摘要: |
介绍了存在阻尼条件下物体转动惯量测量的数学模型——线性微分方程模型;利用气浮转动惯量测量系统对线性模型进行了实验验证。结果表明空气阻尼对大尺寸复杂形状物体的转动惯量测量影响较大;线性模型的补偿效果有限,对于阻尼条件下的高精度的转动惯量测量,有必要进行新的补偿算法的研究。 |
关键词: 大尺寸复杂形状;转动惯量;阻尼 |
基金项目:“十二五”技术基础研究项目 |
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Research on Measuring Technology of Moment of Inertia for Objects with Complex Shape |
Zhang Xiaolin1, Tang Song1, Wang Jun1, Zhao Yan1, Tang Wenyan1, Chen Jincun2, Liang Jufeng2, Hao Wenlong2
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1. Harbin Institute of Technology, Harbin 150001;2. China Academy of Launch Vehicle Technology, Beijing 100076
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Abstract: |
A mathematical model, linear differential equation model, for measuring the moment of inertia of objects under damp conditions is introduced. By utilizing the air-floatation inertia measurement system, experimental validation of the linear model is carried out. The results show that air damping has a significant impact on measuring the moment of inertia of objects with large scale and complex shape. For the high-precision inertia measurement under damp conditions, the compensation affects of the previous linear model are limited and research on the new compensation method is needed. |
Key words: large scale complex shape;moment of inertia;damping |