Abstract：The shock resistance research of large equipment for marine mainly uses numerical simulation method at present, but relevant tests are few, and how accuracy of numerical calculation can reach is uncertain. Therefore, the research has been done based on steam turbine for marine in this paper, first build the finite element model, then use time domain simulation method to calculate the response under shock loading; accord to the result, the frequency sweep and impact test have been done on the heavy shock-vibrostand. The comparison between calculated and experimental result have proved the correctness of calculation model and method, analyses the causes of error, and assess the structural strength. The research shows that: the calculation with time domain simulation method has about 30% errors which compared with the experimental results; combination of test and numerical calculation of the device can be a reasonable impact analysis.
2012, Vol. 31 
