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Virtual Parallel Machine 虚拟并行机
Parallel Virtual Machine (PVM) is a software package that permits a heterogeneous collection of cluster computers" to function as a single high-performance parallel machine. 并行虚拟机(PVM)是一个可以将异构的“机群计算机”集合当成一台高性能并行机的软件包。
Based on virtual prototype technology(VPT),the simulation model of 3-UPS parallel machine tool has been modeled and the simulation scheme has been planed. 以3-UPS并联机床为研究对象,应用虚拟样机技术建立了机构参数化仿真模型,给出了并联机床虚拟样机联合仿真设计方案。
Parallel machine tool is an important developing aspect of NC structure. 并联机床是数控机床机构进化的一个重要方面。
The results of analysis show that the workspace of parallel machine tools is enveloped by many surface patches. 分析计算结果表明，并联机床的工作空间是由多张曲面片包围而成的闭包。
The paper introduces the design of the software and hardware of the opening NC system for the parallel machine tool. 介绍了并联机床开放式数控系统的软件、硬件设计。
Based on parallel machine tools with 6 THS architecture, a design theory and method were researched. 该文以6－THS型并联机床结构为对象，研究其设计理论与方法。
Firstly, the orientation workspace of the parallel machine tool is described with the polar coordinate. 首先用极坐标来描述并联机床的姿态空间；
In this paper, the structure design and the accuracy analysis of the deficient DOF parallel machin. 本课题完成了少自由度并联机床的结构设计和精度分析等,为并联机床设计提供了理论依据。
It is analyzed that the influences from limb kinematical constraints to degrees of freedom of moving platform in the design of parallel machine. 论述了并联机床各分支杆的约束自由度对运动平台自由度的影响,提出了主动链和约束链的概念。
The computational results show that the genetic algorithm is efficient and fit for large scale identical parallel machine scheduling problem. 计算结果表明，并行遗传算法是有效的，且能适用于大规模并行多机调度问题。
On the basis of these, a 3-TPT parallel machine tool was taken as study case and the visual design system of kinematics was developed by VB. 以3-TPT并联运动机床为研究实例，利用VB开发了该机床的运动学可视化设计系统。
It is analyzed in this paper that the influences from limb kinematical constraints to degrees of freedom of moving platform in parallel machine design. 文章论述了并联机床各分支链的运动约束对运动平台自由度的影响,提出了主动链和约束链的概念。
It's difficult to solve the direct kinematics of a parallel machine tool(PMT),which will deal with nonlinear function set. 并联机床运动学正解问题由于涉及到求解非线性方程组问题而不易解决。
A workspace based interference model of a 6-DOF parallel machine tool is established, which is expressed by a group of parameterized nonlinear equation. 以6自由度并联机床为研究对象,建立基于作业空间的干涉模型-含参数非线性方程组;
Identical parallel machine scheduling problems with family setup times are studied.A three-phase heuristic algorithm is developed to minimize the total earliness and tardiness. 摘要研究了优化目标为总拖后/提前时间最小化的并行机成组调度问题，提出了一种三阶段启发式近似求解算法。
Based on parallel mechanism kinematics and probability theory,the joint error analysis of a 3-DOF parallel machine with actuation redundancy(PMAR)was presented. 基于并联机构运动学及概率论,对一种3-DOF驱动冗余并联机床进行了铰链间隙误差分析,分析了球铰间隙对动平台中心点位姿的影响。
Aiming at the effect of static stiffness on the performance of PMT(parallel machine tool),the 3-TPT parallel machine tool developed by NEU is taken as the target to investigate. 为了研究机床静刚度对并联机床性能的影响,以东北大学研制的3-TPT并联机床为研究对象,通过对机床静刚度模型的理论分析,得出了机床静刚度的表达式。
Aiming at the total weighted tardiness scheduling problem of unrelated parallel machine,a kind of hybrid ant colony optimization algorithm was proposed. 针对一类变速机总加权拖期调度问题,提出一种混合蚁群优化算法。
Considering the kinematic features of the five-axis CNC parallel machine tool(PKM), a feed speed control method is proposed based on the known research fruits. 针对五轴并联数控机床的特点,文章在已有的研究基础上提出一种加减速控制方法。