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本文首先介绍了该类阻尼器动力特性的主要试验结果,这些重要结果为阻尼器的设计应用奠定了基础;双稳态跳跃现象刻划了阻尼器的高度非线性特点,实验结果展示了同心型和非同心型阻尼器的双稳态跳跃过程和以是否发生质心转向来判别双稳态跳跃和临界转速的振幅突变;为考察阻尼器的结构完整性,作了实机寿命试车,256小时的长期试车证明,挤压油膜阻尼器不但具有良好的减振效果,而且经得起在恶劣工况下的长期试车的考验。
In this paper, the main results of the dynamic characteristics of this type of damper are introduced. These important results provide the basis for the design and application of the damper. The bistable jumping phenomenon characterizes the highly nonlinear characteristics of the damper. The experimental results show that the concentric And non-concentric damper bistable jump process and whether the occurrence of centroid steering to determine the bistable jump and the critical speed of the amplitude mutation; in order to investigate the structural integrity of the damper, made a real machine life test, 256 hours Long-term test proved that squeeze film damper not only has good damping effect, but also stand the test of long-term test in harsh conditions.