摘要
气囊隔振器横向及垂向刚度具有强耦合特性,难以独立调控,而配置了弹性垫板的复合结构气囊隔振器可实现刚度的解耦调控,以满足高效隔振装置精细化设计需求。为此,首先建立了一种复合结构气囊隔振器刚度模型,详细讨论了弹性垫板结构尺寸,弹性模量等特性参数对刚度的影响;然后,基于刚度模型,以固有频率及横垂刚度比为解耦设计指标,提出了一种基于弹性垫板参数调控的复合结构气囊隔振器设计方法;最后,依据设计方法设计试制了三型复合气囊并开展了试验研究。试验结果表明:所提方法可在较宽范围内调控复合结构气囊隔振器的横向刚度,并保持垂向固有频率稳定,提高了设计灵活性,具有较强的工程应用价值。
The horizontal and vertical stiffness of air spring vibration isolator has strong coupling cha-racteristics,which makes it difficult to regulate the two stiffnesses independently.However,the com-posite structure air spring(CSAS)vibration isolator equipped with elastic plate facilitates the stiffness decoupling to meet the precise design requirements of efficient vibration isolation devices.A stiffness analysis model of CSAS was established firstly so that the influences of the characteristic parameters on the stiffness were discussed in detail,such as the size and the elastic modulus of the plate.And then,based on the analysis results,using the natural frequency and the ratio of horizontal to vertical stiffness as decoupling design targets,a design method for CSAS based on the regulation of elastic plate parameters was proposed.Finally,according to the design method,three types of CSAS were produced and tested.Experimental results indicate that the proposed method can control the horizon-tal stiffness of the CSAS within a wider range and maintain a stable vertical natural frequency.The me-thod improves the design flexibility and shows promising value in engineering application.
作者
何孟轩
王明刚
施亮
程光辉
HE Mengxuan;WANG Minggang;SHI Liang;CHENG Guanghui(Naval Univ.of Engineering,Wuhan 430033,China;705 Research Institute Kunming Branch,China State Shipbuilding Corporation,Kunming 650101,China)
出处
《海军工程大学学报》
北大核心
2025年第4期98-105,共8页
Journal of Naval University of Engineering
关键词
气囊隔振器
复合结构
刚度解耦
air spring vibration isolator
composite structure
stiffness decoupling
