查询词典 rigid

By using the transfer matrix method of multibody system, the hard problem of computation of the vibration characteristics of LRMLRS coupled with rigid bodies and elastic bodies is solved which is very difficult to the ordinary dynamic methods, and the vibration characteristics of LRMLRS which is varied when the number of rockets in the launch device is varied, is obtained conveniently. By developing augmented eigenvectors of the LRMLRS and its orthogonality conditions, the nonorthogonality problem of the multibody system including rigid bodies and elastic bodies is solved and the exact analysis of the dynamics response of the LRMLRS including rigid bodies and elastic bodies is realized. By using the random integer programming method, the hard optimization problem which contains continuous variables, discrete variables and random variables at the same time is solved. This method provides a technology for optimum design with random variables and discrete variables. The dynamic optimum design is realized to decrease the number of rockets consumption in the LRMLRS test. The simulation system of dispersion of fire is established by using the maximum entropy method to estimate dispersion of fire.

通过应用多体系统传递矩阵法，解决了刚弹耦合远程多管火箭多体系统振动特性这一通常力学方法不便于解决的计算难题，方便地获得了远程多管火箭振动特性及其随发射架上火箭弹个数变化而变化的情况；通过构造增广特征矢量及其正交性条件，解决了刚弹耦合多体系统特征矢量不具有通常意义下的正交性的难题，实现了对刚弹耦合远程多管火箭动力响应的精确分析；应用随机整数规划法，解决了同时考虑连续、离散和随机变量等多种设计变量的优化设计难题，为含随机和离散变量的优化设计提供了手段，实现了减少远程多管火箭试验用弹量的动态优化设计；建立了应用最大熵法估计的密集度仿真系统，优化射序和射击间隔，实现了提高远程多管火箭射击密集度的动态优化。

The data of mechanical properties test proved that the composite materials compounded with 0.39~0.46um PS organic rigid particles at 0.2% and PP have excellent strength and toughness. SEM photograph found that the organic rigid particles were separated into 60~80nm size in the composite by melting process, which has belter toughness compare with the PP compounded with ultra-fine organic rigid particles.

用2％粒径为0.39～0.46um的XPS复合PP，经力学性能测试，有最好的增韧效果；SEM扫描电镜发现，经热加工的复合材料中最小的有机刚性粒子粒径可部分分散到60～80nm，该复合材料比超细有机刚性粒子复合的PP有更好的冲击韧性。

The thesis starts with introducing the technology of the rigid suspension of overhead contact system, which is followed by a comparison between the rigid system and the catenary one. The rigid conductor line system features a simple structure and easy maintenance and can also save the tunnel construction costs.

论文首先介绍了接触网刚性悬挂的技术并与柔性悬挂进行了对比，说明刚性接触网悬挂具有简单的结构和支撑，同样可以节省隧道的建设费用。

Semi-rigid jointed steel frame design is more complex than rigid frame because of the difficulty to calculate the character s of bending moment and rotated angle of semi-rigid connection.

半刚性连接的弯矩转角特性的计算困难使得半刚性钢框架设计比刚性框架设计复杂得多。

Some valuable conclusions were drawn and shown as following: Three models were brought forward, i.e. 6DOF rigid-connected model, 8DOF rigid-jointed model and 12DOF non-rigid connected model. The basic dynamic properties of the system, the relative motion between parafoil and payload, and some geometric parameters'effects on the system dynamics were analyzed and summarized.

分别建立六自由度刚性连接模型、八自由度刚性铰接模型和十二自由度非刚性连接模型，着重分析了系统的基本运动特性、回收物-伞体间的相对运动特性，以及主要设计参数对系统性能的影响；并将不同复杂程度的模型进行对比，分析了各种模型的特点和适用范围。

The theoretical nutations of a non-rigid Earth are computed from a convolution of the rigid Earth nutation amplitude with a transfer function accounting for the geophysical parameters influencing the Earth rotation. The value of the Earth dynamical flattening correspounds to a scale in the rigid Earth nutation series.

