【摘要】 本文提出一种修改有限元模型的经验敏度方法，即根据结构固有振动参数的有限元计算结果和试验测试结果的比较和分析，选择并修改敏度单元特性（如单元的截面尺寸），用计算——修正——再计算——再修正的方法，使有限元模型逼近实际结构．更多还原

【Abstract】 In this dissertation,aexperience sensitive method of modifying finite element model is developed.The finite element calculation results of structure natural vibration and the test results of structure natural vibration are compared and analyzed.The sensitive elements are selected and modified.Through using method of calculation to modification to recalculation to remodification,the finite element model is nearer to the realized structure.更多还原