Relevant bibliographies by topics / Diaphragm spring

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

Academic literature on the topic 'Diaphragm spring'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Diaphragm spring"

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Trotea, Mario, Augustin Constantinescu, and Loreta Simniceanu. "Analytical Calculation, Numerical Structural Analysis and Design Optimization of the Diaphragm Spring of a Mechanical Clutch." Applied Mechanics and Materials 896 (February 2020): 151–62. http://dx.doi.org/10.4028/www.scientific.net/amm.896.151.

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This paper considers the diaphragm spring of a mechanical clutch being composed by a conical disk spring and trapezoidal lamellar springs attached to the disk spring. After analytical calculation of the disk spring a numerical structural analysis was performed in order to validate the 3D model of the disk spring. A design optimization with 4 design variables was done for the disk spring and, based on the optimized design, the 3D model of the diaphragm spring was built. A 6 design variables model of the diaphragm spring was proposed for design optimization analysis having as design objective the minimization of the maximum equivalent stress during disengaging the clutch.
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Xu, Hai Hua, Yu Chun Ye, and Guang Fu Li. "Experimental Study on Shot Peening to Improve Diaphragm Spring Fatigue Life of Automobile Clutch." Advanced Materials Research 941-944 (June 2014): 1497–500. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.1497.

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In the modern automotive industry, diaphragm spring clutch is widely used in light-duty and mini cars. Its service life depends on the performance and quality of pressure element-diaphragm spring. Improving diaphragm spring fatigue life and reducing elastic force decay rate will extend service life of diaphragm spring clutch. By comparing the fatigue life through bench test, shot peening on diaphragm spring can observably improve working fatigue life.
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Dutta, Trinoy, and Lopamudra Baruah. "Engagement Model of Dry Friction Clutch with Diaphragm Spring." International Journal of Engineering Research 3, no. 11 (November 1, 2014): 704–10. http://dx.doi.org/10.17950/ijer/v3s11/1117.

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Hubbard, Mont. "Effects of Diaphragm Compliance on Spring-Diaphragm Pressure Regulator Dynamics." Journal of Dynamic Systems, Measurement, and Control 124, no. 2 (May 10, 2002): 290–96. http://dx.doi.org/10.1115/1.1470174.

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A dynamical model is derived for a spring-diaphragm type automotive pressure regulator containing an annular membrane. Previous studies have generally assumed that the diaphragm was of constant area and that it remained flat. Central features of the model presented are the calculation of the deformed shape of the annular diaphragm and the effects of its resulting fluid compliance and force on the drain orifice cover plate. Elasticity theory is used to derive the diaphragm two-port compliance relation that is integrated into an overall regulator dynamic model. Effects of diaphragm elastic modulus on system dynamic response are studied. The model and its results may be used in other design parameter studies and as a component of a fueling system dynamic model.
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Zhiming, Ye, and Yeh Kaiyuan. "A Study of Belleville Spring and Diaphragm Spring in Engineering." Journal of Applied Mechanics 57, no. 4 (December 1, 1990): 1026–31. http://dx.doi.org/10.1115/1.2897621.

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This paper deals with the static response of a Belleville spring and a diaphragm spring by using the finite rotation and large deflection theories of a beam and conical shell, and an experimental method as well. The authors propose new mechanical analysis mathematical models. The exact solution of a variable width cantilever beam is obtained. By using the integral equation method and the iterative method to solve the simplified equations and Reissner’s equations of finite rotation and large deflection of a conical shell, this paper has calculated a great number of numerical results. The properties of loads, strains, stresses and displacements, and the distribution rules of strains and stresses of diaphragm springs are investigated in detail by means of the experimental method. The unreasonableness of several assumptions in traditional theories and calculating method is pointed out.
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Guo, Cui Xia, and Hong Zhi Zhang. "Optimization Design for the Diaphragm Spring of Automobile Clutch." Advanced Materials Research 889-890 (February 2014): 268–71. http://dx.doi.org/10.4028/www.scientific.net/amr.889-890.268.

