Development of Monitoring Method of Foreign Object Impact and Impact Damages in CFRP Structures Using Radiated Sounds

在目前的研究中，实时和非接触识别的位置和历史的冲击力作用在航天CFRP结构上的使用发生在冲击辐射声的方法。根据识别的力历史，提出了一种实时估计CFRP结构冲击损伤发生和程度的方法。也就是说，位置和力的历史被识别从辐射声测量麦克风，和监测方法来估计的冲击损伤也被开发。通过CFRP层合板和CFRP夹芯板的算例验证了该方法的有效性。

In the present research, a real-time and non-contact identification method of the location and the history of the impact force acting on the aerospace CFRP structures is developed using radiated sounds occurring at the impact. The real-time method to estimate the occurrence and the extent of the impact damage in the CFRP structures is also developed from the identified force history. That is, the location and the force history are identified from the radiated sounds measured with microphones, and the monitoring method to estimate the impact damage is also developed. The validity of the present method is verified through the application to CFRP laminated plates and CFRP sandwich panels.