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。
It is analyzed that the influences from limb kinematical constraints to degrees of freedom of moving platform in the design of parallel machine.
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 is analyzed in this paper that the influences from limb kinematical constraints to degrees of freedom of moving platform in parallel machine design.
碰撞检测对约束求解产生影响,通过改变约束求解顺序或改变约束链,达到对约束系统有效性的维护。
Collision has an effect on constraint solution, so maintaining validity of constraint system is accomplished by modifying constraint solution sequence or constraint chain.
对东北大学研制的3 -TPT并联机床,分析了其约束链对机床运动及动力学特性的影响,并在ADAMS机械动力学仿真软件上建立了仿真运动模型。
After analyzing kinematics and dynamic character 3-tpt parallel machine tool developed by Northeastern University by its simulation model constructed in ADAMS, kinetic and dynamic curves are obtained.
尽管理论上还可以包括平面,但平面却不能加以约束,因此只相当于开式运动链。
Although a planar pair might theoretically be included, this would impose no constraint and thus be equivalent to an opening in the kinematic chain.
运用图论中的最短路径搜索算法从装配模型中自动搜索出功能约束尺寸链,确定零件的功能尺寸。
Utilizing the shortest path algorithm in Graph Theory to search functional dimension chains automatically in the assembly model and ascertain the functional dimensions of the part.
也就是说,我们如何才能使用个体的经济力量去真正对使用童工的公司的供求链产生影响,来约束它们的滥用童工的行为呢?
In other words, who are the bad actors, the companies using child labor, and how can we use our individual economic clout to have a real impact on their supply chains and their behavior?
基于次铰全自由度表达模型,推导闭链加速度约束等式;
The acceleration constraint equation is obtained based on the six DOF model of secondary joint.
厂房上下游边墙围岩对蜗壳层混凝土结构的水平链杆约束对结构动力特性影响较小;
The parallel chain constraint, which is imposed by the sidewall on the concrete structure of the volute layer, plays a relatively small role on the dynamic characteristics of the structure.
尽管理论上还可以包括平面副,但平面副却不能加以约束,因此只相当于开式运动链。
Although a planar pair might theoretically be included, this would impose no constraint and thus be equivalent to an opening in the kinematic chain.
关键链技术是约束理论在项目管理中的新应用。
The critical chain technique is a new application of theory of constraints to the project management.
供应链管理的出现,使企业从资源的约束中解放出来,创造出新的竞争优势。
The Supply Chain Management sets enterprises free from the restriction of resource, create a new advantage in competition.
在整个物资供应与管理工作的长链中,如何通过约束和监督机制,来保证投资方的效益,是一个值得研究和探讨的问题。
In the long chain of material supply and management, how investment efficiency can be guaranteed by way of discipline and supervision is a problem which is worth investigating and exploring.
在这篇论文中,我们提出了一个链路选择函数用于解决时延约束组播问题。
In this paper, we present an edge selection function for solving the delay bounded multicast problem.
进而在符合机床实际加工状态的边界约束条件下,利用传递矩阵法对传动链扭振特性作了计算分析。
Under new boundary restraint condition in accordance with the actual working condition of the machine, the torsional freqency response is computed with complex transfer matrix method.
针对尺寸之间的关联约束,本文首先分析了尺寸链约束的特点,提出了基于尺寸链的尺寸环模型。
The characteristics to dimension chain constraint is analysed, dimension loop model is put forward based on the dimension chain for solving dimension relationship constraints.
在考虑整体成本目标和个体企业约束条件的基础上,建立了一个供应链构建决策模型。
By considering the cost objective of the whole supply chain and the constrain conditions of the individual enterprise, we build a decision model for supply chain formation.
首先建立了运动链的等效电路模型,将运动链的拓扑结构关系等效为电路网络的拓扑约束关系。
The equivalent circuit models of kinematic chains are established firstly, which make the topological relationships of kinematic chains equal to the topological restriction of circuits.
尺寸约束处理主要解决尺寸树建立和尺寸约束图形链的形成。
The processing of dimension restriction mainly resolves the building of the dimension tree and the graphic list of dimension restriction.
研究具有时延约束的最小代价组播路由问题,提出一种基于链路优化的组播路由算法求解该问题。
Delay-constrained least-cost multicast routing problem is studied, and a multicast routing algorithm based on link optimizing is proposed to solve the problem.
在最优耗费的约束下,还给出了一个基于资源竞争链的浮动信息更新算法,以便更新各活动的浮动信息。
Under the constraint of the optimal resource cost, an algorithm based on resource competition chain was also promoted to update the float information of the uncritical activities.
第四章:提出了基于装配图约束关系的尺寸链自动生成原理。
In the fourth chapter, the automatic generation theory of the dimension chain based on assemble drawing is put forward.
本文着重讨论供应链中的资金约束问题。
The paper mainly concerns about the budget constraint problem in the supply chain management.
分布式系统的可靠性不仅取决于它的资源(如程序和数据文件)的分布,而且取决于它的通讯链路和节点的可靠性。 分布式实时软件还应考虑时间约束因子。
The reliability of distributed computing system depends not only on the reliability of communication links and nodes, but also on the resources distribution, including programs and data files.
研究三个并行处理器环境中,具有递减链约束的多处理器任务的调度问题,调度目标是最小化总处理时间,假设单项任务需单位处理时间。
This paper focuses on scheduling unit length multiprocessor tasks with de-creasing chain precedence constrains on three identical processors so as to minimize makespan.
然后,分析了船舶供应链的复杂性特征,构建了一个多周期、多产品、多约束的基于复杂系统理论的层级船舶供应链协调模型。
This paper described the domestic and international theoretical research of the complicated system theories and the coordination mechanism of supply chain firstly.
在模拟结果的基础上,重点讨论了供应链企业在不同运作模式下的表现和资金约束对供应链企业绩效的影响。
In the later chapter, system dynamics is used as an effective modeling method to simulate the supply chain system and compare the performance of the enterprises.
进入大变形阶段后,连接轴向约束压力变为约束拉力,轴向拉力阻止钢梁自身进一步变形,发生了悬链线效应。
When connection come into the phase of larger deformations, axial force turn into the tensile force, prevent the further deform, it means that catenaries action occur.
进入大变形阶段后,连接轴向约束压力变为约束拉力,轴向拉力阻止钢梁自身进一步变形,发生了悬链线效应。
When connection come into the phase of larger deformations, axial force turn into the tensile force, prevent the further deform, it means that catenaries action occur.
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