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Löfgren, Maria, and Hiba Seid. "Cost and Weight Estimations at an Early Conceptual Design stage : Case study with gearbox manufacturing." Thesis, KTH, Industriell produktion, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217864.

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Touimi, Khalil. "Design optimization of a gearbox driven tidal stream turbine Tidal stream turbines: With or without a gearbox?, in Ocean Engineering 170, December 2018 Optimal Design of a Multibrid Permanent Magnet Generator for a Tidal Stream Turbine, in Energies 13(2), 2020." Thesis, Brest, 2020. http://theses-scd.univ-brest.fr/2020/These-2020-SPI-Genie_electrique-TOUIMI_Khalil.pdf.

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L’énergie marémotrice fait l'objet d'une attention croissante en tant que future source potentielle d'énergie renouvelable. Les hydroliennes sont cependant encore en phase de développement et leur technologie n'est pas aussi mature que celle des éoliennes. Outre le fait que cette technologie est encore émergente, les hydroliennes doivent faire face à l’environnement sous-marin hostile dans lequel elles sont immergées. Ces contraintes augmentent la criticité des sous-systèmes des hydroliennes et les rendent moins fiables. Par conséquent, l’amélioration de la fiabilité constitue l'un des défis à relever pour rendre l’énergie marémotrice compétitive en termes de coût par rapport à d'autres types d’énergie, notamment les énergies éolienne et solaire. En effet, la fiabilité des hydroliennes et le coût de l’énergie produite sont principalement affectés par les choix de configuration de la chaîne de conversion d’énergie (entraînement mécanique) et de la génératrice. Dans cette thèse, le type d’entrainement mécanique le plus adapté aux spécifications des hydroliennes est étudié. Trois configurations principales de génératrices et de transmission sont considérées ; à savoir l’hydrolienne à entraînement direct (sans multiplicateur), l'hydrolienne à multiplicateur mécanique et enfin l’hydrolienne à multiplicateur magnétique. Le processus de conception adopté prend en compte la modélisation électromagnétique de la génératrice, le modèle du convertisseur, le modèle de la turbine et les données de vitesse des courants de marées (près de l'île d'Ouessant). Les résultats obtenus à l’issue de ces travaux pourraient être utiles aux concepteurs d'hydroliennes et pourraient leur donner un aperçu sur la faisabilité de chaque type de configuration d’hydroliennes
Tidal stream energy is acquiring more and more attention as a future potential renewable energy source. However, tidal stream turbines are still in development stages and their technology is not as mature as wind turbine technology. In addition to the infancy of the technology, tidal stream turbines have to withstand the harsh submarine environment where they are immersed. These constraints increase the criticality of tidal stream turbine subsystems and make them less reliable. Therefore, improving the reliability presents one of the challenges to make such energy competitive in terms of cost compared to other types, notably wind and solar energies. Indeed, the tidal stream turbine reliability and the produced energy cost are mainly affected by the drivetrain and generator configuration choices. In this Ph.D. thesis, suitable drivetrain and generator option choice is investigated for tidal stream turbine specifications. Three main generator and drivetrain configurations are considered which are, the direct- drive tidal stream turbine (gearless), the mechanically geared tidal stream turbine, and the magnetically geared one. The design process considers the electromagnetic modeling of the generator, the converter model, the turbine model, and the tidal current velocity data (near Ouessant island).The investigation-achieved results could be useful for tidal stream turbine designers and could give them a sight on the feasibility of each tidal stream turbine type
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Krimmel, Mirko. "Top Down Design eines Schubkurbelgetriebes." Universitätsbibliothek Chemnitz, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-141781.

