查询词典 virtual machine

In order to establish the reliability model of long pipeline and rope, which is capable of reflect ing the correlativity between virtual components, the present paper illuminates the segment partition principle of long pipeline and rope continuity system , relat ion ship between sizes of virtual segment s and features of flaw dist ribution, distribution of segmentin tensity, the failu recorrelativity among components, relat ion ships of segment sizes, relation ships between distribution of system intensity and that of segment in tensity and so on.

摘 要：为了建立能反映虚拟的"元件"间失效相关性的长管道或缆绳的可靠性模型，论述了管道、缆绳类连续系统的单元化原则，虚拟单元的尺寸与缺陷分布特征的关系，单元强度分布及单元间的失效相关性与单元尺度的关系，系统强度分布与单元强度分布的关系等。

Based on the variational principle of virtual voltage and virtual displacement derived in this thesis and the classical theory of linear laminated plates, and by using the constitutive equations of elastic piezoelectric materials, and the DKQ quadrilateral plate bending element, the finite element modeling for the fabric reinforced laminated plates with nonlinear voltage-electric strain relationship of piezoelectric actuators has been established for the first time in this thesis. And the expressions for the electric loadings with obvious mechanical meaning and convenient for computation are established, which can be used to the deformation analysis of laminated plates with piezoelectric actuators under specified voltages.

以本文直接导出的压电结构的虚电势—虚位移变分原理为基础，依据经典线性层合板理论和压电弹性体的本构方程，采用基于离散法线假设的DKQ四结点任意四边形薄板弯曲单元，首次建立了考虑非线性电压—电应变关系的含压电致动器的纤维增强型层合板的有限元分析模型，并推导建立了力学意义明确、便于计算的电荷载表达式，可用于指定电压条件下纤维增强型叠层合成板的变形分析。

3 Computation of virtual work principle and structural displacement : understand the content about the virtual work principle of deformable body and its application; skillfully master the calculation method of statically determinate structure displacement by loads; master the calculation method statically determinate structure displacement by temperature variation and support movement; know Reciprocal theorems .

虚功原理和结构位移计算：理解变形体虚功原理的内容及其应用，熟练掌握在荷载作用下静定结构位移的计算方法，掌握静定结构在温度变化，支座移动影响下位移的计算方法，了解互等定理。

Keywords: virtual assembly;hybrid tolerance model;model mapping;product modeling;virtual reality

通过分析虚拟装配对产品公差模型的要求，提出了虚拟环境下产品公差混合模型。

Taking bearing virtual prototype as an object, model transformation and product demonstration of virtual product were studied in this paper.

本文以某轴承虚拟样机为例，从模型转换，以及产品演示的角度进行了研究。

This paper adopts a method proposed recently, which uses projective geometry transform and 3D vision correspondence from multiple cameras to interpolate virtual images based on virtual viewpoint.

本文采用了一种较新的方法，即通过基于射影几何学变换和立体视觉对应的方法插入虚拟视角的虚拟图像。

At last, a virtual proving ground is built based on OpenGL, with this work the virtual experiment may be carried out next.

最后，建立了基于OpenGL的虚拟试验场，可以在此基础上进一步进行汽车虚拟试验。

Virtual environment is a condense space from depth direction Through experiment, it is proved that virtual environment could not display original depth of the real world, and it is a depth-condensed space.

通过试验，从调节和集合的角度证明了虚拟环境不可能还原现实世界的深度信息，虚拟环境是一个深度方向被压缩了的空间。

And feel are virtual; our voice is real, our memory is virtual

的唯物主义和唯心主义，胜利了的二元论。

With the help of the real entity calibration algorithm introduced in this dissertation, the system will overlap the calibrated virtual robot on the real video images and use the virtual robot to respond users' operation in real time.

最后在理论研究的指导下，通过两种精度的装配实验，总结分析了不同的作业任务对机器人遥操作系统的影响，验证了系统的可行性和正确性。

My father is over 60 years old, and he lifts weights every day.

我爸爸六十多岁了，他每天都练习举重。

Then in a serious tone she declared:"It doesn't pay, dear boy, to look like a ninny with one's wife the first night."

两眼湿润了，她把身子蜷得很小，这样似乎可以更好地闻闻自己。