NORMAL VIBRATIONS AND FRICTION UNDER HARMONIC LOADS .1. HERTZIAN CONTACTS

被引:115
作者
HESS, DP
SOOM, A
机构
[1] Department of Mechanical and Aerospace Engineering, University at Buffalo, Buffalo, NY
来源
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME | 1991年 / 113卷 / 01期
关键词
D O I
10.1115/1.2920607
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Nonlinear vibrations at a Hertzian contact are studied by the perturbation technique known as the method of multiple scales. The vibrations are excited by the dynamic component of an externally applied normal load. Solutions are obtained for both the average and instantaneous contact deflections. As a result of the nonlinear Hertzian stiffness, the average normal contact deflection during oscillations is smaller than the static deflection under the same average load. It is shown that this can result in a reduction of the average area of contact and, by implication, the average friction force in the presence of even small dynamic loads. The parametric dependence of the normal motion on the various contact parameters is investigated. It is shown that the maximum average friction reduction without contact loss is approximately ten percent.
引用
收藏
页码:80 / 86
页数:7
相关论文
共 14 条
[1]   NON-LINEAR FORCED OSCILLATION OF A BEAM COUPLED TO AN ACTUATOR VIA HERTZIAN CONTACT [J].
BRYANT, MD .
JOURNAL OF SOUND AND VIBRATION, 1985, 99 (03) :403-414
[2]   SURFACE CORRUGATIONS SPONTANEOUSLY GENERATED IN A ROLLING CONTACT DISC MACHINE [J].
CARSON, RM ;
JOHNSON, KL .
WEAR, 1971, 17 (01) :59-&
[3]   FLUID FILM DAMPING OF ROLLING CONTACT VIBRATIONS [J].
DAREING, DW ;
JOHNSON, KL .
JOURNAL OF MECHANICAL ENGINEERING SCIENCE, 1975, 17 (04) :214-218
[4]  
GODFREY D, 1967, ASLE TRANS, V10, P183
[5]   DYNAMIC-RESPONSE OF ELASTIC BODIES IN ROLLING CONTACT TO RANDOM ROUGHNESS OF THEIR SURFACES [J].
GRAY, GG ;
JOHNSON, KL .
JOURNAL OF SOUND AND VIBRATION, 1972, 22 (03) :323-&
[6]  
HESS DP, 1990, IN PRESS ASME
[7]  
Johnson K. L., 1987, CONTACT MECH, P45
[8]   CONTACT VIBRATIONS [J].
NAYAK, PR .
JOURNAL OF SOUND AND VIBRATION, 1972, 22 (03) :297-&
[9]  
Nayfeh A. H., 2008, NONLINEAR OSCIL
[10]   NORMAL DISPLACEMENT AND DYNAMIC FRICTION CHARACTERISTICS IN A STICK-SLIP PROCESS [J].
SAKAMOTO, T .
TRIBOLOGY INTERNATIONAL, 1987, 20 (01) :25-31