本文關(guān)鍵詞：充氣尾翼濕模態(tài)分析與試驗(yàn)研究　出處：《振動(dòng)與沖擊》2016年15期 　論文類型：期刊論文

  更多相關(guān)文章： 充氣尾翼 空氣附加質(zhì)量 UEL 干模態(tài) 濕模態(tài)

【摘要】：為分析復(fù)雜形狀充氣尾翼的模態(tài)特性,基于勢(shì)流理論和預(yù)應(yīng)力剛化模型,提出采用單元尺度的三角形單元等效單元面積特征參數(shù),建立三角形單元附加質(zhì)量的計(jì)算方法,應(yīng)用Abaqus的UEL二次開發(fā)建立了數(shù)值分析方法。通過經(jīng)典的平面圓形薄膜試驗(yàn)驗(yàn)證了方法,并對(duì)復(fù)雜形狀充氣尾翼的模態(tài)進(jìn)行了分析與試驗(yàn),兩者結(jié)果吻合較好。對(duì)飛艇等復(fù)雜充氣結(jié)構(gòu)模態(tài)特性研究具有參考價(jià)值。
[Abstract]:In order to analyze the modal characteristics of the aerated tail wing with complex shape, based on the potential flow theory and the prestress rigidization model, the equivalent area characteristic parameters of triangular elements with element size are proposed. The calculation method of the additional mass of triangle element is established, and the numerical analysis method is established by using Abaqus's UEL secondary development. The method is verified by classical planar circular film test. The modal analysis and test of the aerated tail wing with complex shape are carried out and the results are in good agreement with each other. It is valuable to study the modal characteristics of the airship and other complicated inflatable structures.
【作者單位】： 上海交通大學(xué)空間結(jié)構(gòu)研究中心;
【基金】：國(guó)家自然科學(xué)基金(51278299;51478264)
【分類號(hào)】：V214
【正文快照】： 充氣尾翼是典型氣囊式充氣膜結(jié)構(gòu),在對(duì)其進(jìn)行風(fēng)振響應(yīng)分析時(shí),由于膜結(jié)構(gòu)柔度較大,當(dāng)結(jié)構(gòu)自身振動(dòng)時(shí),結(jié)構(gòu)周圍的流體也隨之振動(dòng)。在研究結(jié)構(gòu)自振特性時(shí),可將流體的作用作為附加質(zhì)量進(jìn)行分析,與輕質(zhì)薄膜結(jié)構(gòu)一致,附加質(zhì)量對(duì)充氣膜結(jié)構(gòu)的振動(dòng)模態(tài)的影響十分顯著,大型膜結(jié)構(gòu)的實(shí)測(cè)，

本文編號(hào)：1383842