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Der von der Firma ibb durch Herrn Mirko Krimmel geplante Vortrag im Rahmen der Saxsim 2014, umfasst die Vorgehensweise zur Entwicklung einer Getriebebaureihe als Top-Down Design. Dabei werden die Bauteilauslegungen und Festigkeitsberechnungen mit Mathcad nach der FKM-Richtlinie 2012 vorgestellt, sowie die Möglichkeit gezeigt, Mathcad als übergreifendes Steuerelement für das Skelettmodell nutzen zu können. Weitere Punkte des Vortrags behandeln die Auslegung und Simulation des Gehäuses und der Gesamtbaugruppe mit Creo Simulate 2.0. Anhand der Überprüfung des Verdrehwinkels an der Abtriebsseite infolge von elastischer Verformung der einzelnen Bauteile, zeigen die Stärken des Programms. Eine parallel zur Entwicklung laufende Simulation mit MDX bestätigte die in Mathcad errechneten Werte und lieferte so gleichzeitig eine Verifizierung der 3D-Daten. Referierende Person ist Herr Mirko Krimmel (interne Konstruktion in Petersberg).
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Ostiguy, Matthew James. "Experiment and Simulation of the Acoustic Signature of Fatigued-Cracked Gears in a Two-Stage Gearbox." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1328.

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This thesis focuses on the development of a health monitoring system for gearbox transmissions. This was accomplished by developing and understanding a two-stage gearbox computer model that emulates an actual gearbox test rig. The computer model contains actual gearbox geometry, flexible shafts, bearings, gear contact forces, input motor torque, output brake torque, and realistic gearbox imbalance. The gear contact force of each gear stage and the input bearing translational acceleration were the main outputs compared between a healthy gearbox and damaged gearbox computer model. The damage of focus was a fatigue crack on the input pinion gear. A sideband energy ratio comparison yielded the computer simulation accurately modeled the difference between a healthy and damaged gearbox. The next step in this study involved the development of a repeatable procedure to initiate and propagate a fatigue crack at the tooth root in an actual spur gear. A damaged spur gear allows for a future comparison of an actual healthy and damaged gearbox system in the lab. A custom fatigue fixture was designed and manufactured for a Martin S1224BS 1 spur gear. The fatigue crack was initiated by position control fatigue testing which deflects the gear tooth a set amplitude for a number of cycles. Over the length of the test, the load that the tooth can withstand in bending decreases as damage begins to occur. Once the max load on the gear has dropped by a significant percentage (5-15%) a crack has initiated and begun to propagate across the tooth face. The use of a scanning electron microscope confirmed the presence a fatigue crack.
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Books on the topic "Gearbox design"

1

Stokes, Alec. Manual gearbox design. Oxford: Butterworth-Heinemann, 1992.

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Ovtov, Vladimir. Machine parts. Course design. ru: 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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Anderson, R. D. Advanced propfan engine technology (APET) definition study, single and counter-rotation gearbox/pitch change mechanism design. [Washington, DC: National Aeronautics and Space Administration, 1987.

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V, Sundt C., McKibbon A. H, and United States. National Aeronautics and Space Administration., eds. Advanced gearbox technology: Advanced counter-rotating gearbox : detailed design report. [Washington, DC]: National Aeronautics and Space Administration, 1988.

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P, Townsend Dennis, Coy John C, United States. Army Aviation Systems Command., and United States. National Aeronautics and Space Administration., eds. Optimum design of a gearbox for low vibration. [Washington, DC: National Aeronautics and Space Administration, 1992.

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Service Training Team Audi of American. Audi 02e Direct Shift Gearbox: Design And Function. Bentley Pub, 2005.

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B, Oswald Fred, and United States. National Aeronautics and Space Administration., eds. Influence of gear design parameters on gearbox radiated noise. [Washington, D.C.]: National Aeronautics and Space Administration, 1994.

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B, Oswald Fred, and United States. National Aeronautics and Space Administration., eds. Influence of gear design parameters on gearbox radiated noise. [Washington, D.C.]: National Aeronautics and Space Administration, 1994.

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Vibration analysis of a split path gearbox. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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Vibration analysis of a split path gearbox. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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Book chapters on the topic "Gearbox design"

1

Jančar, Lukáš, Jiří Začal, and Zdeněk Folta. "Reverse Engineering of the Gearbox Case." In Current Methods of Construction Design, 79–87. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33146-7_9.

