Dissertation > Excellent graduate degree dissertation topics show

Research on the Accelerated Fatigue Test Method for Rubber Isolator

Author: ChenLu
Tutor: BaoYuMei
School: Zhejiang University of Technology
Course: Mechanical Design and Theory
Keywords: rubber isolator dynamic-static characteristics road load spectrum life prediction damage accelerated fatigue
CLC: TB535.1
Type: Master's thesis
Year: 2012
Downloads: 177
Quote: 1
Read: Download Dissertation

Abstract


Rubber isolators are widely used in automotive vibration isolation systems. Bench test under random load is the reliable method to prove fatigue strength of a rubber isolator. However, it needs a large number of time when putting the whole load data into test. Thus, how to decrease fatigue test period has great significance in shortening development cycle and saving fund. It’s also the hot research project in the automotive OEMs and parts suppliers.The contents of this dissertation are:(1) The solution of dynamic stiffness is displaced with that of static stiffness based on the analysis of dynamic-static characteristics of a rubber isolator, considering the difficulty in computing dynamic stiffness of a rubber isolator owing to the real-time variation of road load spectrum. And the relation of dynamic-static ratio is established experimentally for filled rubber material.(2) The method to predict the life of a rubber isolator is analyzed. The maximum principal strain is selected as an evaluation parameter. And the relation of strain-life is obtained experimentally for filled rubber material to make it possible to predict the life of a rubber isolator under different load cases.(3) According to the Miner linear cumulative rule and the damage equivalent principle, the method of editing accelerated fatigue test spectrum is studied and an engine mount (rubber isolator) is taken as an example to show the whole editing process. It is shown that the uniaxial accelerated spectrum edited with the proposed method is effective in uniaxial accelerated fatigue test of rubber isolator and the test time is cut down for 95.5%.(4) Considering the phase correlation of rubber isolator’s axial loads, the method to edit multiaxial accelerated fatigue test spectrum is studied primarily.

Related Dissertations

  1. Research on the Effects of Protection and Renovation of Apple Polyphenols on UVB-Induced HepG2 Cell Injury,S661.1
  2. Based on the tutor clinical experience in medical treatment of chronic kidney disease proteinuria,R277.5
  3. The Yishenhuoxue methods for the treatment of kidney stones extracorporeal shock wave lithotripsy of renal injury after clinical studies,R277.5
  4. The Study of Lead Exposure on Cyprinus Carpio Ovary Epithelial Cells,X174
  5. Study on the Occurrence, Damage and the Technology of Controling the Weeds in Direct-Seeding Rice Field of Huai Bei Area,S451.1
  6. Studies on the Characteristics of Japonica Rice Varieties Which Are the Most Widely Cultivated in Zhejiang Province,S511.22
  7. Studies on Changes of Quality Characters and Prediction Model of Postharvest Tomato Fruit,S641.2
  8. Rate-dependent Endochronic Damage Constitutive Model for Concrete,TU528
  9. Study on the Application Technique of Frequoscillation Pest-Killing Lamp in Vegetables,S436.3
  10. Blue-light Induced Changes of L-type Calcium Channel Subunit mRNA Expression and Free Calcium Ion of Human Retinal Pigment Epithelium Cells in Vitro,R774.1
  11. Protective Effects of Soy Saponins on Acute Alcohol-induced Liver Damage,R285.5
  12. Protective Action and Mechanism of GBE and Sulforaphen on the Apoptosis of Retinal Nerve Cells in Mice,R774.1
  13. Yiyiren protein extraction and its functional study,R285.5
  14. MG-132 to reduce intestinal ischemia -reperfusion liver injury : associated with AhR nuclear factor- κB signaling pathway and changes,R363
  15. Ultrasound evaluation of new technologies subclinical alcoholic cardiomyopathy damage the value of left ventricular function,R540.45
  16. Radiation induced DNA damage response in p53- dependent mutant protein promyelocytic leukemia (PML) on the regulation of p21 molecules,R733.71
  17. Ultrasound of new technologies on hyperthyroidism cause heart and liver damage evaluation,R581.1
  18. Cognitive dysfunction in diabetic rats and GFAP expression and insulin intervention impact,R749.2
  19. Acidizing technology in the Adaptability of Ansai Oilfield,TE39
  20. Study on Dynamic Response and Damage of Structures to Blasting Vibration Waves,TU311.3
  21. Infringement of the right to life caused by a third party damages System,D923.1

CLC: > Industrial Technology > General industrial technology > Acoustic engineering > Vibration, noise and its control > Vibration and noise control and its use > Vibration isolation, damping materials and structures
© 2012 www.DissertationTopic.Net  Mobile