摘要
根据一维波动方程推导了双截面应变测试法测试一维杆中任一截面的应变和质点速度方程以及顺波和逆波方程；并成功地将其用于钎杆接头动力特性的量测，得到了较长的入射波在短接杆中传播时遇到接头后的反射波以及能量反射率。
Based on one dimensional elastic equation, the identities are derived, in which the strain and particle velocity at any section are related to strain at two sections. And equations for waves travelling in the positive and negative directions are also derived. The method is used to test the dynamic characteristics of drill rod joints with success. The reflected wave from the joint when a long incident wave propagates in a short rod is obtained and other important parameters, such as energy reflectance, dissipation rate are calculated.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1996年第6期602-606,共5页
Journal of China Coal Society
基金
国家自然科学基金
煤炭科学基金
关键词
弹性波
应变量测
钎杆接头
接杆
凿岩
elastic wave, strain measurement, drill rod joint, dynamic characteristics
