Study of longitudinal vibration model of mine lifting container;
矿井提升容器纵向振动模型研究
Experimental study on longitudinal vibration characteristics of pendulum assembly in straight hole;
直井眼钟摆钻具纵向振动特性的实验研究
ANSYS-based finite element analysis method of longitudinal vibration of drilling string and its application;
基于ANSYS的钻柱纵向振动有限元分析及应用
In this paper,one-dimensional vertical vibration model of deep well drilling string is estabilished.
以深井中的整体钻柱为研究对象 ,建立了深井钻柱一维纵向振动分析模型 ,采用动力有限元理论建立了描述钻柱振动的动力学方程 ,并且编制了一套钻柱纵向振动分析软件 ,最后使用该软件对深井实用的钻具组合针对不同的工况进行了分析计算。
The partial differential equation analyzing the nonlinear vertical vibration of the pile was first derived.
假设嵌岩桩桩身材料满足非线性弹性和线性粘弹性本构关系,桩周土为有阻尼非线性弹性土体,从而导出了分析基桩非线性纵向振动的偏微分方程;用Galerkin方法对方程进行简化,对简化后的系统进行了数值模拟计算,得到了一种典型参数情形时基桩运动的时程曲线、相平面图、功率谱图、Poincare截面图及分叉混沌图,考察了各种材料及结构参数对基桩非线性纵向振动的影响。
Based on vertical vibration theory,assuming the segment above the defect is a rigid body,and the segment with the defect is a linear spring,an analysis method for the location and level of shallow defect is given.
本文采用振动理论,将浅部缺陷以上桩段假设为刚体,缺陷处的桩身假设为弹簧,通过对浅部缺陷桩的纵向振动分析,提出了一种利用频谱分析技术分析浅部缺陷位置和程度的方法,检测实例验证了该方法的正确性。
Analysis of the influence of drilling fluid on axial vibration of drill string;
钻井液对钻柱纵向振动影响分析
This paper presented the principle and method of calculation for the axial vibration based on Rayleigh differential method of crankshaft for a high speed diesel engine.
采用瑞利法对高速内燃机曲轴纵向振动进行研究。
The reliability mode and the safety probability of the random axial vibration systems of rods are defined as a series mode, a.
根据随机连续杆纵向振动系统的固有频率与激振频率差的绝对值不超过规定值的关系准则,定义了随机连续杆纵向振动系统的可靠性模式和系统的可靠度,提出了避免共振的频率可靠性分析方法,对随机连续系统共振问题的准失效分析方法进行了探索。
Test and Analysis of Axial Vibration Hypostatic Test Rig of The Ship’s Propelling Shafting
船舶推进轴系纵向振动模拟装置的振动测试与分析
The longitudinal vibration of shaft-line is very important in research of the sound radiated from the hull induced by propeller and shaft-line.
轴系的纵向振动在螺旋桨轴系激励艇体纵向振动声辐射问题分析中具有重要地位。
Research and Developing of Ship Shafting Alignment, Whirling and Longitudinal Vibration Calculation Software;
船舶轴系校中回旋和纵向振动集成计算软件开发研究
Design of dynamic vibration absorbers to reduce axial vibration of propelling shafts of submarines
基于动力吸振器的潜艇推进轴系轴向减振研究
Study on the Coupled Torsional, Axial and Bending Three-Dimensional Vibrations of Internal Combustion Engine Shafting Basing on Exact Dynamic Stiffness Matrix Methods;
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
Multiple-disk Rotor-Stator System s Vibrations Due to Axial Contacts;
多盘转静子系统轴向摩擦的振动分析
longitudinal length extension vibration mode
纵向长度伸缩振动模式
Torsional-longitudinal coupling vibration stability of drive system for locomotive
机车传动系统扭转与轮对纵向耦合振动稳定性
The Research of the Longitudinal Vibration in Cone Bits-rock System;
牙轮钻头与岩石互作用下系统纵向振动研究
The lateral vibration of a rotor/ bearing system influenced by axial contact between disk and stator are investigated by numerical simulation.
研究轴向摩擦对单跨双盘转子—轴承系统横向振动的影响。
torsional vibration of engine crankshaft
内燃机轴系扭转振动
electromagnetism dynamic triaxial test system
电磁振动三轴试验系统
Flexural vibration of a compound bar piezoelectric transducer
复合棒压电纵向振动换能器中的弯曲振动
Test and Analysis of a Dynamic Contact Process of Ultrasonic Feeding
超声振动输送的物料纵向振动过程测试与分析
Electromagnetic dynamic extruder axial rotation and vrbration characteristics of the relationship between research
电磁动态挤出机转动与轴向振动之间特性关系研究
The first records the arrival of longitudinal vibrations.
首先记录到的是纵向振动。
THE NATURAL CHARACTER ANALYSIS OF CANNON LONGITUDINAL VIBRATION
加农炮身管纵向振动的固有特征分析
The study on longitudinal vibration regulation of bolt in anchorage quality
锚杆在锚固状态下纵向振动规律研究