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Lovell, Nicholas. "The Core Loop and the Gearbox." In The Pyramid of Game Design, 61–72. Boca Raton: Taylor & Francis, CRC Press, [2018]: A K Peters/CRC Press, 2018. http://dx.doi.org/10.1201/9780429444630-4.

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Burián, M., M. Trochta, and J. Havlik. "HCR Gears in the Industrial Gearbox." In The Latest Methods of Construction Design, 7–14. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-22762-7_2.

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Dub, M., J. Kolar, F. Lopot, V. Dynybyl, and O. Berka. "Investigation of Tram Gearbox Hinge Behaviour." In The Latest Methods of Construction Design, 393–98. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-22762-7_58.

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Klouček, V. "Efficiency of Integrated Anti-Backlash Designed Planetary Gearbox." In Advances in Mechanisms Design, 137–42. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-5125-5_18.

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Weis, Peter, Milan Sapieta, and Peter Bezák. "Examining the Modal Characteristics of the Prestressed Gearbox." In Current Methods of Construction Design, 423–31. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33146-7_49.

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Tomeh, E. "Possibilities for Reducing Car Gearbox Vibration and Noise." In Advances in Mechanism Design II, 255–62. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-44087-3_33.

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Majchrák, Maroš, Róbert Kohár, Michal Lukáč, and Rudolf Skyba. "Creation of a Computational 2D Model of Harmonic Gearbox." In Current Methods of Construction Design, 95–103. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33146-7_11.

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Huang, Haijun, Bichao Yin, Chaowen Wang, and Haiyan Zhu. "Strength and Modal Analysis of High Speed EMU Gearbox Housing." In Advances in Mechanical Design, 223–28. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9941-2_19.

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Ivanov, K., M. Ceccarelli, G. Yestemessova, Y. Nurgizat, and G. Balbayev. "Design and Characterization of a Gearbox Joint for Manipulators." In Advances in Mechanism and Machine Science, 2261–68. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20131-9_223.

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Conference papers on the topic "Gearbox design"

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Heikkinen, Ari, Tapio Korpela, and Tatu Leinonen. "Feature-Based Gearbox Design." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/dac-3738.

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Abstract The Laboratory of Machine Design of the University of Oulu has defined and implemented a design and manufacturing system for a gear manufacturer in co-operation with the company’s own staff. The parts of gear train, such as shafts and gear wheels, are designed by an application program included in a two-dimensional system and the gear housing is designed by a commercial three-dimensional feature-based system. A shaft design and manufacturing system has been discussed in previous papers produced in connection with this project (Korpela, T., et al. 1995, Heikkinen, A., et al. 1996). The tool used for gear housing design and manufacturing have been tested during the past year, and experiences with this CAD system are recounted here. It has been found that the design features which implement the functional requirements of gear construction are different from the features which support the manufacturing processes.
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Rosso, Carlo, Giovanni Belingardi, and Vittorio Romagnoli. "Gearbox Paradigm: A Support for Quick and Effective Gearbox Design." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2019. http://dx.doi.org/10.4271/2019-01-0806.

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Perret-Liaudet, J., and J. Sabot. "Dynamics of a Truck Gearbox." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0031.

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Abstract This work is concerned with numerous numerical simulations of the overall dynamic behaviour of a parallel helical gear transmission. These results are compared to vibratory measurements made with a simplified gearbox test rig. The dynamic modeling of the elastic components of the gear transmission (gears, shafts, bearings, housing) is realized using the finite element method. Fluctuated gear mesh stiffness is introduced owing to stiffness matrix which describes the elastic coupling between the pinion and the wheel. The kinematic transmission error is introduced as a vibratory excitation source. The equations of motion are established in a truncated modal base deduced from the average characteristics of the structure. A new computing method, called “Spectral Method”, is used for analytical study of a simplified gearbox whose housing is a simple rectangular plate. The numerical results allows us to conclude on the dominent phenomenon of the overall dynamic behaviour of the gear transmission. They exhibit in particular the main characteristics of the transfer between the static transmission error and the vibratory response of the gearbox. A series of vibration measurements made on a gearbox close to that used for the numerical simulations, has confirmed this characteristics.
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Modaresahmadi, Sina, Casey Nichols, and Wesley Williams. "Mechanical Design of Magnetic Gearboxes Optimized for Assembly." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86878.

