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The Diaphragm Spring Dynam Analyzing and Research of Micro-Car’s Clutch

Author: LiuAnZhen
Tutor: MoYiMin
School: Wuhan University of Technology
Course: Mechanical Manufacturing and Automation
Keywords: Diaphragm spring Leverage ratio Mini-cars Clutch Finite Element Analysis
CLC: U463.211
Type: Master's thesis
Year: 2008
Downloads: 325
Quote: 6
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Abstract


Clutch automotive driveline is directly connected with the engine assembly, and its main function is to cut and pass the driving force of the drive train to ensure that when the car started the engine and drivetrain engaged to ensure smooth car a smooth start; change gear when the engine and drivetrain separation, to reduce the impact between the transmission shifter gear; when subjected to large dynamic loads in the work, can limit the drive train which are subject to the maximum torque, to prevent various parts of the drive train is damaged due to overload ; Meanwhile, since the clutch to avoid the rigid connection of the engine and the gearbox, can effectively reduce the vibration and noise of the driveline. Therefore, the clutch during use, the failure rate is extremely high, the pressing force difficult Guadang main cause abnormal wear or heavy ablation as well as pedal force. The diaphragm spring is the most critical parts of the clutch, the working pressure of the clutch pedal force, pressure Increasing Process and separation itinerary are related to the diaphragm spring. Therefore, the study of the mechanical properties of the diaphragm spring on to find clutch failure causes and to propose optimization not only of theoretical significance, but also has a great practical interest. This paper focuses on three aspects: First, the working principle and structure of the clutch; Second, the establishment of the mathematical model of the diaphragm spring as well as theoretical; Third, the diaphragm spring load - deformation characteristics with diaphragm spring lever ratio and thickness Variation. First, the analysis of domestic and international development status of the clutch, and put forward the content, purpose and significance of this study. Secondly, the clutch works with structure, key components of the clutch in the clutch work, and asked the diaphragm spring clutch technology parameters. Then obtained a mathematical model of the clutch and the load - deformation characteristics analysis and derivation clutch calculated theoretical basis. By calculating the leverage ratio and the thickness of the diaphragm spring clutch diaphragm spring load - deformation characteristics proposed optimization program, matlab simulation on trends continue to optimize the direction. By theoretical calculation and finite element analysis, checking the stress state of the diaphragm spring. Finally, all the previous research, the overall macroscopic work Summary and Outlook. Proceed from the practical application of the height of the stand the idea of ??mathematical modeling and computer technology to provide a new way to find and optimize programs proposed for the reasons for the failure of the clutch, with important research and practical significance.

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CLC: > Transportation > Road transport > Automotive Engineering > Automotive structural components > Transmission > Mechanical transmission > Clutch
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