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The diaphragm spring is the key element in modern automobile clutch. Its elastic characteristic affects the overall performance of the clutch. Taking a car as an example, According to the design requirements and characteristics, it was to establish the mathematical model of optimum design of automobile clutch diaphragm spring. It was to optimize the design parameters of the basic structure of the diaphragm spring by using the MATLAB optimization toolbox. It did finite element analysis for the 3D modeling using ANSYS software. The results show that: it can be obtained more reasonably of the diaphragm spring elastic curve by the optimal design, shorten the design cycle, reduce the cost of.
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Wang, Ruo Ping, Guo Dong Zhang, Xiang Gao, and Chang Gao Xia. "Study on Probabilistic Optimal Design of Diaphragm Spring." Advanced Materials Research 148-149 (October 2010): 1057–61. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.1057.

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The mathematical model of probabilistic optimization is established for diaphragm spring. The process and the method of design with an example are presented. The result shows the model and the method of design are feasible, and perfect optimal result is attained. Vehicle has mass production and its conditions of use are changeable, which determine design parameters and operating parameters of its parts have complex randomness. Diaphragm spring clutch is now widely used by many kinds of vehicles. Research of diaphragm spring parameters’ probabilistic and statistics model and the study of its optimal design have great significance for the design, R & D, manufacturing and use of automotive products and parts. Studies in the references[1,2,3] have shown that the root cause of diaphragm spring’s fatigue fracture is the original crackles near the concave inner edge point, so there is a need to do probabilistic optimal design for diaphragm spring’s structural parameters to improve the fatigue life.
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Jin, Wei Dong. "Solid Modeling and Finite Element Analysis of Diaphragm Spring Clutch." Advanced Materials Research 452-453 (January 2012): 258–63. http://dx.doi.org/10.4028/www.scientific.net/amr.452-453.258.

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Taking a kind diaphragm spring of automobile clutch as an example, a finite element analysis based on ANSYS WORKBENCH was studied and explained in this paper. Stress and strain variation of diaphragm spring was obtained by using static analysis, and each modal, frequency and amplitude was all achieved by applying modal analysis. And the results may provide a theoretical reference to improving structure design of automotive diaphragm spring clutch
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Guo, Gui Mei, and Lin Hong. "Influences of Diaphragm Springs on Operation Performances of Sight-Stabilizing Mechanism." Advanced Materials Research 211-212 (February 2011): 384–88. http://dx.doi.org/10.4028/www.scientific.net/amr.211-212.384.

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Sight-stabilizing mechanisms controlled by diaphragm springs and other damping elements is an important subordinate system of airborne sight stabilizing System. The performances of sight-stabilizing system depend on the characteristics of kinematics and dynamics of the system in a great extent. Among various external moments acting on the rod of the manipulator, such as those moments caused by damper, positioning spring, and restoration spring, the forces by diaphragm springs are most obvious. According to the structure form and motion peculiarity, the rod can be equivalent to a rigid body turning around a fix point. Simulation results reveal that the moment of the restoration spring to the rod is proportional to the angular displacement, and that the moment is the most prominent factor influencing the operating performances among all these moments. Through reasonable adjustments of structural parameters of the restoration spring, the performances of the sight-stabilizing system can be improved greatly; the analysis method provides a basis for guiding the design of concerned structural parameters of sight-stabilizing system.
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Afshar, Behrad Habib, and Michel J. F. Digonnet. "Spring-Loaded Diaphragm-Based Fiber Acoustic Sensor." Journal of Lightwave Technology 37, no. 18 (September 15, 2019): 4830–37. http://dx.doi.org/10.1109/jlt.2019.2923369.

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Dissertations / Theses on the topic "Diaphragm spring"

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Nilsson, Linus. "Real-time simulation of diaphragm displacement during physiological and mechanical ventilation." Thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-202329.

