Journal of South China University of Technology (Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (5): 125-130.doi: 10.3969/j.issn.1000-565X.2013.05.020

• Automotive Engineering • Previous Articles     Next Articles

Calculation and Analysis of Natural Frequency Sensitivity for Accessory Drive System

Wang Hong-yun1 Zhao Ji-yong2 Shangguan Wen-bin1   

  1. 1.School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China;2.Shandong Meichen Science and Technology Co.,Ltd.,Zhucheng 262200,Shandong,China
  • Received:2012-11-09 Revised:2013-01-16 Online:2013-05-25 Published:2013-04-01
  • Contact: 王红云(1971-)，女，华南理工大学与山东美晨科技股份有限公司联合培养博士后，工作于广东技术师范学院，主要从事振动控制研究． E-mail:why_gd@163.com
  • About author:王红云(1971-)，女，华南理工大学与山东美晨科技股份有限公司联合培养博士后，工作于广东技术师范学院，主要从事振动控制研究．
  • Supported by:

    国家自然科学基金资助项目( 50975091)

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Abstract:

In order to carry out an optimal design of the dynamic characteristics for accessory drive systems,thenonlinear model of the accessory drive system is linearized via a coordinate transformation,with the equilibriumstate as the reference state.Then,the equations of natural frequency sensitivity to the design parameters of theaccessory drive system are derived via the complex modal analysis.Calculation results of the models before andafter the linearization show that the linearized model is feasible in analyzing the dynamic characteristics.Moreover,the relationships between the tensioner parameters,such as stiffness,installation angle and arm length,and thefirst-order natural frequency of the accessory drive system are investigated. The results indicate that the first-ordernatural frequency is of variable sensitivity to different tensioner parameters and different parameter values,especiallyto the arm length,and that decreasing the arm length is an effective way to reducing the first-order natural frequency.

Key words: accessory drive system, natural frequency, sensitivity, tensioner, kinetic model