| 超低频标准振动台波形失真度近似解析解 |
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| 引用本文： | 魏燕定. 超低频标准振动台波形失真度近似解析解[J]. 振动与冲击, 2000, 19(3): 49-51 |
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| 作者姓名： | 魏燕定 |
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| 作者单位： | 浙江大学机械系生产所,流体传动及控制国家重点实验室,杭州,310027 |
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| 基金项目： | 浙江大学流体传动及控制国家重点实验室开放基金 |
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| 摘 要： | 波形失真度是稳态正弦标准振动台计量中影响计量校准精度最主要的因素。本文在国内已有的低频标准振动台研究基础上，首次建立了超低频标准振动台的动力学方程，并求出了其近似解析解和波形失真度计算公式。通过对波形失真度公式的分析，他运动阻尼、振幅、激励频率、支承弹簧非线性因素对波形失真度的影响。为今后我国研制超低频标准振动台提供了一些理论指导。
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| 关 键 词： | 超低频标准振动台 波形失真度 近似解析解 |
| 修稿时间： | 1999-10-26 |
APPROXIMATE ANALYTICAL SOLUTION OF WAVEFORM DISTORTION OF ULTRA-LOW FREQUENCY STANDARD VIBRATOR |
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| Wei Yanding. APPROXIMATE ANALYTICAL SOLUTION OF WAVEFORM DISTORTION OF ULTRA-LOW FREQUENCY STANDARD VIBRATOR[J]. Journal of Vibration and Shock, 2000, 19(3): 49-51 |
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| Authors: | Wei Yanding |
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| Abstract: | Waveform distortion is a primary factor affecting the measure precision of steady sine standard vibration calibration system.In the paper,based on the analysis of conventional low frequency standard vibrator,kinetic equation of ultra-low frequency standard vibrator is studied,and the approximate expression and formula for waveform distortion are given Analyzing this formula,the factors affecting waveform distortion such as damping,vibration amplitude,frequency,nonlinear coefficient of suspension spring are detailedly discussed,The conclusions are help ful to develop ultra-low frequency standard vibrator in future. |
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| Keywords: | ultra-low frequency standard vibrator waveform distortion nonlinear equation |
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