TY - JOUR
T1 - Effects of clearance joint on impact dynamic characteristics of planar mechanisms
AU - Wang, Xupeng
AU - Liu, Geng
AU - Ma, Shangjun
AU - Tong, Ruiting
AU - Xue, Yanmin
N1 - Publisher Copyright:
© 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.
PY - 2017/9/15
Y1 - 2017/9/15
N2 - Here, the effects of clearance joint on impact dynamic characteristics of planar mechanisms were studied. At first, a line-contact impact joint model with axial sizes was established. Based on an improved nonlinear normal impact force model and a modified tangential Coulomb friction force model, the effect laws of clearances on impact dynamic characteristics of a planar slider-crank mechanism were studied through analyzing slider acceleration, clearance joint's contact force, acceleration frequency spectra and velocity-acceleration phase diagram under different clearances. The results showed that the larger the clearance, the bigger the oscillation amplitude of the mechanism's dynamic characteristics, and the lower the oscillation frequency; the larger the clearance, the more nonlinear the mechanism's dynamic characteristics.
AB - Here, the effects of clearance joint on impact dynamic characteristics of planar mechanisms were studied. At first, a line-contact impact joint model with axial sizes was established. Based on an improved nonlinear normal impact force model and a modified tangential Coulomb friction force model, the effect laws of clearances on impact dynamic characteristics of a planar slider-crank mechanism were studied through analyzing slider acceleration, clearance joint's contact force, acceleration frequency spectra and velocity-acceleration phase diagram under different clearances. The results showed that the larger the clearance, the bigger the oscillation amplitude of the mechanism's dynamic characteristics, and the lower the oscillation frequency; the larger the clearance, the more nonlinear the mechanism's dynamic characteristics.
KW - Clearance joint
KW - Impact dynamics
KW - Nonlinear impact force model
UR - http://www.scopus.com/inward/record.url?scp=85034255448&partnerID=8YFLogxK
U2 - 10.13465/j.cnki.jvs.2017.17.012
DO - 10.13465/j.cnki.jvs.2017.17.012
M3 - 文章
AN - SCOPUS:85034255448
SN - 1000-3835
VL - 36
SP - 74
EP - 78
JO - Zhendong yu Chongji/Journal of Vibration and Shock
JF - Zhendong yu Chongji/Journal of Vibration and Shock
IS - 17
ER -