纵向耦合振动

建立了柱形贮箱中液体与弹性体纵向耦合振动的一类动力学模型，并运用Bernouli积分及D′Alembert原理导出了相应的动力学方程。

A dynamical model of liquid in a columnar container coupled vertically to an elastic body was presented . Dynamical equations were derived by using Bernoulli integral and D ′ Alembert Principle .

论述纵向耦合振动（POGO）蓄压器的变频降幅特性，指出其主要影响因素是蓄压器容积及连接管路的液阻。

This paper discusses the characteristics of the frequency conversion and amplitude reduction for the POGO accumulator , And points out that the primary factor that affects the characteristics is the accumulator 's volume and liquid resistance of the joining pipeline .

高速柴油机曲轴扭转&纵向耦合振动的研究

Coupled torsional-axial vibration of the crankshaft for a high speed diesel engine

考虑土竖向波动效应的桩土纵向耦合振动理论

Study on Soil-Pile Interaction in Longitudinal Vibration Considering Vertical Wave Effect of Soil

内燃机轴系扭转&纵向耦合振动数学模型

The Mathematical Model for the Coupled Torsional-Axial Vibration of Internal Combustion Engine Shaft System

为了抑制运载火箭的纵向耦合振动，常在泵前安装液容器，但装在何处最好？

In order to suppress the longitudinal coupled oscillations of launch vehicle , the accumulator is generally mounted in front of the pump inlet .

本文提出了一种具有非线性刚度的弹簧一质量模型，用于计算内燃机轴系的扭转&纵向耦合振动。

This paper presents a new mathematical model for calculating the coupled torsional-axial vibration with non-linear stiffness for a lumped spring-mass shaft system of internal combustion engine .

在这一背景下，本文考虑了饱和土的三维波动效应，采用解析方法对三维轴对称成层饱和土中完整桩及各类变阻抗桩的纵向耦合振动理论进行系统研究。

Based on 3D axis-symmetrical soil model and the theory of saturated porous medium originally presented by Biot , an integral pile and pile with variable impedance embedded in layered saturated soil are analytically studied in this dissertation .

鉴于此，基于虚土桩法，本文采用解析的方法较系统地研究了均质地基、成层地基、径向非均质地基中弹性桩、粘弹性桩及大直径管桩的桩土纵向耦合振动问题。

Therefore , by means of fictitious soil pile method , this paper systematically investigates the dynamic response of elastic and viscoelastic pile and large diameter pipe pile , which are embedded in homogeneous foundation , layered foundation and radial inhomogeneous foundation .

本文给出的桩土纵向及扭转耦合振动理论考虑了桩周土三维波动效应及径向非均质，在理论上更严格，也更符合实际情况。

With the 3D wave effect of soil layer and the radial heterogeneousness of soil , the theory developed in this paper is more rigorous and reasonable in theory , and more reliable in application .

基于精确动态刚度矩阵法的内燃机轴系扭转、纵向及弯曲三维耦合振动研究

Study on the Coupled Torsional , Axial and Bending Three-Dimensional Vibrations of Internal Combustion Engine Shafting Basing on Exact Dynamic Stiffness Matrix Methods

根据汉弥尔顿原理和有限单元法，建立了全井钻柱纵向、横向扭转耦合振动动力学模型。

According to Hamilton 's principle and finite element method , the models for vertical , lateral and torsion coupled vibration of full-hole drilling strings were established .