New Method of Individual Modal Response Combination in Nuclear Power Plants

This paper introduced the recommended combination methods of individual modal response for nuclear power plant systems,structures and components（SSCs） defined in RG1.92 Rev.2.Also,this paper developed a new APDL macro of ANSYS based on the recommended combination method,and performed a piping example with this macro and compared the results with those obtained from CQC and DSUM methods.The results indicated that the macro this paper developed according to RG1.92 Rev.2 was reasonable.