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pulse force
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  脉冲力
     The integral-form Solutions of fhe Surface displacements of an elastic halfspace produced by a horizontal harmonic concentrated force are obtained from the Laplace transform of displacemints for Dirac delta δ(t) pulse force.
     利用Dirac delta δ(t)脉冲力作用下位移的Laplace变换求得了水平谐和集中力作用下弹性半空间表面位移的积分形式解。
短句来源
     Tube electromagnetic forming is realized by magnetic pulse force.
     管件电磁成形是依靠磁脉冲力来实现的。
短句来源
     Combined with the characteristic of the force producers and the different type of the feedback force, it analyzed the magnetoelectric analog force feedback and the magnetoelectric digital pulse force feedback closed-loop plans.
     在此基础上,结合力矩发生器结构特点以及闭环反馈力类型,详细分析了磁电式模拟力反馈闭环方案,磁电式脉冲力反馈闭环方案。
短句来源
     First,by the inversealgorithm of transfer matrix,the given dynamic forces—pulse force andsine force—have been identified.
     首先应用传递矩阵求逆法,识别出给定的动态力——脉冲力和正弦力。
短句来源
     The paper focuses on the effect of axially relative position of coil and work on pulse force distribution,though there are some other factors.
     影响磁脉冲力的因素很多,但是本文主要研究线圈与工件的轴向相对位置对磁脉冲力分布的影响;
短句来源
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  “pulse force”译为未确定词的双语例句
     Three kinds of excitations, namely, harmonic force with frequency equal to the structural fundamental frequency, harmonic force with frequency equal to half of the structural fundamental frequency and pulse force are applied to such four kinds of models.
     将三种激励形式:激励频率等于结构基频的简谐形激励、激励频率等于结构基频之半的简谐形激励和锤击激励分别施加在这四种模型上,通过计算得到四种模型的位移响应,进而得到位移积分响应。
短句来源
     Having been the dynamic analysis on cushioning package acted by the stimulation of sine and pulse force,thepaper establishes the integrated system of computer dynamic simulation,of characteristic evaluation and of its design.
     通过对缓冲包装系统在正弦位移激励和冲击力作用下的动态分析,建立了缓冲包装的计算机动态仿真、性能评价及其设计的一体化系统。
短句来源
     Under a fix impact strength and 150 Hz pulse force main lobe frequency,a new type of shock absorber model was simulated and analyzed by change of spring rigidity,rubber Mooney-Rivlin parameter,the quantity of under tie-in,and the shock absorber effect was discussed.
     建立新型减振器模型,在一定冲击强度下,脉冲力主瓣频率为150 Hz时分别改变弹簧刚度、橡胶Mooney-Rivlin参数、下接头质量进行有限元分析,并讨论减振效果。
短句来源
     Study on the Relationship between Three Dimensional Motion of Radial Artery and Pulse Force
     桡动脉三维运动与脉势关系探讨
     Under these assumptions, three kinds of excitations, namely, harmonic force with frequency equal to the structural fundamental frequency, harmonic force with frequency equal to half of the structural fundamental frequency and pulse force are inputted to the undamaged and damaged structures. Then under the same excitation, the undamaged structural displacement responses, velocity responses, acceleration responses, jerk responses and responses of integrated displacement are compared with that of the damaged ones.
     在此假定基础上,分别将激励频率等于结构基频的简谐形激励、激励频率等于结构基频之半的简谐形激励和锤击激励输入结构,而后比较了损伤前后结构在相同激励下的位移响应、速度响应、加速度响应、加加速度响应和位移积分响应。
短句来源
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  相似匹配句对
     ON THE FORCE
     论力
短句来源
     Tube electromagnetic forming is realized by magnetic pulse force.
     管件电磁成形是依靠磁脉冲力来实现的。
短句来源
     Executive Force
     执行力
短句来源
     The Constant Power Pulse Width Modulation Sensor with Force Balance
     恒功耗脉宽调制力衡式传感器
短句来源
     On Complex Pulse
     两种相兼脉刍议
短句来源
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  pulse force
Pulse force compensators of electromagnetic balances
      
feeling due to the diminished air pulse force provided by the instrument had still considerable influence on IOP.
      


The integral-form Solutions of fhe Surface displacements of an elastic halfspace produced by a horizontal harmonic concentrated force are obtained from the Laplace transform of displacemints for Dirac delta δ(t) pulse force. In contrast to Lamb's solution of integral expression, the authors use HeaViside harmonic step function H(t)e~(iwt) and obtained the exact and closed-form solutions for the dynamic horizontal surface displacements of a homogeneous isotropic elastic half-space under a horizontal harmonic...

