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弹性阻尼支承
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  “弹性阻尼支承”译为未确定词的双语例句
     DESIGN AND EXPERIMENTAL STUDY OF THE SOLID-MATERIAL FLEXIBLE DAMPED SUPPORT
     固体材料外弹性阻尼支承的设计与实验研究
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     A Method to Evaluate Optimum Parameters of External Elastic Damping Support
     一种估算外弹性阻尼支承最佳参数的方法
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     External elastic damping support, if designed reasonably, may obviously improve the natural or forced vibration response characteristics of bearing rotor systems.
     设计参数合理的外弹性阻尼支承可以明显改善轴承-转子系统的固有特性及强迫振动响应。
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     In order to reasonably interpret pile integrity test,the model of viscoelastic pile with variable sections in layered soils is established. When the pile is subjected to exciting force at its top,the viscoelastic supporting at its tip is taken into account . By means of Laplace transform and matrix theory,the semi-analytical solution of pile-soil systerm is derived.
     为了合理解释成层土中桩的完整性测试,建立了桩端为弹性阻尼支承、桩顶在任意荷载作用下粘弹性变截面桩与多层土共同作用的数学模型,并利用拉普拉斯变换和矩阵理论求得了该模型的振动半解析解,然后利用卷积定理和傅立叶逆变换求得瞬态半个正弦波作用下桩顶响应的振动半解析解。
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     Predetermine the Critical Speed of Rotor-Flexible Damped Support Systems by Subsystem Impedance. Analysis
     用子系统阻抗分析法确定转子-弹性阻尼支承系统的临界转速
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     Elastic boundary condition is considered.
     边界为弹性支承
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     Techniques for the Dynamic Test of the Flexible Damped Supports
     弹性阻尼支承动态特性分析与试验
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     Elastic edge is considered.
     边界可为弹性支承
短句来源
     Moreover,the vibration can be restrained effectively by the elasticity and damping of the flexible support.
     弹性支承弹性阻尼作用可以有效地抑制上述振动。
短句来源
     A Method to Evaluate Optimum Parameters of External Elastic Damping Support
     一种估算外弹性阻尼支承最佳参数的方法
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The flexible damped support-rotor systems have, in the recent years, been gradually adopted in the design of aeroengines instead of the earlyrigid support-rotor systems. The purposes of using the flexible damped support structure are to vary resonant frequency and diminish response of vibration.To this end, the parameters of the dynamic characteristics must provide a suitable conjugation between the support and the rotor. That will inevitably entail a great number of computations and tests. The mechanical impedance...

The flexible damped support-rotor systems have, in the recent years, been gradually adopted in the design of aeroengines instead of the earlyrigid support-rotor systems. The purposes of using the flexible damped support structure are to vary resonant frequency and diminish response of vibration.To this end, the parameters of the dynamic characteristics must provide a suitable conjugation between the support and the rotor. That will inevitably entail a great number of computations and tests. The mechanical impedance method is a very simple and effective means of predetermining the critical speed and the vibration damping characteristics of the rotor-flexible damped support system.This paper analyses the impedance method for the critical speed of the rotor support systems as studied abroad and presents a subsystem impedance method with supposed impedance values at the coupling points of the rotor and the support. It effectively resolves the problem of predetermining the critical speed of the rotor system with double flexible damped supports.This paper also presents a simple way to determine the resonant frequency by means of the curves.

近二十年来,航空燃气涡轮发动机转子系统的弹性支承设计已逐步取代了早期的刚性支承设计。采用弹性阻尼支承结构的目的是调频与减振。为此,支承与转子的动态特性参数必须有良好的匹配,这就需要进行大量的计算与试验。机械阻抗分析法是预示转子—弹性阻尼支承系统的临界转速及其减振特性的简便有效的手段。 本文在国外关于转子支承系统临界转速的阻抗分析法的基础上,提出转子在与支座交联点上假设阻抗的子系统阻抗分析法,有效地解决双弹性阻尼支承的转子系统临界转速的预示。 给出一系列交联点上的假设阻抗值,由转子子系统的频率方程求得转子子系统相应的共振频率特性。弹性阻尼支座的位移阻抗特性可由计算或试验确定。在平面直角座标系中,转子子系统与支座子系统的特性曲线交点,便是整个系统的共振频率。文中还提出了由曲线图确定共振频率的简易方法。

In this paper, a summary of the calculation methods for the flexible damped supports usually used in gasturbine aero-engines is given. The testing techniques for the dynamic behaviour of the flexible damped supports are developed.These are verified by tests and calculations of some models of the flexible damped supports.

本文论述了航空燃气涡轮发动机常用的弹性阻尼支承动态特性的分析计算方法,提出了测定弹性阻尼支承动态特性的试验方法。并通过模型实例的计算与试验作了验证。

The influence of nonlinearity of hydrodynamic oil film forces and bearing

本文为研究非线性油膜力和轴承外弹性阻尼对流体动压滑动轴承转子系统的振动特性的影响,按单圆盘挠性转子模型,建立了非线性运动方程式,并据此发展了一个RKP 程序.这个程序能够处理各向同性和不同性轴承外弹性阻尼的影响,又能处理可能施加于轴承上的多种外界干扰,并能适应从圆柱轴承到特殊孔形固定瓦轴承非线性油膜力的需要.文中介绍了利用这个程序计算已经得到的结果.结果显示有可能利用外弹性阻尼支承结构抑制系统振动,使系统能在通常意义下的“线性失稳”界限以上的转速下工作.

 
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