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Abstract:
The
Dynamic characteristics of two spot welding robots model A and model B
are given out by the method of experimental modal analysis, and the
lower order of natural frequencies of these two robots under two typical
postures are obtained. Through the analysis of the modal characteristics
of the robots under two postures, relative weaker parts of the robots
are pointed out. It pointed out that the distribution of the mass and
stiffness of the robots should be matched, which have great influences
on the dynamic characteristics of the robots. The improving suggestion
for the two robots is put forward.
Key words:
Spot
welding robot Experimental modal analysis Dynamic
characteristic
CLC No: TG43
国家863计划项目，国家自然科学基金资助项目，清华大学智能技术与系统国家重点实验室高等学校实验室访问学者基金. Received 20001019,
received in revised form 20010228
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