比较了建筑三维模型和二维模型用于振动计算的区别。
It is also compared that the difference between three-dimension and two-dimension model of building in vibration analysis.
本文论述了车桥及车轨时变系统横向振动计算中存在的根本问题。
In this paper, the fundamental problems in the calculation of transverse vibration of train bridge and train track time varying system are expounded.
本文建立了大型船舶柴油机推进轴系纵扭耦合振动计算的系统矩阵模型。
In this paper, a theoretical model based on system matrix method for calculating coupled axial and torsional vibration of large Marine diesel propulsion shafting is established.
本文给出了从边界条件着手考虑叶根柔度影响的汽轮机叶片组的振动计算方法。
A calculation method for blade group vibration is presented starting with boundary assumptions to take care of the influence of root flexibility.
文中叙述了转鼓的强度计算、振动计算、减振设计、锥角与过滤介质的选用等。
The authors deal with the calculating of the strength and vibration, the design of vibration absorption, the select of the taper and the filtrating medium, etc.
对柴油机轴系扭振的研究，以往是先建立扭振当量系统，然后进行自由振动与强制振动计算。
In the previous research on torsional. vibration of diesel engine shafting system, an equivalent system must be defined before calculating free vibration and forced vibration.
对侧装式调节级动叶的强度振动计算分析及其应用范围进行了介绍 ，并对部分进汽时进汽喷嘴的布置方法提出了建议。
The vibrational stress analysis and the application range of the side entry blade are introduced in this paper, and the suggestion of the nozzle arrangement is also given.
针对轴流式水轮发电机组在运行不长时间后，叶片出现大量有规律分布裂纹的缺陷，用有限元法对叶片进行了强度和振动计算；
This paper deals with a lot of crack failures in blades of axial_flow hydraulic turbine in operating, and calculated their strength and vibration characteristic by the finite element method.
国内外在列车-轨道时变系统横向振动计算中，大多采用轨道横向不平顺作为列车-桥梁(轨道)时变系统横向振动的激振源。
The transverse track irregularity is mostly treated as the exciting source of transverse vibration of train-bridge (or track) time-varying system at home and abroad.
对大型复杂结构振动有限元模型进行减缩降阶，是使结构有限元模型可有效地用在结构动力分析和振动计算方面的一个重要措施。
Reducing the order of a large structural finite element model is important in improving the efficiency of finite element analysis in the field of structural dynamics and vibration.
本文从这一基本认识出发，利用有限元法编制了船舶尾部结构振动计算程序，并以实船为对象进行了尾部结构振动的计算，取得了较好的效果。
Based on this point of view, a computer program to calculate the vibration of ship stern structures by using finite element method (FEM) is developed, and a sample problem is worked in this paper.
本文结合船舶结构振动计算的特点，把SAP-5程序的行列式搜索法加以推广，设计出能处理和判别刚体模态、能从任意谐调频率开始计算的行列式搜索法。
Considering certain special characteristics in the vibration analysis of ship hull or offshore platform structure, an improved determinant search method is presented for the SAP-5 program.
本文结合船舶结构振动计算的特点，把SAP-5程序的行列式搜索法加以推广，设计出能处理和判别刚体模态、能从任意谐调频率开始计算的行列式搜索法。
Considering certain special characteristics in the vibration analysis of ship hull or offshore platform structure, an improved determinant search method is presented for the SAP-5 program.
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