大钟寺博物馆钟架的超声波无损检测

Ultrasonic Non-destructive Evaluation of the Wood Frame for the Great Bell

利用超声波技术现场测定北京大钟寺博物馆永乐大钟大型木结构钟架的弹性模量,并对其力学强度的变化做出了评估,找出相关规律,为超声波用于古建筑木结构的无损检测提供科学依据。

The modulus of elasticity (MOE) of the wood frame structure in the Beijing Yongle Great Bell Museum was determined, on site, by using ultrasonic nondestructive techniques.This paper can be used as a good reference for future studies applying the ultrasonic nondestructive evaluation method in ancient woodstructure buildings. 