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The structure feature of the sensor was described in comparison with the classical Stewart platform-based six-component force sensor.By using the finite element method,the elastic dynamics theoretical model of the sensor was established based on the conditions of displacement consistency and force balance.According to this model,the numerical analysis was carried out,and the variety relationship curves between the natural frequencies and the structural parameters are plotted.

描述了该传感器相对于经典Stewart平台六维力传感器所具有的结构特点；利用有限元法，采用位移协调和力平衡条件建立了传感器弹性动力学理论模型，依此模型进行数值分析，绘制了固有频率与各结构参数间变化关系曲线；并利用ANSYS软件建立了传感器有限元模型，进行了振动模态分析，得到其固有频率和振型。

Based on the equilibrium equation of an arch element the cubic nonlinear dynamic model with second order is established and the nonlinear differential dynamic system without constant term is obtained through a transfer process of T=U+b. Hence three fixed points and the homoclinic orbits are found. The critical condition of the chaotic vibration of the elastic arch is given by using the method of Melnikov function. The numerical results of the stationary and chaotic motion are given and discussed.

首先利用拱的单元平衡方程建立了拱的二阶三次非线性动力学模型；然后通过变换使方程转化为不含常数项的非线性微分动力系统，并由此得到无扰动系统的3个不动点与同宿轨道；再用Melnikov函数法给出了发生混沌的临界条件；最后给出了该系统出现定常运动和混沌运动的数值结果。

Some of the most influential constitutive elastic-plastic theories are analyzed and compared .

在对现有的最有影响的几种塑性理论加以分析、比较和评判中加以发展和完善。

Firstly, general mechanical displacement and a dispersion equation are derived by solving elastic field equations with continuity boundary condition.

本文推导了双层声波导结构乐甫波传感器的频散方程和质量敏感度。

In this paper,the boundary singular kernel method in Reproducing Kernel Paicle Method has been applied to impose the essential boundary conditions in EFGM by revising the MLS shape function.The stress field and the displacement field are analysed by linear elastic theory.The contour integral method is used to calculate the J-integral,then the stress intensity factors of mixed-mode crack is acquired.The correctness and the validity of the method are validated.

本文将再生核质点方法中的边界奇异权方法引入EFGM中，通过对MLS形函数进行修正实现了本质边界条件在节点处的精确施加；运用线弹性断裂理论分析裂纹板的应力应变场，采用围线积分法计算J积分，给出了复合型裂纹板的应力强度因子的无网格伽辽金方法。

By applying contour integral method and high-order displacement functionsof MM,we obtain the accurate stress intensity factors of mixed-mode crack.Then,the open crack propagation of the mixed mode I and II is simulated by means oftheories of linear elastic fracture mechanics.This provides a simple and effectivenumerical way for crack evolvement studying.

接着，文中采用围线积分法和流形方法的高阶位移函数来计算得到比较准确的混合型裂纹尖端的应力强度因子，然后基于线弹性断裂力学的裂纹扩展准则，用流形方法实现了平面I-II混合型张裂纹扩展的数值模拟，为数值方法研究裂纹的演化行为提供了一条简单而有效的途径。

The commonest protein in muscle cells, responsible for the elastic and contractile properties of muscle.

肌球蛋白在肌肉细胞中最普通的蛋白质，对肌肉的弹性和收缩性的特性很重要，它与肌动朊结合形成肌动球朊

This paper measured the cooling curve of quenched and tempered heavy forging in temper cooling, and calculated maximum instantaneous elastic stress in cooling below 400℃.

测量了调质大锻件高温回火冷却时的表面及心部冷却曲线、室温及低温冲击韧性，并且计算了400℃以后冷却时最大瞬时弹性热应力。

In corium, collagen and elastin forms the 3D structure and are filled with hyaluronic acid, thus creating tender and elastic sin.

在真皮层中，胶原蛋白与弹性蛋白形成立体结构，保水成分透明质酸填充其间，为肌肤带来水嫩与弹力。

The gentle honeysuckle essence formulate can make the eye area firming, and also smooth the small furrow and crow's-feet, deeply lockup water, keep the eyes bright and elastic, meanwhile, it can promote the aging corneous metabolize thus make the eye area become velvet and soft, desalt the porch and edema. Keep on using may retard of the new furrow growing, and then your eyes will look more smooth, firm and young.

温和的忍冬精华配方，紧实眼周肌肤，抚平眼部细纹鱼尾纹，强化眼部肌肤的防御屏障，深层锁住水分，让双眼水润有弹性，同时通过促进老化角质的代谢，让眼周肌肤变得平滑柔嫩，淡化眼袋和眼部浮肿，持续使用能延缓眼周细纹和皱纹的形成，使双眼看起来更加平滑、紧致和年轻。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。