藍軍
(樂山師范學院實驗設備處,四川 樂山 614004)
摘要:實驗儀器測試平臺是準確測量的重要物質基礎,它受到的振動可歸結為單自由度的振動問題。通過對單自由度振動系統特性分析,分析相關抗振因子特性,從而得出實驗測試平臺的抗振設計基本原理,即只有當外激頻率fj大于系統頻率f0的2倍時,抗振系統才有效;進而從材料、結構及措施上進行抗振介紹,以全息照相實驗平臺的抗振動設計為例作了測算和設計。
關鍵詞:實驗儀器設備;測試平臺;單自由度;振動系統;全息照相;抗振設計
中圖分類號:TH702 文獻標識碼:A 文章編號:1672-4984(2006)03-0056-03
Anti-vibration design for experiment instrument testing bench
LAN Jun
(Leshan Normal College,Leshan 614004,China)
Abstract: Experiment instrument testing bench is important matter foundation for accurate measurement. Vibration comes from a single variance . This paper analyzed system feature and correlative anti-vibration factor of the single variance and came to the conclusion of anti-ibration design basic principle for experiment instruent testing bench. Anti-vibration system is valid when exciting frequecy is greater than 2 multiple system inherent frequency. This paper also introduced antivibration design for material, structure and finally, gave the calculation and design taking holograph experiment testing bench as example.
Key words: Experiment instrument; Testing center; Single variance; Vibrational system; Holograph; Anti- vibration design.