In the paper , the fundamental equtions for vibration problem of circular plate in transverse magnetic field are derived and the vibration speciality of a circular plate fixedly supported at circumference is investigated 摘要给出了横向磁场中圆形薄板振动的基本方程，并对周边固支圆板的振动特性进行了分析。
According to several boundary conditions , the frequency equation of flexural circular plate is calculated . similarly some coefficients in the displacement distribution can also be acquired , which provide a preparation for further study 在求得频率的基础上，进一步求解了与之对应的归一化了的振形曲线系数，从而为后面的计算铺平了道路。
2 . to the circular plate working in axial symmetry vibration at resonant frequency , the equivalent mass in analytical form is derived , that ' s is , , and further , the equivalent compliance is obtained using the formula c = 1l 2 m 对于工作在谐振频率下做轴对称运动的阶梯圆板，采用解析法求得它的等效质量，并由c = 1 / ~ 2m求得等效弹性系数。
The compound transducer consisting of a longitudinal vibrator and a flexural circular plate combines the high energy and efficiency of the former and the low impendence and wide spreading scale of the latter 纵弯复合空气换能器由纵向振动夹心式换能器与弯曲振动薄圆盘组成，具有纵向振动换能器的高效大功率和弯曲振动圆盘的低辐射阻抗、大辐射面积等特点。
The article has applied the weighted residual method and laplace changing to analyze the plastic dynamic response of a simple circular plate , the influence of elastic foundation on it and drives its residual deflection and the terminal time 摘要应用加权残值法和拉普拉斯变换，分析弹性基础上简支圆板的塑性动力响应问题，弹性基础对薄板塑性动力响应的影响，并且给出板的残余挠度和终止运动时间。
Then , the principle and technique for temperature compensation are given when we use fbg as strain sensor . secondly , according to the pressure sensing principle , a novel pressure sensor based on circular plate diaphragm - equal strength cantilever is presented 其次,以光纤bragg光栅应变传感特性为基础,结合应变式压力传感器的设计方法,提出一种基于平膜片-等强度梁的光纤bragg光栅压力传感器的设计方案。
But to circular plate with large surface area , the vibrate modes generated is often so high that there is reverse phases existing , which result in a decrease in radiation impedance , electric - acoustic efficiency and the electric power , as well as poor directivity 然而对于辐射面积较大的弯曲振动圆盘，一般激励的振动阶数比较高，因此存在弯曲振动的反相区，导致换能器的辐射阻抗下降，电声效率和声功率降低以及指向性变差等问题。
After the nonlinear and absorption effect is taken into account in the applications where high power ultrasonic is involved , the first and second harmonic components of the sound field of stepped circular plate is analyzed , based on the kzk equation and quasi - linear condition 考虑到大功率超声应用中的非线性和吸收作用，本文从kzk方程和准线性条件出发，对于工作在共振频率下的这种阶梯圆盘，推导了它的一阶和二阶谐波声场计算方法。
Abstract : a previously proposed approximate quasi - static theoretical method is employed herein to examine the deformation and perforation of a simply - supported circular plate struck by a flat - faced projectile at normal incidence . based on the principle of virtual work , static load - displacement relationships are first obtained and then used to predict the energy - absorbing capacity of the plate subjected to relatively low speed impact . it is shown that good agreement is obtained between the theoretical predictions and the available experimental data , provided that adiabatic shear plugging failure does not occur , but the influence of strain rate sensitivity is taken into account 文摘:采用准静态近似理论方法分析简支圆板在平头弹丸正撞下的变形和穿透.首先基于虚功原理得到了静态荷载位移关系,并将其用于预测低速冲击下圆板的能量吸收能力.当考虑了材料的应变率敏感性,并且不发生绝热剪切冲塞破坏的前提下,理论预测和实验结果吻合良好
Jumping rules of an axisymmetric circular plate under combined temperature rise and lateral force are calculated by using ansys , the jumping process in terms of deflections of the central point of the plate and the relations between the critical deflection and critical temperature rise and the critical lateral force and critical temperature rise are obtained 摘要采用ansys程序计算了热力联合作用下圆板的轴对称跳跃规律，得到了用板中心挠度表示的跳跃过程和跳跃后临界挠度温升和临界横载温升关系。
