自振

Designed the control system of self-oscillation cleaning bag filter.

设计了自振清灰式柴油机电控微粒袋滤系统。

The energy method is applied to derive the natural vibration frequency and mode shape for a simply supported beam and simply supported plate before and after damage.

利用能量法近似地得出了损伤前和损伤后简支梁和四边简支板的自振频率和振动模态。

According to the chimney on the top, the absorber tower may have two kinds of outlines: low tower and high tower.There is not any specific standard concerning the design of the absorber tower.

现阶段对于吸收塔结构设计中存在的主要问题是：(1)风荷载计算中，结构基本自振周期如何取值；(2)地震荷载计算中，如何考虑局部的反应，以及局部反应对结构受力的影响；(3)塔壁厚度设计中，如何考虑壁板的稳定应力。

High pressure water jet is a new kind of technology used for cleaning and cutting developed in recent twenty years with self-resonating cavitating water jet being one of the most advanced and efficient.

自振空化射流是近年来发展起来的一种新型高效射流，用这种射流处理炮孔和近井地层的研究在国内外还是空白。

A new type of self-resonating cavitating jet nozzle has been developed through the improve-ment of organ-pipe nozzle.

根据现场试验中所出现的问题，对风琴管脉冲喷嘴进行了改进，得到了一种新型自振空化脉冲喷嘴。

The study result indicated that the free vibration of the dam will be affect by opened hollow and pier added on dam.

研究表明考虑孔口和闸墩对大坝的自振特性有一定的影响。

The formula calculating the first frequence of the bridge with the pile foundation is derived by using the Rayleigh Principle.

用Rayleigh法推导了桩基桥梁的第一自振频率的近似计算公式；在动力学效的原则下建立了桩—上—上部结构体系的等代简化模型，导出了动力等效嵌固深度l〓的计算公式，并与静力等效嵌固长度Z〓的计算公式进行对比分析，给出了静力公式的误差范围。

This paper presents a method used for calculating the natural frequency of gases subjected by small pressure pulsations in pipe systems.

本文介绍一种用以计算微压扰动下管道中气柱自振频率的方法。

The finite element model of the hybrid spatial structure system is built by the beam elements,truss elements and cable elements,its dynamics characteristics and the influence of some parameters are analyzed thoroughly here by the block Lanczos method,and then the computed re...

选用梁元、杆元和索元的混合有限元模型，采用分块Lanczos法，对凯威特型索承网壳结构的自振特性及其影响因素进行了系统分析研究，并与单层网壳结构进行比较，得出了可用于工程实践的结论，对其抗震、抗风性能分析研究以及工程应用有参考价值。

By parameter(tower total height, shell thickness, meridional curvature) analysis of cooling-tower natural frequency, we find that, the basic natural frequency of cooling tower is sensitive to the top meridional curvature, an approximate formula is proposed based on the parameters, which can estimate the basic natural frequency of cooling tower.

通过对冷却塔自振频率的参数分析，如塔体整高、塔壳厚度、子午线曲率等，发现基础频率对上部子午线曲率较为敏感，并给出了用于估算大型双曲冷却塔基础频率的三参数公式。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。