Dynamical Model Updating Based on Modal Tests with Changed Structure

• 作 者: 王轲 杨健
• 机 构: StateKeyLaboratoryofMechanicsandControlofMechanicalStructures
• 出 处: 南京航空航天大学学报：英文版
• 发表日期: 2014年1期
• 基金项目: Supported by the National High Technology Research and Development Program of China （＂863＂ Program） （2008AA12A205） , the Aeronautical Science Foundation of China （2012ZA52001）.

A new approach to modifying the stiffness and mass matrices of finite element models is presented to improve the calculation precision.By measuring the mode frequencies and shapes of both of the original and the new structures with changed stiffness and m