To investigate the impact resistance of centrifugal compressor containment assembly

numerical simulation of connecting bolts in specific compressor was conducted. Four modeling methods of bolts were established

simulation results and characteristics were discussed. Verification tests on high-speed spin tester were conducted. Results indicated that the Spider multi-point coupling model

tiebreak contact algorithm

beam-shell-discrete spring model took the advantage of high computing efficiency

but made large deviation in stress

strain and impacting loads. The solid model computed slowly but could describe the interaction of the bolts and holes

showing better agreement with the test.