Our theoretical analysis produces the dispersion curves of longitudinal modes of ultrasonic guided waves in liquid-filled pipes with viscoelastic coatings.
理论分析得到了带粘弹性包覆层充液管道中纵向模态的频散曲线。
Propagation characteristics of longitudinal modes in pipes filled with and without water were investigated theoretically.
对未充水和充水管道中纵向模态的传播特性进行了研究。
Contact treatment strategies of inverse analysis method in sheet metal stamping;
板料成形反向模拟法中的接触处理方法
For the shortcomings of geometry based initial solution methods for inverse analysis method in sheet stamping,a 3D mesh harmonic mapping algorithm based on energy theory is implemented.
针对目前在板料成形反向模拟法中常用到的初始域计算方法的缺点,提出采用一种基于弹簧系统能量理论的空间网格映射法。
Accurate design of sheet metal forming workblank based on forward and backward simulation;
基于正反向模拟的板料成形毛坯精确设计
The determination of node releasing criterion in three dimensional finite element backward simulation of blade precision forging;
叶片精锻三维有限元反向模拟脱模准则的确定
Based on the features of backward simulation, a novel algorithm was proposed, in which the right rectangular equation, i.
针对有限元反向模拟的特点,提出了采用右矩形公式作为近似积分的隐式欧拉方法来进行反向计算,有限元反向模拟新算法的过程跟已有算法相比,不需要几何搜索和迭代,节省了计算时间。
First backward simulation was made by using population parameter method to quickly get an approximate workblank,and then forward simulation was made by using incremental method to modify the workblank outline for the purpose of getting comparatively accurate outline dimension.
介绍了一种用于冲压毛坯设计的新方法——基于正、反向模拟的毛坯外形设计技术,即先用全量法进行反向模拟,快速得出近似的坯料,再用增量法进行正向模拟修正毛坯的外轮廓,从而得到比较精确的坯料尺寸。
EXPERIMENTAL RESEARCH ON LONGITUDINAL MODE SELECTION IN PIPES USING ANGLE BEAM PROBES
利用斜探头在管道中选取纵向模态的实验研究
Development of Magnetostrictive Transmitter and Receiver for Exciting Ultrasonic Longitudinal Guided Waves in Steel Strands
钢绞线中激励纵向模态的磁致伸缩型激励及接收器的选型
Asymptotic normality of estimators in semiparametric regression model for longitudinal data;
纵向数据下半参数模型估计的渐近正态性
Simulation on Dynamic Welding Longitudinal Stress-Strain Distribution
焊接纵向应力应变动态分布规律的数值模拟
longitudinal length extension vibration mode
纵向长度伸缩振动模式
To realize mode degeneracy its 1st torsional-vibration mode and its longitudinal-vibration mode caused by 1st radial-vibration are used in designing of this kind of motor.
其工作原理利用了一阶扭振动和一阶径向振动（引起的纵向振动）模态。
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
Test and Analysis of Attitude and Movement of Projectile in Bore
弹丸膛内姿态与纵向运动测试与分析
A Longitudinal Study of Mood States among College Seniors;
大学毕业班学生心境状态的纵向研究
Research on MIG welding arc with additional longitudinal alternating magnetic field
外加纵向磁场作用下的MIG焊电弧形态
Analysis of Longitudinal Seismic of Shield Tunnel with Longitudinal Equivalent Continuous Model
采用纵向等效连续化模型的盾构隧道纵向抗震分析
Mathematical Models of Tire-Longitudinal Road Adhesion and Their Use in the Study of Road Vehicle Dynamics
轮胎－路面纵向附着动力学数学模型
Numerical Simulation of Large-long Road Tunnels Using Longitudinal Ventilation System;
长大公路隧道纵向通风系统数值模拟
The Estimators and Tests of Variance Components in Longitudinal Data Model;
纵向数据模型方差分量的估计和检验
On Quasi-Vertical Integration Dynamic Ownership of Power Industry;
电力产业准纵向一体化产权模式研究
Estimation Method in Semiparametric Regression Model for Longitudinal Data;
纵向数据半参数回归模型的估计方法
Analysis of the Win-win Model for Vertical Integration;
企业纵向并购中双赢整合模式的研究
Joint Model for Longitudinal and Survival Data with a Cure Fraction;
含持久生存数据的一个纵向数据模型