Excessive vibration of complex structures in a multi-excitation environment is an arduous problem. Especially reciprocating compressor, how to quickly and accurately position the sources, analyze excitation features take effective solutions great significance safe stable operation compressor. In this paper, problem excessive air-cooled heat exchanger used variable speed CH4 compressor was studi...

By theoretically analyzing dynamic behavior of the crankshaft, the rolling piston and the blade inrolling-piston rotary compressors, constraint forces and sliding speed at each pair of movable machine elements were obtained, and unbalanced inertia forces and compressor vibrations were evaluated. It was concluded that theoretical results have a goodagreement with experimental ones. Moreover, it ...