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This thesis presents a tunable 3D real-time interactive simulator of the geometrical displacement of the thoracic diaphragm during physiological and mechanical ventilation. Particular attention is placed on capturing the heterogeneous tissue composition while maintaining computational efficiency and accuracy. The long term goal is to establish an accurate theoretical model to complement the experimental and clinical studies of the side effects associated with mechanical ventilation and to overcome the ethical difficulties of performing time resolved studies on human patients. The deformations are modelled using a commercial 3D model and a mass-spring model together with distance constraints and Verlet integration. The simulator is easily adjusted in real-time to many different cases of ventilation and validated through inspection and comparison with existing models. More research is needed to validate the model using patient specific data, as well as extending the model to include additional physiological and pathophysiological components. Long term goals includes considering the microscopic aspects of cellular mechanics to capture the underlying causes of ventilator-induced diaphragmatic dysfunction.
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Hedrich, Philipp, Maik Johe, and Peter F. Pelz. "Design and Realization of an Adjustable Fluid Powered Piston for an Active Air Spring." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-199924.

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In this paper, we present a new compact hydraulic linear actuator. The concept is developed to change the rolling piston diameter of an active air spring during usage. By doing so, the air spring can actively apply pressure and tension forces. The actuator is designed for small movements at high forces. It is insensitive to side forces, which are introduced by the bellows rolling on the rolling piston of the air spring. A diaphragm sealing is used to minimize friction. Hence a precise adjustment of small displacements at high dynamics is possible and the system is completely leakage-free. We describe the design and development of this actuator and show first measurement results from preliminary tests to show its functionality.
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Sharef, Hajan, and Marek Potari. "Koncept på ett hydrauliskt mothåll." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-12141.

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New technology in the automotive industry is the key to success. Therefore, it is appreciated when people come with new design ways to solve problems. This leads to innovation in the automotive industry that will lead to better and more environmentally friendly cars. This report presents a concept on a pushing counter lever spring which provides the same characteristics of force curve as a diaphragm spring in a pressure plate of a car has. The mechanism is to be used for long-term testing and evaluating clutch pedals. The work describes the development process and the manufacture of a prototype. The program Creo (CAD / 3D) is largely used to construct the components. As are the subprograms Mechanism Design and Simulate to simulate the movement and loads. Excel is a great help at the theoretical calculation of the mechanism and to evaluate the theory behind the concept. The result shows how to simulate a diaphragm spring in the pressure plate in a car for long-term testing of clutch pedals. The goal is to accurately mimic the force curve of a diaphragm spring, in order to design better pedals, and thus reduce the weight on the pedals to in turn reduce fuel consumption to protect the environment is one of the most important factors of all in the automotive industry.
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Guo, Syuan-Wei, and 郭軒維. "Measuring the equivalent spring constant of the diaphragm by acoustic impedance and electrical impedance method." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/55zuj2.

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碩士
國立臺灣大學
工程科學及海洋工程學研究所
107
Moving-coil earphone is an integration of electrical, mechanical and acoustical system. Its performance is determined by the collaboration of these systems. Mechanical system converts electrical energy to acoustical energy, and diaphragm system, which composed of diaphragm and diaphragm rim is part of it. At low frequency, mechanical system can be simulated by an equivalent mass-spring-damper system. The equivalent mass, spring constant, and damping coefficient determine the performance of mechanical system at this frequency range. However, the equivalent spring constant of diaphragm system cannot be known before the earphone is assembled. Therefore, in this research, acoustic and electrical impedance method are adopted to determine the equivalent spring constant of the diaphragm system. In acoustic impedance method, the specific acoustic impedance of diaphragm system with an air-backed cavity was measured, and through curve fitting, the equivalent spring constant can be obtained. In electrical impedance method, the resonant frequency of system comprising of loudspeaker, cavity, and diaphragm system was measured, and by iteration, the equivalent stiffness value can be acquired. It can be shown from the result that the equivalent spring constant measured by the respective method are close in the order of magnitude and these two methods are feasible.
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Books on the topic "Diaphragm spring"

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Wohlbier, Thomas. Metallic Glasses and Their Composites. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901014.

