circular groove cracking test

This paper discusses the structure type and design features of GTH resistant ring type silencer with the view of ring type flow passage as the deformation of rectangular one.

本文以GJH型阻性环式消声器系列的结构型式和设计特点 ,就阻性环式消声器看作片式消声器通道截面由矩形向圆环形的变形 ,可通过不断增加吸声环数来适用风机各种风量大小的消声 ,并具有更好的流体状态和外形刚性、组装和运输更方便的特

Based on the principle of traveling wave ultrasonic motor and the results of the Finite Element Method analysis, a new kind of ring type traveling wave ultrasonic motor which is the smallest one in the same type in China has been designed and fabricated.

从行波超声波马达的工作原理出发,根据有限元的分析结果,设计并制作了一种目前国内同类马达中尺寸较小的环形行波马达样机,并测试了效率、扭矩、转速等主要性能参

Short-circuit current calculation for naval alternating current loop power network;

舰船交流环形电力网络短路电流计算

The annular supporting excavations increase with the popularizing of rotundas and sphere buildings.

随着圆形平面建筑物和球形建筑物的广泛使用,环形的基坑支护结构也日益增多。

The problem of finding strongly connected orientations (one way street assignment) for graphs,Specifically,the annular street graphs consisting of n 1 annular streets and n 2 avenues radiating from the center, which arise from annular streets of cities is studied.

本文研究由城市环形街道所引起的强连通定向（单行道设计）图的问题，即研究由ｎ１条环形道和从中心向外辐射的ｎ２条路组成的城市街道图。

The annular swirling jet is an important and unique kind of flow movement form.

环形旋转射流是一种重要而独特的流体运动形式,在工业生产中可以对粉尘和有害气体进行控制和处理。

However it can t be analysed when the resection point falls on the danger circle and the calculationprecision can t be guaranteed if the resection point falls in the ring area nearby the danger circle Areliability verifcartion method is plesented if the resection point falls on or in the danger circle or thenearby ring area and the related analystic methed is also given.

即使在危险园附近的环形面积范围内能够求解，其精度也是难以保证的。