研究微推力测量平台极低频噪声特征的研究
Liexiao Dong1,2,3, Shixu Lu1,2,3, Luxiang Xu1
1School of Fundamental Physics and Mathematical Sciences, Key Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province, Taiji Laboratory for Gravitational Wave Universe, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China.
Micromachines
|April 27, 2024
概括
优化结构参数,如转轴厚度和摆杆长度,可以最大限度地降低微推力测量平台 (MTMP) 上的地面振动影响. 这提高了MTMP的分辨率和稳定性,用于精确的推力测量.
科学领域:
- 机械工程 机械工程
- 计量学 计量学 计量学
- 振动分析 振动分析
背景情况:
- 微推力测量平台 (MTMP) 对于敏感测量至关重要.
- 地面随机振动对MTMP的分辨率和稳定性构成重大挑战.
- 优化结构参数是减轻振动影响的关键.
研究的目的:
- 优化MTMP的关键结构参数.
- 分析这些参数对系统分辨率和振动下的稳定性的影响.
- 为了确定最小化振动影响的最佳配置.
主要方法:
- 为了参数优化,使用了数值模拟.
- 分析的重点是轴心厚度,摆杆长度和轴心结构.
- 模拟了两个不同的地面随机振动环境.
主要成果:
- 观察到最少的振动效应,轴心厚度为0.04毫米或0.2毫米,杆长度为2米.
- 在0.1mHz时,达到0.0057μN/Hz的分辨率.
- 在连续的双轴结构中增加板块之间的距离进一步优化了性能.
结论:
- 特定的结构参数显著影响MTMP在振动下的性能.
- 确定了最佳配置,以提高MTMP的分辨率和稳定性.
- 结果为MTMP的工程设计提供了有价值的数据.
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