【摘要】：動(dòng)剛度特性是減振器設(shè)計(jì)及選型的重要指標(biāo),通過改變減振器剛度和阻尼,使系統(tǒng)避開共振區(qū)間,以發(fā)揮減振器最佳減振效果是目前的研究重點(diǎn)。針對目前減振器動(dòng)剛度特性研究較少的情況,提出一種減振器的動(dòng)剛度計(jì)算方法。通過靜力實(shí)驗(yàn)獲取加載和卸載的變形-力曲線,擬合得出減振器靜剛度值;根據(jù)靜剛度值和單自由度系統(tǒng)動(dòng)剛度計(jì)算公式獲得動(dòng)剛度隨頻率變化規(guī)律;設(shè)計(jì)減振器動(dòng)剛度驗(yàn)證實(shí)驗(yàn)。研究結(jié)果表明:該動(dòng)剛度計(jì)算結(jié)果和實(shí)驗(yàn)結(jié)果吻合情況較好,誤差平均值在6%以內(nèi),可為實(shí)際工程的減振器選型及應(yīng)用提供參考。
[Abstract]:The dynamic stiffness characteristic is an important index in the design and selection of shock absorber. It is the focus of research at present to change the stiffness and damping of the absorber and make the system avoid the resonance section so as to give full play to the optimum damping effect of the absorber. In view of the lack of research on the dynamic stiffness characteristics of shock absorbers at present, a method for calculating the dynamic stiffness of shock absorbers is proposed. Through static experiment, the deformation-force curves of loading and unloading are obtained, and the static stiffness of shock absorber is obtained by fitting, and the dynamic stiffness changes with frequency according to static stiffness value and dynamic stiffness calculation formula of single degree of freedom system. The dynamic stiffness verification experiment of shock absorber is designed. The results show that the calculated results of the dynamic stiffness are in good agreement with the experimental results, and the average error is less than 6%, which can be used as a reference for the selection and application of shock absorbers in practical engineering.
【作者單位】： 西安應(yīng)用光學(xué)研究所;
【基金】：國家國防科技工業(yè)局技術(shù)基礎(chǔ)科研項(xiàng)目(A0920132001) 兵器“十二五”預(yù)先研究基金項(xiàng)目(62201070139) 高等院校協(xié)同創(chuàng)新合作專項(xiàng)項(xiàng)目(KH201504)
【分類號(hào)】：TB535

【相似文獻(xiàn)】

相關(guān)期刊論文 前1條

1 廖飛紅;李小平;邵新宇;;精密運(yùn)動(dòng)臺(tái)主動(dòng)減振與重力補(bǔ)償技術(shù)的研究[J];機(jī)械工程學(xué)報(bào);2014年07期

，

本文編號(hào)：2422135