| 柱式负荷传感器的摆动支承振动分析 |
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| 引用本文： | 岳恒昌,陈兵,尹忠俊. 柱式负荷传感器的摆动支承振动分析[J]. 噪声与振动控制, 2009, 29(1): 46-51. DOI: A |
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| 作者姓名： | 岳恒昌 陈兵 尹忠俊 |
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| 作者单位： | （ 1. 福州大学机械工程及自动化学院，福州350116； 2. 泉州师范学院，福建泉州362000；
3. 福建省计量科学研究院，福州350003 ） |
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| 摘 要： | 动态称重条件下，柱式负荷传感器的支承方式可分为弹性支承和摆动支承。动态称重时，摆动支承的称重系统表现出显著的振动特性，影响称重准确度和负荷传感器的疲劳寿命。针对摆动支承柱式负荷传感器，分析其运动特性得出摆动支承的稳定性条件，得到摆动支承下回复力与摆动角及施加的竖向力近似成正比的关系。利用达朗贝尔原理建立柱式负荷传感器摆动支承振动的动力学控制方程，分别对其自由状态和动态称重状态的动力学响应进行数值计算，得出支承振动振幅和回复时间的影响因素，为动态称重准确度的分析提供参考，同时也可作为称重系统减振的设计依据。
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| 关 键 词： | 振动与波 摆动支承 柱式负荷传感器 振动分析 动态称重 |
| 收稿时间： | 2008-05-04 |
| 修稿时间： | 2008-06-07 |
Simulation and Analysis of Pipe Noise Radiation with FEM/BEM |
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| YUE Heng-chang,CHEN Bing,YIN Zhong-jun. Simulation and Analysis of Pipe Noise Radiation with FEM/BEM[J]. Noise and Vibration Control, 2009, 29(1): 46-51. DOI: A |
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| Authors: | YUE Heng-chang CHEN Bing YIN Zhong-jun |
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| Affiliation: | （School of Mechanical Engineering, University of Science and Technology Beijing, Beijing:100083 China） |
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| Abstract: | A three-dimensional model of finite element method and boundary element method for computing vibration and acoustic radiation from the limited cylindrical pipe shell has been established. The pipe shell’s modes have been analyzed by the finite element modal analysis and experimental modal analysis. The modal analysis results with ANSYS FEM software will be imported into BEM software SYSNOIS, then under the fluid - structure coupling radiation using the software BEM SYSNOISE calculates the pipeline model’s sound radiated power level and studies the different restrictions、thickness and damping for the effects of the pipe vibration and acoustic radiation. Some suggestions which can reduce structural vibration and acoustic radiation are given out. |
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| Keywords: | SYSNOISE |
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