ODabbr.外直径 （=outside diameter)ODBCabbr.[计] Open Database Connectivity；开放式数据库连接性[计]开放式数据库互接.

1. Based on the theory of modal superposition and power series expansion, a modal superposition method for the sensitivity analysis of FRF is proposed in this paper.
   基于模态展开和幂级数展开原理，提出了一种频响函数灵敏度分析的模态展开法。