| 1. | Fem analysis on cwr vibration characteristic through harmonic response way
无缝线路钢轨振动特性谐响应有限元分析 |
| 2. | Harmonic response characteristic
谐波响应特性 |
| 3. | Sixth , low - order natural frequency has being obtained by the mode analysis experiment of machine tools , the dynamic parameters of combination surface jointed by bolts were identified by the synthesis of fea , optimal algorithm and harmonic response analysis
6 .研究了如何利用由实验模态分析测得整机的低阶固有频率,通过将有限元分析和优化算法、谐波响应分析相结合的方法,完成螺栓联接结合面的参数识别问题。 |
| 4. | The prestress and harmonic response analysis method is used to study the unbalance response of a turbo - generator rotor and the displacement - frequency curve at a point of the rotor as well as the sress and strain at an appointed frequency are provided
摘要利用预应力及谐响应分析的方法研究了转子的不平衡响应，得出在某频率范围内，转子在指定点处位移对频率的响应曲线以及在指定频率处，整个转子上的应力、应变响应的影响等。 |
| 5. | Research methods of expansion joint ' s mode and harmonic response were systemically studied and a fea modeling & post process software for project designer was built in this article . and it may contribute much to theory and project practice for expansion joint
本文工作不仅较系统地完成了波纹管膨胀节振动模态与响应分析方法的研究，还为工程设计人员提供了基于参数化的有限元建模及后处理软件，具有一定的理论意义和重要的工程应用价值。 |
| 6. | We acquired the system ' s dynamic response when the satellite attitude was adjusted and the mode of the antenna . then modal analysis and dynamic analysis have been done to the satellite - antenna system by using the finite element analysis ( fea ) software of ansys . through the analysis we got the system ' s connatural characteristic , the amplitude - frequency characteristic of harmonic response , the power spectrum density of random vibration response , the maximal amplitude and resuming time of impact response
其次借助ansys有限元分析软件，对系统进行了模态分析和动力学响应分析，获得了不同天线结构参数下的卫星?天线系统的固有特性，简谐响应的幅频特性，随机振动响应的功率谱密度，以及冲击响应的最大幅值和恢复时间等。 |
| 7. | Expansion joint was one of the most important parts of pipe system . it can close the vibration off in pipe system and absorb the displacement caused by stress , axial force , transverse force and temperature grads . based on fea parametric analysis , ansys was used to study the mode and harmonic response of expansion joint in this article
波纹管膨胀节是管系中的重要组成部件，它不仅能够吸收由压力、轴向力、横向力、弯矩以及温差等原因引起的位移，还可作为隔振元件用于管系的减振隔振。 |
| 8. | In this dissertation the finite element analyze ( fea ) has been used to analyze the characteristic of the vibration of the frame . the dynamic characteristic has been deeply and systematically comprehended through the modal analysis and harmonic response analysis . it provides the important basis of solving the vibration of the motorcycle and has some theoretical significance and important practical value
本文主要采用有限元法对摩托车车架的振动特性进行分析，通过模态分析及谐响应分析，对车架的动态特性有了深入系统的了解，为解决摩托车的振动问题提供了重要的依据，具有一定的理论意义和重要的实用价值。 |
| 9. | Then experiment was processed to testify the calculated results . based on the theory of vibration mode , harmonic response and experiment , fea meshing , fea element and bound condition of expansion joint were analyzed . then a parametric fea modeling & post process software was developed by apdl and visual basic langrage
本文采用有限元数值分析方法，利用大型商用有限元计算软件ansys ，研究了基于结构参数化设计思想的波纹管膨胀节的振动模态和含波纹管膨胀节管系的振动响应分析方法，开展了波纹管膨胀节模态试验验证。 |
