發(fā)布時(shí)間：2018-06-19 03:44

  本文選題：聚氨酯彈性體 + 夾層復(fù)合結(jié)構(gòu)　； 參考：《復(fù)合材料學(xué)報(bào)》2017年03期

【摘要】：針對(duì)聚氨酯彈性體的隔板夾層結(jié)構(gòu),闡述了多種不同的等效參數(shù)計(jì)算方法,并對(duì)等效參數(shù)進(jìn)行計(jì)算。首先討論和計(jì)算了不考慮結(jié)構(gòu)剪切變形時(shí)的整體結(jié)構(gòu)等效參數(shù)計(jì)算方法,將整體夾層結(jié)構(gòu)等效為正交各向異性薄板,給出了考慮夾芯抗彎剛度的整體剛度系數(shù)表達(dá)式。其次,在考慮夾層結(jié)構(gòu)夾芯存在剪切變形的情況下,推導(dǎo)了由分隔隔板和聚氨酯彈性體組成的夾芯胞元的等效彈性常數(shù);最后,使用基于應(yīng)變能密度等效分析的有限元方法對(duì)夾芯胞元等效彈性常數(shù)進(jìn)行計(jì)算,并與理論分析結(jié)果進(jìn)行對(duì)比,二者誤差在10%以內(nèi)。
[Abstract]:According to the partition sandwich structure of polyurethane elastomer, several kinds of calculation methods of equivalent parameters are expounded, and the equivalent parameters are calculated. In this paper, the calculation method of the equivalent parameters of the whole structure without considering the shear deformation of the structure is discussed and calculated, and the integral sandwich structure is equivalent to the orthotropic thin plate, and the expression of the integral stiffness coefficient considering the bending stiffness of the sandwich core is given. Secondly, considering the shear deformation of sandwich core, the equivalent elastic constant of sandwich cell composed of separator and polyurethane elastomer is derived. The finite element method based on the strain energy density equivalent analysis is used to calculate the equivalent elastic constant of the sandwich cell, and the results are compared with the theoretical analysis results. The error between the two methods is less than 10%.
【作者單位】： 哈爾濱工程大學(xué)航天與建筑工程學(xué)院;沈陽發(fā)動(dòng)機(jī)設(shè)計(jì)研究所強(qiáng)度設(shè)計(jì)室;
【基金】：國家自然科學(xué)基金(51409056) 黑龍江省自然科學(xué)基金(E2015047) 哈爾濱工程大學(xué)中央高�；�本科研業(yè)務(wù)費(fèi)專項(xiàng)基金項(xiàng)目(HEU20160202)
【分類號(hào)】：TB332

【參考文獻(xiàn)】

相關(guān)期刊論文 前3條

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2 王紅霞;王德禹;李U，

本文編號(hào)：2038269