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Planar mechanism; joint clearance; simulation; kinematic performance

Simulation and study of joint clearances has usually focused on appropriate simulation strategies and their validation against experiments. The effect of joint clearances on the output of a mechanism has been usually evaluated qualitatively. The relative importance of different joints in a mechanism in producing deviation from the output of an ideal mechanism has not been studied. This work identifies the appropriate statistical measure for quantifying this deviation and uses it to rank the joints of one degree of freedom multi-loop planar mechanisms. The inversions of six-bar mechanism have been studied through ADAMS simulations involving different clearance sizes and speed of crank. A trend in clearance location ranking has been identified which canprobably be extended to planar mechanisms of higher complexity.

SHASHI ALOK¹ KAILASH CHAUDHARY² ANIRBAN GUHA¹

1. Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, India
2. Department of Mechanical Engineering, MBM Engineering College, JNVU Jodhpur, Jodhpur, India

Published

15 May 2020

Manuscript received

30 January 2019

Manuscript revised

10 February 2020

Accepted

19 February 2020