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Magnetic gearing is a developing technology that utilizes magnetic forces to transmit torque through a system. Unlike traditional gears that rely on teeth engagement to transmit motion and torque, interacting magnetic fields in a magnetic gear transfer the torque with no contact area required. Early magnetic gearbox designs stemmed from an electromagnetic design, however, at larger scales the assembly process as well as electromagnetic design drives the overall mechanical design, due to high magnetic forces and stresses during the assembly. The development of magnetic gearboxes involves the optimization of the assembly process, the electromagnetic design and the mechanical performance to achieve a design that is robust, efficient, manufacturable, and economical. Each of these attributes is necessary to advance the technical readiness for applications as varied as wind turbines or robotics. These qualities were sought in the design of two new magnetic gearboxes which have been manufactured and tested. The mechanical design of the multistage gearbox established a repeatable assembly process that could be upscaled without compromising the structural integrity of the components. Design variants were simulated and tested to limit bending and shear stresses in the gearbox, whilst maintaining the electromagnetic performance of the system. The mechanical design of the modular magnetic gearbox established a new rotor design where manufacturability and configurability were improved to make the gearbox ideal for applications that require varying gear ratios.
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Park, Youn, Dragi Gasevski, Marlow Springer, Milos Stanic, Viraj Kulkarni, and Dhiren Marjadi. "Simulation Driven Design Workflow for Aircraft Gearbox." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-15091.

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Abstract The aerospace industry is driven more than ever to reduce time and cost of developing aircrafts while reducing weight without compromising performance. This challenge cascades down to design of aircraft engines, where manufacturers are striving to deliver engines with higher fuel efficiency and power per unit weight. The challenge cascades down further to aerospace systems such as gearboxes. The focus of this paper is to addresses this challenge through application of model-based systems engineering and a design workflow based on simulation and optimization. A typical gearbox design starts with system level performance requirements such as power requirements, speed, torques and operating conditions. The goal is to design a minimum weight, manufacturable gearbox in the shortest possible time that meets the performance requirements. In this paper, authors present a design workflow developed for meeting this goal. The efficiency of the workflow presented here comes from the use of advanced simulation technologies, seamless integration of the workflow tasks, and modern and intuitive user experience. The proposed workflow focuses on design of housing and lubrication. This workflow is demonstrated on an aircraft engine accessories gearbox. Gear and bearing design are currently out of the scope of this paper and can be addressed in future work. Demonstrating a fully detailed workflow on a real-life gearbox housing with all the physics covered here would require many man-months of work and is outside the scope of authors’ IRAD funding. Instead, authors have presented a proof of concept of the workflow while providing key statistics to support the value and feasibility of the workflow.
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El-Saeidy, Fawzi M. A. "Effect of Backlash on Vibration Spectrum in Spur Gearboxes Incorporating Sleeve Bearings." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0244.

