機車振動論文：機車車輛多點激勵模態(tài)試驗系統(tǒng)研究-在線瀏覽
2024-08-08 00:58本頁面
【正文】 模態(tài)試驗系統(tǒng)。最后,應用研制的模態(tài)試驗系統(tǒng)對二系懸掛模型車進行了多點協(xié)調激勵模態(tài)試驗,得到了模型車各階固有頻率及振型?！居⑽恼縒ith the increasing velocity of lootive train, the train vibration also has increased, thus the structure fatigue life is influenced. It is meaningful to study the vibration characteristics of structure, through which we can optimize the structure of vehicles, restrain the overlarge vibration and improve the performance of vehicles. Modal test is one of the major means to obtain structural vibration characteristics. Multipoint coordinated excitation modal test can accurately identify the modal parameters of railway vehicles and improve the modal purity at the same time. Taking the vehicle as the object of study, this paper developed a multipoint coordinated excitation system, and made the structural dynamic characteristics pa
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