借助初参数法的思路，建立管两端位移、内力向量间的关系。

Based on the initial parameter method, a concise relation between displacement vector and force vector at both ends of the pipe is obtained.

youdao

本文以工程常见四端位移为零的振动板为例，提出一种新的压电式传感器的设计方法测量体积位移。

With a shown example of the pinned-pinned plate, a new piezoelectric sensor design is presented to measure volume displacement.

youdao

以工程常见四端位移为零的振动板为例，提出一种新的压电式传感器的设计方法测量第一阶声辐射模态伴随系数。

With the examples of the pinned-pinned plate, a new piezoelectric sensor design is presented to measure the first adjoint coefficient of radiation mode.

youdao