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本文在分析大转动惯量固体的高加速度承载实验装置特性的基础上,结合刚性传动的动力学特性设计方法,在全面分析接触配合动态特性的基础上,提出了可反映实际工作情况的边界条件简化原则,通过有限元方法建立了整机动力学有限元计算模型,并结合具体项目需求通过对整机模态、谐响应和瞬态动力响应的计算与分析,论证了方案的合理性;同时得出了改善整机动态特性的具体措施,从而为适用于大转动惯量固体的高加速度承载实验装置设计提供技术参考。
Based on the analysis of the characteristics of the high acceleration load bearing device with large inertia mass and the dynamic characteristics design method of rigid transmission, this paper presents a simplified boundary condition that can reflect the actual working conditions based on a comprehensive analysis of the dynamic characteristics of contact. Principle, the finite element method is used to establish the finite element model of the complete machine dynamics. Based on the requirements of the specific project, the rationality of the scheme is demonstrated through the calculation and analysis of modal, harmonic response and transient dynamic response of the complete machine. The specific measures to improve the dynamic characteristics of the whole machine are provided so as to provide a technical reference for the design of a high acceleration bearing experimental device suitable for a large mass of inertia.