Dynamic Stiffness Matrix Method is applied to compute vibration of ship hull.
采用动态刚度阵法计算船体总振动的固有频率。
The bending-torsion coupling vibration of ship hull attracts more attention in recent years.
大开口船的弯扭耦合振动问题近年来愈来愈多地受到人们的重视。
In the paper the problem about the middle bearing vibration of ship shifting with misalignment is studied by the measures of numerical and physical simulation.
对船舶轴系非对中时中间轴承振动问题,通过数值模拟和物理模拟进行了研究。
Both the ship hull vibration and the local vibration of ship stern structures should be taken into consideration in the vibration problem of ship stern structures.
船舶尾部结构的振动问题应同时从船体总振动和尾部结构的局部振动两方面来考虑。
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。
This paper is based on it to realize the intelligentized data input of the ship vibration prediction by studying the digital of the ship drawing.
本文就是基于此目的,通过船舶设计图形的数字化研究,实现船舶振动预报数据输入的智能化。
It constructed the math model of the ship shafting transverse vibration and the lubricative capability calculation of stern tube bearing.
分别构建了船舶轴系横向振动和船舶尾管轴承润滑性能计算的数学模型。
The predictions of vibration and response of object ship structure obtained by using analysis and calculation method described in this paper have good consistency with real ship testing results.
本文采用的分析计算方法对目标船结构振动及响应预报值,与实船试验数据具有很好的一致性。
It is verified by means of model test that the ship vibration is caused by the propeller-excited force, which is generated by the propeller running in the non-uniform stern flow field.
并通过模型试验进一步证实该船振动的成因主要是由于螺旋桨在不均匀流场中运转时产生的激振力所致。
The reason of the difference between fullscale ship calculation result and readout of vibration platform test has also been analyzed.
同时分析了实船计算结果与振动平台试验值之间存在差别的原因。
As far as the issue of vibration isolating of ship, this paper studies the feedback control theory of hydraulic servo isolation mounting and sets up the theory model of two_stage isolation mounting.
针对舰船柴油机的振动隔离问题,本文对液压伺服隔振系统反馈控制理论进行了研究,建立了双层隔振系统的理论模型,用传递函数分析法推导出系统力传递率。
The influence of ship vibration on man machine environment, human body vibration model and responses are discussed.
阐述了船舶振动对人、机、环境的影响,讨论了人体振动模型及其振动反应。
Therefore, it is very significant to analyze noise and vibration problem of ship structures in the ship design stage.
因此,在船舶设计阶段就进行船舶结构的振动噪声分析是非常有意义的。
The first step confirmed the feasibility of the intelligentized data input software of ship vibration prediction.
初步证实了船艇振动预报数据智能化输入的可行性。
For some ship -lifting machinery room, the scheme of integral truss structure and the controlling measures against earthquake and wind vibration are presented.
结合某升船机工程,提出了机房整体网络结构方案及其抗振与抗风控制措施。
To control the vibration and noise in ship is always playing the important role in the theoretic and practical research of vibration isolation.
舰船的减振降噪在隔振理论和实践研究中始终占有举足轻重的地位。
The forced transverse vibration tests of a ship propeller shafting with a variety of propeller blades were carried out on a test bed.
本文论述了在试验台上进行的不同叶片数螺旋桨轴系横向受迫振动实验。
This paper describes in detail the vibration reducing means adopted at the design stage of a 15000 ton general cargo ship.
本文详细介绍了在15000吨干货船设计阶段所进行的减振设计工作。
So the study of vibration characteristic for ship structure is very necessary and important.
因此,对船舶结构振动特性的研究是非常必要的。
In this paper, the low noise design method of the ship is put forward, and the design process about the vibration and noise evaluation and control is established.
为了研究控制船舶机械噪声,提出了船舶低噪声设计方法,建立了全船振动噪声评估及控制方法的设计流程。
Experiment results indicate that there isn t much difference between experiment results and that of ship general vibration under ballast outbound condition calculated by transfer matrix method.
试验结果表明利用迁移矩阵法计算得到的压载出港条件下全船的振动结果与试验结果差距不大。
This paper introduces the calculating methods of diesel engine and propeller induced forces which often result trouble in ship hull steady vibration.
本文介绍引起船体稳态振动的柴油机及螺旋桨激振力的计算方法。
The effective wake is one of the primary reasons of propeller cavitation and induced ship hull vibration.
实效伴流的不均匀性是引起螺旋桨空泡、振动的主要原因之一。
The uniformity of propeller wake has close relationship to noise and vibration problems at ship stern.
艉迹流的均匀性与船艉振动与噪音问题有直接相关性。
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。
The invention provides a vibration isolation mass rigid vibration isolation structure for a bulkhead of a ship.
本发明提供的是一种舰船舱壁阻振质量刚性隔振结构。
The vibration of a cantilever beam on elastic support base is a common engineering problem. It is of important meaning to discuss the issue deeply for aviation, weapons, ship and many other aspects.
含有柔性基础的梁的振动是常见的工程问题,对该问题进行深入的讨论,在船舶、航空、兵器等诸多工程领域都有应用价值。
The paper predicts dynamic response of the aft-part vibration of an "A type ship", using the hydroelastic theory, by the means of the set of computational programs designed by the authors.
采用水弹性分析方法,利用自行开发的软件对某型船尾部振动响应进行了预报。对建模、附连水质量计算、激振力的确定等问题进行了探讨。
A simplified and efficient method was developed in order to analyze the vibration problem of axially compressed, imperfect ship plating.
本文采用简易高效的方法分析了受压缺陷船体板的振动问题。
A simplified and efficient method was developed in order to analyze the vibration problem of axially compressed, imperfect ship plating.
本文采用简易高效的方法分析了受压缺陷船体板的振动问题。
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