TY - JOUR

T1 - Self-excited and Forced Oscillations with Solid Friction

T2 - 2nd Report, Occurrence of Limit Cycles and Evaluation of Solutions in Case of Combined Friction-Velocity Characteristics

AU - Takano, Eisuke

AU - Kawaguti, Hidenobu

AU - Zhang, Xiang Yong

AU - Saeki, Masato

PY - 2001

Y1 - 2001

N2 - Forced frictional oscillations in a self-excited system occurred when the maximum static friction force did not become an isolation point and the kinetic friction force was given as a combined function of the relative sliding velocity composed of linear and hyperbolic functions. This process of oscillation was reviewed by the averaging method in continuation of the previous report. The properties of the limit cycle occurring where there was only one unstable first approximation solution of the harmonic oscillation with the values of the oscillation force circular frequency and the moving surface velocity are explained in this report. Various characteristics of the resultant stable, nonharmonic oscillations are also reviewed. By comparing results of the previous report with highly accurate, piecewise linear approximation solution, it was determined that this averaging method workes quite well and therefore is an effective method for judging the stability of the solution. It was learned that the highly accurate solution of the sliding motion could be estimated quantitatively by the stable first approximation solution using the averaging method. The unstable region in the first approximation solution corresponded with the occurrence region of the non-harmonic oscillations in the highly accurate solution. The solution by the averaging method showed the qualitative change of the amplitude.

AB - Forced frictional oscillations in a self-excited system occurred when the maximum static friction force did not become an isolation point and the kinetic friction force was given as a combined function of the relative sliding velocity composed of linear and hyperbolic functions. This process of oscillation was reviewed by the averaging method in continuation of the previous report. The properties of the limit cycle occurring where there was only one unstable first approximation solution of the harmonic oscillation with the values of the oscillation force circular frequency and the moving surface velocity are explained in this report. Various characteristics of the resultant stable, nonharmonic oscillations are also reviewed. By comparing results of the previous report with highly accurate, piecewise linear approximation solution, it was determined that this averaging method workes quite well and therefore is an effective method for judging the stability of the solution. It was learned that the highly accurate solution of the sliding motion could be estimated quantitatively by the stable first approximation solution using the averaging method. The unstable region in the first approximation solution corresponded with the occurrence region of the non-harmonic oscillations in the highly accurate solution. The solution by the averaging method showed the qualitative change of the amplitude.

KW - Averaging Method

KW - Forced Vibration

KW - Frictional Vibration

KW - Limit Cycle

KW - Mechanical Driving System

KW - Nonlinear Vibration

KW - Piecewise Linear System

KW - Self-excited Oscillation

KW - Sliding Friction

KW - Sliding Surface

KW - Vibration

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U2 - 10.1299/kikaic.67.1705

DO - 10.1299/kikaic.67.1705

M3 - Article

AN - SCOPUS:85024456038

SN - 0387-5024

VL - 67

SP - 1705

EP - 1711

JO - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

JF - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

IS - 658

ER -