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Metallic glasses and their crystal/glass composites find ever more applications in such fields as mini transformers, microelectromechanical devices, pressure sensors, precision surgical instruments, biological implants and sportive goods (springs, diaphragms, membranes, knife blades, electromagnetic wave shields, optical mirrors, power inductors, Coriolis flow meters, etc.). The book reviews recent research and suggests future developments, e.g. in the area of dual-phase composite/hybrid materials.
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Book chapters on the topic "Diaphragm spring"

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Shao, Chen, Xue Bin Wu, Xin Zhang, and Hong Wei Chen. "Study on Dynamic Torque PID Control for Automobile Diaphragm Spring Clutch Based on Kalman Filter." In Lecture Notes in Electrical Engineering, 487–97. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3527-2_41.

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Dravid, Shriram, Jitendra Yadav, Santosh Kumar Kurre, Adesh Kumar, and Roushan Kumar. "Experimental Evaluation of the Performance of Diaphragm Spring Clutch of a Four-Stroke Multi-cylinder Petrol Engine Under Dry Friction Conditions." In Advances in Intelligent Systems and Computing, 313–20. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1510-8_31.

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Arndt, T. "Diaphragma." In Springer Reference Medizin, 693. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-48986-4_878.

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Bährle-Rapp, Marina. "Diaphragma." In Springer Lexikon Kosmetik und Körperpflege, 152. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_2857.

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Zhang, Yufen, and Degang Guo. "External Diaphragm Joints to Steel Beams." In Springer Tracts in Civil Engineering, 141–77. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8089-5_7.

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Kelly, Aine M., and Thomas Frauenfelder. "Diseases of the Chest Wall, Pleura, and Diaphragm." In IDKD Springer Series, 95–106. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-11149-6_9.

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Ghosh, Basudeb, Sachendra N. Sinha, and M. V. Kartikeyan. "Fractal Frequency Selective Diaphragms in Rectangular Waveguide." In Springer Series in Optical Sciences, 61–94. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06535-9_3.

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Li, A. J., and H. D. Lin. "Analyses of Ground Response Induced by Diaphragm Wall Installation." In Springer Series in Geomechanics and Geoengineering, 583–91. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-6632-0_45.

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Majeed, Ameen, and P. Ramesh. "Fabrication of MEMS Capacitive Pressure Sensor (MCPS) with Segmented Bossed Diaphragm." In Springer Proceedings in Physics, 657–64. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-97604-4_101.

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Schneider, Nikolaus. "The Joint Inspector - A New Method of Quality Control for Diaphragm Walls." In Springer Series in Geomechanics and Geoengineering, 1009–12. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97115-5_27.

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Conference papers on the topic "Diaphragm spring"

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Velardocchia, M., G. Ercole, G. Mattiazzo, S. Mauro, and F. Amisano. "Diaphragm Spring Clutch Dynamic Characteristic Test Bench." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1999. http://dx.doi.org/10.4271/1999-01-0737.

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Zhao Li-jun, Liu Tao, and Song Bao-yu. "Optimum design of automobile diaphragm spring clutch." In 2008 IEEE Vehicle Power and Propulsion Conference (VPPC). IEEE, 2008. http://dx.doi.org/10.1109/vppc.2008.4677711.

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Qi, Yingxia, Yinong Wu, Hua Zhang, and Xi Chen. "Simulation of Deformation of Diaphragm Spring Grooved With Spiral Slits by FE Method." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86371.

