有变形的

Consensus is found by comparing the simulation result and test results in deformations and acceleration curve. Energy absorption behavior of each part is compared.

以ECE R33法规对该轿车进行了碰撞过程仿真计算，仿真计算的变形结果和实验结果吻合度达到80％，车身典型位置的加速度曲线也有相同的规律。

The 1.5x zoom lens has enough range to move back and forth from 2.35 to 16:9 if the user wishes to set up a 2.35 CIH system with zoom changes rather than the anamorphic lens.

的1.5倍变焦镜头，有足够的范围，摆脱2.35来回16时09分，如果用户希望建立一个2.35 CIH病毒系统变焦的变化，而不是变形镜头。

In this topic, the dynamic analysis methods for piezoelectric vibrator are studied systematically based on the theoretical model, FEM numerical experimentation and FEM governing equation for given compound-mode vibrator, and some valuable conclusions are obtained. The main work accomplished is summarized as follows: 1.Elaborate the main modeling methods for piezoelectric vibrator and the significance and necessity to study the dynamic characteristics of piezoelectric vibrator which emphasize the urgency of this paper. 2.Take the bending deformation induced by piezoelectric ceramic as example, the energy transfer mechanism of electric energy to mechanical energy are analyzed; the motion and force transfer mechanism are analyzed for the longitudinal-bending vibrator. 3.Based on mode assumption and Hamilton principle, the coupling model of piezoelectric vibrator of linear USM is built; moreover, the equivalent circuit model is obtained and a coupling equation represents the relation between electric parameters and mechanical parameters is derived which provides foundation to match the vibrator and driving circuit. 4.Combine the constitutive equation of piezoelectric ceramic with elastic-dynamical equation, geometric equation in force field and the Maxwell equation in electric field and the corresponding boundary condition equation, the FEM control equation for piezoelectric vibrator of USM to solve dynamic electro-mechanical coupling field is established by employing the principle of virtual displacement. The equation lays the foundation to study the non-linear constitutive equation of piezoelectric ceramic driven by high-power. 5.Define the dynamic indexes of characteristic of vibrator and carry out variable parameters simulation by calculating the model parameters and the electric characteristics of vibrator are simulated according to the equivalent circuit model. By numerical experimentation, the working mode of vibration of vibrator and the shock excitation results of the working frequency band which provides the mode frequency to realize bimodal are analyzed. Detailed calculation of the electro-mechanical coupling field parameters is made by programming the FEM control equation.

本课题从理论模型、有限元数值试验、有限元控制模型等方面以复合振动模式振子为例对超声电机压电振子的动力学特性及其分析方法进行了全面系统地研究，得出了许多有价值的结论，主要概括如下： 1、阐述了目前针对超声电机压电振子的主要建模方法，对压电振子动态特性的研究意义和必要性进行了论述，突出了本文研究内容的迫切性； 2、以压电陶瓷诱发弹性体发生弯曲变形为例，分析了压电陶瓷通过诱发应变来实现机电能量转换的机理；对基于纵弯模式的压电振子的运动及动力传递机理进行了分析； 3、基于模态假定，利用分析动力学的Hamilton原理，建立了面向直线超声电机压电振子的机电耦合动力学模型，并据此建立了压电振子的等效电路模型，导出了电参量与动力学特性参量的耦合方程，为压电振子与驱动电路的匹配提供了依据； 4、从压电陶瓷的本构方程出发，综合力场的弹性动力学方程、几何方程、电场的麦克斯韦方程以及相应的边界条件方程，采用虚位移原理，建立了压电振子动态问题机电耦合场求解的有限元控制方程，为研究其大功率驱动下的非线性本构模型奠定了基础； 5、界定压电振子的动力学特性指标，对压电振子的机电耦合动力学模型参数进行计算及变参数仿真；依据等效电路模型，对压电振子的电学特性进行了仿真分析；通过有限元数值实验，对压电振子工作模态附近的模态振型及工作频率附近的频段进行了激振效果分析，找出了实现模态简并的激振频率；利用有限元控制方程，通过编程计算，对压电振子的力电耦合场参数进行了详细计算，得出了一些有价值的结论。

In the human body, and the body more than in the portrait lines, made deformation, strengthen the curve of rhythmic flow sense, all his pursues idealized beauty.

