A new integration method is proposed to simplify the strain rate vector inner-product by the mean value theorem in a cylindrical coordinate system.
提出以积分中值定理简化应变速率矢量内积的积分方法。
A linear integration of strain rate vector is developed.
该文开发了一种应变速率矢量的线性化积分方法。
First, effective strain rate for disk forging with bulge is expressed in terms of two-dimensional strain rate vector and its inner-product term by term integrated.
首先将有鼓形圆盘锻造等效应变速率表示成二维应变速率矢量,对该矢量的内积进行了逐项积分;其次,将逐项积分结果求和并证明了求和结果与传统直接积分法的塑性功率表达式相同;最后由速度场推导出圆盘锻造应力影响因子的解析解与相应的鼓形参数b的计算公式。
A note on the accurate expression of strain tensor;
关于壳体有限变形的准确应变张量表达式的一点注记
The influences of deformation and Poisson ratio on the volume ratio under different strain tensor descriptions are studied.
对不同应变张量描述下的体积比受变形程度及泊松比的影响进行了分析,结果表明:在La-grangian应变张量与Almansi应变张量及Eulerian应变张量描述下,假定泊松比不变,大变形时都会出现体积变化反常的现象;在对数应变张量描述下,当泊松比取值0。
The expressions of the Lagrangian-Green strain tensor and the Eulerian strain tensor and their work-conjugate stress tensors,namely,the second Piola-Kirchhoff stress tensor and Cauchy stress tensor,are derived for the beam under axial uniformly tension,and the constitutive relations of these two pairs of work-conjugate stress and strain measures are also presented.
推导了轴向均匀大变形等截面杆的Lagrangian-Green应变张量和Eulerian应变张量以及分别与它们能量共轭的第二类Piola-Kirchhoff应力张量和Cauchy应力张量的表达式,给出了这2对能量共轭的应力应变张量的本构关系式。
Inner-product of Strain Rate Vector in Spherical Coordinate for Wire Drawing
线材拉拔球坐标应变速率矢量场的内积
Frequency Control System of Slip-frequency phasor for AC Motor Speed control
交流变频调速的滑差频率矢量变频控制系统
Research on Vector Quantization for Linear Predictive Coefficients in Embedded Variable Bit Rate Speech Coding;
嵌入式变速率语音编码中线性预测系数的矢量量化研究
Study of Full Digital Induction Motor Speed-Sensorless Vector Control VVVF System;
感应电机全数字化无速度传感器矢量控制变频调速系统的研究
Research on Application of Matrix Converter Based on Space Vector Modulation to AC Induction Motor Drive;
基于空间矢量调制的矩阵变换器在交流调速系统中的应用研究
Research and Application on Vector Control Systems in Variable Speed and Constant Frequency Wind Power Generation Systems;
变速恒频风力发电系统中矢量控制系统的研究及应用
Study on Dual-PWM Vector Control Variable-Frequency System;
双PWM矢量控制变频调速系统的研究
Speed Sensorless Vector Control Three-level Inverter;
无速度传感器矢量控制三电平变频器
Research of the Vector Control System Based on the DSP
基于DSP的矢量变频调速系统的研究
A Vector Controlled(VC) Variable Frequency Hydraulic System
矢量变频液压容积节流调速系统研究
Speed Identification for Vector Control of Induction Mortor;
感应电机矢量控制系统中速度的识别
Fast and Adaptive Motion Vector Search
一种快速的自适应运动矢量搜索算法
Study of Speed Sensorless Vector-Controlled Servo Drives of IM;
无传感速度伺服矢量变频调速系统的研究
Performance Simulation of VC Variable Frequency Hydraulic Compound Speed Regulation System with High Inertia
大惯量矢量变频液压复合调速系统仿真研究
Vector miss distance measurement based on range and velocity target tracking
距离速度跟踪在矢量脱靶量测量中的应用
Research on Vector Control Systems in Variable Speed and Constant Frequency Wind Turbine;
变速恒频风力发电机组矢量控制技术的研究
Research on Speed Sensorless Vector Control of High Voltage Converter;
高压变频器无速度传感器矢量控制研究
The Study of SVPWM Vector Control of VVVF Based on the DSP;
基于DSP的SVPWM矢量控制变频调速系统的研究