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Abstract An Analytical model is presented to simulate effect of tooth backlash on vibration spectrum of spur gearboxes incorporating sleeve bearings. Included in the model are: elasticity of shafts, friction between meshing teeth, interaction between gearbox casing and internals, and time-varying tooth backlash (backlash is a function of operating center distance), mesh stiffness (stiffness is calculated based on the strain energies of the tooth that is treated as a cantilever beam of involute shape) and Hertzian mesh damping. The bearing forces are calculated with consideration of bearing radial clearance and system vibrations. The analysis is applied to a single stage gearbox and equations of motion are numerically integrated to obtain system reponse in time domain. This response is transformed into frequency domain (vibration spectrum) using Fast Fourier Transform (FFT) algorithm and samples of the results are shown for different values of tooth backlash. The results show that backlash has a pronounced effect on gearbox vibration and study provides an analysis procedure for predicting such effects.
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Dörig, Bastian, Thorsten Ederer, Peter F. Pelz, Marc E. Pfetsch, and Jan Wolf. "GEARBOX DESIGN VIA MIXED-INTEGER PROGRAMMING." In VII European Congress on Computational Methods in Applied Sciences and Engineering. Athens: Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2016. http://dx.doi.org/10.7712/100016.2414.7601.

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Mehdi, K., and D. Play. "An Integrated Process for Gearbox Design." In ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium collocated with the ASME 1995 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/cie1995-0812.

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Abstract The design process of a mechanical product gathers generally different activities (conceptual study, mechanical analysis, drawing, documentation, manufacture and assembly). Many design systems based on traditional programming methods have been developed to assist the user to one or several of these activities. These programs suffer generally from the previously defined sequences, the inefficiency of the heuristic knowledge representation and the inaptitude of manipulation of symbolic informations. Thus, the success of such new design systems necessitates the combination of several types of knowledge (heuristic, symbolic, numeric, etc.). These knowledge are generally complementary and can come from different sources of knowledge. The state of the art is characterized therefore by the coupling or the integration of these sources of knowledge and to put them in a stand alone design system. This system also has to be opened to the integration and the acceptance of other sources of knowledge that will be able to be integrated later. This paper has for objective to show from a practical point of view the feasibility of a such integrated system with the example of an industrial gearbox design. This mechanical example is sufficiently complicated to be significant and to put in light the encountered advantages and difficulties. Results will be presented and the design methodology will be specifically discussed.
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Oswald, Fred B., James J. Zakrajsed, Dennis P. Townsend, William Atherton, and Hsiang Hsi Lin. "Effect of Operating Conditions on Gearbox Noise." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0085.

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Abstract Low-contact-ratio spur gears were tested in the NASA gear-noise rig to study the noise radiated from the top of the gearbox. The measured sound power from the gearbox top was obtained from a near-field acoustic intensity scan taken at 63 nodes just above the surface. The sound power was measured at a matrix of 45 operating speeds and torque levels. Results are presented in the form of a spectral speed map and as plots of sound power versus torque (at constant speed) and as sound power versus speed (at constant torque). Because of the presence of vibration modes, operating speed was found to have more impact on noise generation than torque level. A NASA gear dynamics code was used to compute the gear tooth dynamic overload at the same 45 operating conditions used for the experiment. Similar trends were found between the analytical results for dynamic tooth overload and experimental results for sound power. Dynamic analysis may be used to design high-quality gears with profile relief optimized for minimum dynamic load and noise.
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Giger, Urs, and Kiril Arnaudov. "Redesign of a Gearbox for 5MW Wind Turbines." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47492.

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Wind turbines with gearboxes must regain the highest possible reliability as fast as possible. This can occur with improved gearbox designs. Epicyclic gear drives with multiple planet gears would be technically correct to solve this torque transmission problem. A maximal compactness and lightweight construction is thus achieved. In order to also meet with the requirements regarding the increase of the rotational speed to a correspondingly efficient value of the generator, several coupled epicyclic trains are necessary. This technically demanding objective is sensibly solved by the proposed gearbox solution. The following article presents the patented new design [WO 2008/104258 A1] and determines it from a scientific standpoint.
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Reports on the topic "Gearbox design"

1

Keller, Jonathan, Yi Guo, Zhiwei Zhang, and Doug Lucas. Planetary Load Sharing in Three-Point Mounted Wind Turbine Gearboxes: A Design and Test Comparison. Office of Scientific and Technical Information (OSTI), April 2017. http://dx.doi.org/10.2172/1351159.

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