The integral-form Solutions of fhe Surface displacements of an elastic halfspace produced by a horizontal harmonic concentrated force are obtained from the Laplace transform of displacemints for Dirac delta δ(t) pulse force. In contrast to Lamb's solution of integral expression, the authors use HeaViside harmonic step function H(t)e~(iwt) and obtained the exact and closed-form solutions for the dynamic horizontal surface displacements of a homogeneous isotropic elastic half-space under a horizontal harmonic concentrated force. The exact solutions for the dynamic harmonic concentrated force are matched with the well-known Cerruti's Solution in statics and with the Chao's solution in dynamics. The results of the exact and closed-form solutions are illustrated in graphs and are conpared with Toriumi's theoretical results.

利用Dirac delta δ(t)脉冲力作用下位移的Laplace变换求得了水平谐和集中力作用下弹性半空间表面位移的积分形式解。与Lamb求解积分表达式的方法不同,本文使用了Heariside谐和阶跃函数H(t)e~(iωt),从而求得了匀质各向同性弹性半空间在水平谐和集中力作用下动水平表面位移的精确闭合解。这种动谐和集中力的精确解与著名的Ceruti静力解以及Chao的动力解相对应。由所得精确闭合解所计算的结果以图线表示之,并与鸟海的理论结果作了对比。

The vibration and sound radiation of a submerged spherical shell in the time-domain are studied by Laplace transform method, in which a pulse force is acted at the apex of the shell. The numerical results for the case of long pulse show that the different vibrating mode and the resonant or beat radiation sound are excited by the different filling-frequencies and little sound is radiated by some vibrating modes. For the case of short pulse the waveforms of the pulse become widened and...

The vibration and sound radiation of a submerged spherical shell in the time-domain are studied by Laplace transform method, in which a pulse force is acted at the apex of the shell. The numerical results for the case of long pulse show that the different vibrating mode and the resonant or beat radiation sound are excited by the different filling-frequencies and little sound is radiated by some vibrating modes. For the case of short pulse the waveforms of the pulse become widened and deformed when the pulse propogates between apexes of the shell. Then, the Doubly Asymptotic Approximations (DAA2) and Kirchhoff's Retarded Potential Formulation (KRPF) are used to solve the same problem. It shows that the results of DAA2 and KRPF method have a good agreement with the results of Laplace transform method.

本文在时域上对水下球壳在球冠形均匀单频填充脉冲力源作用下的振动和辐射声问题进行分析和计算。结果表明:在长脉冲力作用下,根据填充频率不同,会激起不同模态振动和产生长的共振辐射声或拍频辐射声,但有一部分模态对远场声辐射的贡献甚微;在短脉冲力作用下,脉冲波在球壳上传播一般会发生展宽和变形。文中还应用DAA2方法简化水——壳体耦合关系和边界元方法计算辐射声场。与精确解比较可知,DAA2方法的结果是令人满意的。

A study on the vibration and radiated sound from a submerged arbitrary shell of revolution is carried on in the time-domin, where the Doubly Asymptotic Approximations(DAA2) is applied to describe the fluid-shell coupling the hybridized modal decomposition and direct integral method to obtain the vibration response and the boundary element method of Kirchhoff's retarded formula to obtain the radiated sound. Taking a submerged spheriodal shell excited by the CW or 6 pulse force, which is located at the one...

A study on the vibration and radiated sound from a submerged arbitrary shell of revolution is carried on in the time-domin, where the Doubly Asymptotic Approximations(DAA2) is applied to describe the fluid-shell coupling the hybridized modal decomposition and direct integral method to obtain the vibration response and the boundary element method of Kirchhoff's retarded formula to obtain the radiated sound. Taking a submerged spheriodal shell excited by the CW or 6 pulse force, which is located at the one end of the shell, as an example, the numerical and experimental results are discussed.

本文通过采用DAA2方法,有限元模态展开和直接积分混合方法以及Kirchhoff推迟势的边界元解法在时域上对水下任意形旋转薄壳振动和辐射声进行研究。以水下椭球壳的端部轴对称激励问题为例,对力源的时间函数分别为单频填充脉冲和δ脉冲两种情况给出了一些典型的数值计算结果和实验结果,并进行了讨论。

 
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