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Flexible bearing system composed of diaphragm springs are a key component part of miniature Stirling cooler with linear motors. The stress distribution, the natural frequency, and visualization of the deformation of the diaphragm spring are investigated by finite Element method. From the calculation results of deformation pattern, it is confirmed that the calculation models and methods are appropriate. The stress calculation results reveal that the stress concentrations occur in some special parts of the diaphragm spring, such as root, and middle narrowest parts of the arms. The axial stiffness has the linear relation while the radial stiffness has the non-linear but hyperbolic relation with the disc thickness. The calculation results are in good agreement with the experimental results. The calculation results have been used to optimize the shapes of the diaphragm spring and manufacturing process.
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Ercole, G., G. Mattiazzo, S. Mauro, M. Velardocchia, F. Amisano, and G. Serra. "Experimental Methodologies To Determine Diaphragm Spring Clutch Characteristics." In SAE 2000 World Congress. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2000. http://dx.doi.org/10.4271/2000-01-1151.

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Guo, Xiuli, and Huaimin Lu. "Optimal Design on Diaphragm Spring of Automobile Clutch." In 2009 Second International Conference on Intelligent Computation Technology and Automation. IEEE, 2009. http://dx.doi.org/10.1109/icicta.2009.516.

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Mattiazzo, G., S. Mauro, M. Velardocchia, F. Amisano, G. Serra, and G. Ercole. "Measurement of Torque Transmissibility in Diaphragm Spring Clutch." In SAE 2002 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2002. http://dx.doi.org/10.4271/2002-01-0934.

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Anderson, James H., Chuck Hildebrand, and James H. Anderson. "An Effective Way for Maintenance Reduction and Vibration Elimination of Peaking Gas Turbines." In ASME 2006 Power Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/power2006-88116.

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A US power generation company had 36 similar high heat rate gas turbines in two of their plants. These units were used for peaking power in a large metropolitan area. On two of these units in the early 1990’s they tried switching from lubricated, gear-type couplings to single, machined diaphragm-type couplings for reduction of maintenance and improved flexibility. The gear couplings also caused a great deal of vibrations during startup, and many times units were shut down because of excessive vibrations. Due to the extreme thermal growth of these applications, along with the stop-start nature of the application, the couplings were required to handle enormous amounts of misalignment. While the standard diaphragm couplings seemed like a good choice for the application because of their large misalignment capability, they proved to be unable to handle the excessive offset movements caused by thermal growth. The problem with the standard diaphragm was that it was too stiff or in other words, the spring rate was too high. In one case the coupling failed catastrophically very quickly under normal running conditions. In the mid 1990’s the power company tried a different, unique style of diaphragm couplings that used multiple diaphragms with holes in them. The diaphragms were made of thin, uniform thickness steel instead of the more common machined ‘profile’ diaphragms. Because of the holes, these new diaphragms provided much more misalignment capability, and they also had far lower spring rates than the previous diaphragm couplings. The lower spring rates caused an enormous reduction in reactionary forces from the coupling, and they also eliminated many vibration problems caused by the original gear couplings. The overall effect of this discovery was for the company to begin changing all similar units to this type of coupling. Now these 36 units which previously had severe vibration problems during startup, run very reliably. They have also eliminated the need for maintenance, which was an issue with the original gear couplings.
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Yong-hai, Wu. "Multi-Objective Optimization Design of Vehicle Clutch Diaphragm Spring." In 2009 Second International Conference on Intelligent Computation Technology and Automation. IEEE, 2009. http://dx.doi.org/10.1109/icicta.2009.513.

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(John) Willyard, J. J. "Heavy Duty, Large Single Plate Diaphragm Spring, Dry Clutches." In SAE International Truck and Bus Meeting and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1989. http://dx.doi.org/10.4271/892476.

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Karaduman, Alper, Huseyin Lekesiz, and Ali Yildiz. "Release Bearing Characteristic of Diaphragm Spring under Dynamical Condition." In Asia-Pacific Automotive Engineering Conference. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2019. http://dx.doi.org/10.4271/2019-01-1424.

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