虚拟力

In the finite spring element ,the translation and rotation of arbitrary points of an arbitrary-shaped element is taken as the basic unknown,the action of the virtual spring mesh between the elements is then used to evaluate the deformation energy within the elements.

有限弹簧元以任意形状单元的任意点的平动与转动位移作为基本未知量，用单元间虚拟弹簧网的作用功评价其内部变形能，在模拟非均质、非连续性的材料或结构的受力过程时具有较好的应用前景。

The initial model of the clasper binding machine was established based on conception design,and its optimization was made.The dynamics character of the clasper binding machine was analyzed base on the ADAMS,the virtual design was performed based on the SOLIDWORKS,and the stress and deformation under load was analyzed based on ANSYS.The result of the simulated analysis of virtual prototyping was verified by the experiment.

它是计算仿真技术与产品设计有机的结合，通过CAD/CAM/CAE等技术把产品的信息集成到一个可视的环境中，以实现在产品制造前就可以对整个产品进行完整的分析与方案的优化，观察并试验各组成部件的相互运动过程、受力分析、装配关系、性能特性等，使用系统仿真软件在各种虚拟环境中真实地模拟系统的运动，以便修改设计缺陷，不断改进设计方案，直至获得最优设计方案，再制造物理样机。

In the telemanipulation , applying this data glove to connect it with graphic simulation, operator can control remotely the action of robot about its actual environment and realize the precise real force sensing in the presence field.

在遥操作中，利用这种数据手套，结合图形仿真，操作者能够在本地虚拟环境中，充分掌握远地机器人与真实环境相互关系，实现良好的力觉临场感。

The principle of differential transmission is introduced at first,and then the virtual prototype model of the differential gear mechanism is established by using ADAMS.The simulation and analysis of its two different working conditions are carried out,and the speed characteristic curve and force curve are got,the principle of differential is analyzed by the curve.

首先阐述了差速器的传动原理，然后利用ADAMS建立了差速器齿轮机构的虚拟样机模型，并对该机构进行了两种工况下的仿真分析，得到传动齿轮的转速特性曲线及受力曲线，并通过曲线分析了差速器的差速原理。

In this model,the correlation of interphase force,including drag force and virtual mass force,was used to provid...

模型中考虑了二相之间的作用力，包括液滴所受的曳力和虚拟质量力。

Based on the Hamiltonian governing equations of plane elasticity for sectorial domain, the variable separation and eigenfunction expansion techniques are employed to develop a novel analytical finite element for the fictitious crack propagation linear force model in fracture mechanics of concrete in this paper.

利用平面扇形域哈密顿体系的方程，通过分离变量法及共轭辛本征函数向量展开法，以解析的方法推导出基于混凝土虚拟裂缝扩展线性粘聚力模型的平面裂缝解析元列式。

The corresponding double-$K$ fracture parameters (initial cracking roughness $K_{\rm IC}^{\rm ini}$and unstable fracture toughness $K_{\rm IC}^{\rm un})$ introduced in the criterion are determined using a simple experiment method combing with an analytical evaluation based on the cohesive force on the fictitious crack zone.

其相应的双$K$断裂参数(起裂断裂韧度$K_{\rm IC}^{\rm ini}$和失稳断裂韧度$K_{\rm IC}^{\rm un}$)一般通过简便的试验和基于虚拟裂缝扩展粘聚力的解析方法确定。

In bilateral force-reflecting robot system, fuzzy control theory is adopted to increase fidelity of reflection force. Personate force control with self-studying function is designed.

在双向力反应机器人系统中，为提高反应力保真度，本文采用模糊控制理论，设计了具有自学习功能的拟人力控制器，来将由虚拟模型得到的反应力真实地传递给操作者。

This paper mainly reviews three most important elements in a telepresence system: a force-reflecting manual controller, a virtual reality unit and an advanced operator interface.

介绍遥现系统中3个最主要的组成部分：力反馈手控制器、虚拟现实装置和高级操作者界面。

Telepresence force-reflecting manual controller virtual reality unit advanced operator interface

遥现；力反馈手控制器；虚拟现实装置；高级操作者界面

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。