在刚体地球章动振幅的计算中，地球动力学扁率值起着尺度因子的作用，要改善刚体地球章动振幅的计算，需要修改目前的黄经总岁差值。

Because the rigid-body motion includes the translation along with center of mass and the rotation about it, there are couplings between different rigid-bodies, and between different degree-of-freedoms of a single rigid-body.

刚体运动包括质心的平动和绕质心的转动，因而多刚体系统中不仅包括刚体之间的自由度耦合，而且包括刚体本身自由度之间的耦合。

A rotor structure for a rotating wing aircraft having substantially rigid rotor head means and rotor blades or wing means arranged in at least one pair, comprising blade angle bearing means (10, 12, 14, 16) for each rotor blade means, tension bar means (6,8) operatively interconnecting the rotor blade means of a pair which blade means are arranged diametrically opposite each other, said tension bar means having a high bending resistance, whereby transmission of bending moments from the rotor blades to the rotor head means is substantially prevented, each of said blade angle bearing means comprising a structure angularly movable in the wing flap direction and in the wing lead-lag direction, at least one of said blade angle bearing means of a pair comprising means permitting an axial motion of the respective tension bar means supported in said blade angle bearing means, and wherein said blade angle bearing means (10, 12, 14, 16) operatively support said tension bar means (6, 8) on said rotor head means (4) for pitch angle rotation of said tension bar means relative to said rotor head means (4), said rotor structure further comprising means (24) securing said rotor blade means (18) to said tension bar means (6, 8) in a manner rigid against rotation of the blade means about the longitudinal blade axis whereby the securing means prevent flapping, drag and lagging movements of the tension bar means, said tension bar means being constructed as torsion bars which are elastic relative to torsion about said longitudinal blade axis.

1转子结构为旋转翼飞机，有大幅刚性转子头部的手段和转子叶片或机翼的手段安排中至少有一对，组成的叶片角度轴承手段（ 10 ， 12 ， 14 ， 16 ）为每个转子叶片的手段，拉杆手段（ 6，8 ）手术互连转子叶片的手段，其中一对刀片的手段都是安排截然相反的对方说，拉杆手段，有一个高弯曲阻力，即传输弯矩从转子叶片向转子头的意思是，大幅防患于未然，每个叶片角度说，轴承的手段组成的一个结构angularly动产在机翼上皮瓣的方向和在机翼导致滞后的方向，至少有一个叶片角度说，轴承是指一对组成的手段，允许轴向的议案，分别紧张酒吧手段，支持在叶片角度说，轴承的手段，其中，叶片角度说，轴承的手段（ 10 ， 12 ， 14 ， 16 ）手术的支持表示拉杆的手段（ 6 ， 8 ）就表示，转子头部的手段（ 4 ）为俯仰角轮换说拉杆手段相对说，转子头部的手段（ 4 ）表示，转子结构进一步组成的手段，（ 24 ）说，确保转子叶片的手段（ 18 ）表示，拉杆手段（ 6 ， 8 ）在一个僵化的方式对旋转的叶片即是说，约纵向叶片轴，即确保手段防止扑，拖曳和落后变动的紧张局势，酒吧的手段，说拉杆手段，正在建造的，作为扭杆这是弹性相对扭转约说，纵向叶片轴。

According to characteristics of the discontinuous piecewise rigid-body model and the continuous deformable body model, a new model—Arbitrary Mesh Interface Element Model based on piecewise rigid-body displacement pattern and strain accumulated on interfaces is established, which can put both continuous media problems and discontinuous media problems into consideration.

本文根据不连续的分片刚体模型和连续介质变形体模型的特点，建立了统一分析连续介质问题和不连续介质问题的新模型——基于分片刚体位移模式和界面累积变形的任意网络界面元模型。

So it can track the target with robustness. The proposed method is based on particle filter, integrated with color histogram in the measurement model, and the system model is a second-order autoregressive process. The tracked target can be rigid or non-rigid.

这种方法是把颜色直方图结合到粒子滤波的观测模型中，应用二阶自回归模型作为系统模型，跟踪的目标既可以是刚性目标，也可以是非刚性目标，并且跟踪算法可以实时实现。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。