在人体和肖像画中多把体态线条做了变形，形成有节奏的曲线，加强流动感，他自始至终地追求着理想化的美。

Hence, it is urgent to study the deformation of screw distributing die widespread plate.

故对螺杆分配机头宽幅模板的变形问题进行研究是一项十分有意义的工作。

Finally the method is illuminated by an example. The present method will provides a new path for reliability analysis of ground settlement with shield tunnel.

目前，预测隧道开挖地层变形的方法主要有经验公式法、模型试验法、数值模拟法等[1]，但这些都是确定性的分析方法。

So ,the temperature is quite essential for an engine to produce power .No engines can work well without suitable operating temperatures .If the engine runs too hot ,it may suffer form pre-ignition,while the air-fuel change is ignited prematurely from excessive combustion chamber temperature.Viscosity of the oil circulating in an over heating engine is reduced.Hot oil also forms varnish and carbon deposits may be drawn into the combustion chamber where it increases HC emission.This also causes poor performance and premature wear ,and may even result in engine damage.What is more,the behavior of the metals at excessively high temperature also differs from that at normal temperatures and can produce a condition in which the metal deforms slowly and continuously at a constant stress,If the engine runs too cold, the fuel will not vaporize properly.If liquid fuel reachees the cylinders,it will reduce lubrication by washing the oil from the cylinder walls and diluting the engin oil.This causes a loss ofperformance, an inrease in HC emissions, and premature engine wear.

所以，温度是很有必要的引擎来产生电力，没有引擎，可以工作，如果没有合适的操作温度，如果发动机运行太热，它可能遭受的形式预点火，而空气燃料的改变是点火过早过量燃烧室temperature.viscosity的石油流通的过度加热发动机是reduced.hot油价也构成了清漆和碳存款可能会被拖入燃烧室而增加hc的emission.this也造成业绩不佳和过早磨损，甚至可能导致发动机damage.what更重要的是，行为的研究金属在过高的温度也有不同，在正常温度下，可以达到的一个条件，其中金属变形速度缓慢，不断在恒应力，如果发动机运行太冷了，燃料价格将不会汽化properly.if液体燃料reachees气瓶，将减少润滑洗油从气缸壁和稀释器oil.this造成损失ofperformance ， inrease在hc排放，发动机过早磨损。

The fixing structure for preventing screen filter from bending and distortion possesses following characters of structure: screen for focusing projective light from back side; filter in front of the screen; bracket having pinholes installed at certain position at back side of the filer; holding frame having pothooks for to be inserted into pinholes and fixing the filter into device case.

本发明将涉及一种可以防止发生设在屏幕前面的滤光片的弯曲和变形的图像显示设备的屏幕滤光片固定结构，具有下述的结构特征：设有从背面投射的光线得以结像的屏幕；设有设在屏幕前面的滤光片；设有安装在滤光片背面一定位置上的形成有针孔的托架；设有使滤光片固定到机壳上的，而且形成有挂钩，以便能插入针孔中的支撑架。

Upon the purest of black and white, almost everything is omitted, all are abstracted into rainbows deflected from white light. This generalization offers an image both succinct and abundant. The series shows contrast yet well-blended tension, shocking the eye with imposing manner.

介于黑白之间，几乎什么都省略掉，万物都化成可见白光和折射出变形的彩虹，这一归纳使得画面简练而丰富，既有对比又十分调和，形成一种张弛有度，翻天覆地的气势。

This paper passes on the general expression s for determining deflections of the stepped beams,and researches its application situation.

介绍了阶梯梁弯曲变形的普遍表达式，并对其应用情况进行了研究。该表达式对阶梯梁的计算机分析和优化设计有实用价值。

I can still vividly recall the impressive scenes you gave. You were among my friends and relatives who accompanied me from my house to the seaport and when the porters were slow to show up, you obligingly carried my suitcase for me.

你对我的种种感人情意，使我记忆犹新，那天你随着我的亲友从家里送我上轮船，搬运工迟迟不来，你毅然替我提着皮箱上船。

St. Nicholas became the patron saint of Russia, where he was famous for his red cape, flowing white beard, and bishop's mitre.

圣尼古拉成了俄罗斯人的守护神，在那里，他以身披红斗篷，留着飘逸的白胡须，戴着主教法冠而闻名。