本文選題：桿　切入點(diǎn)：軸向交變載荷　出處：《機(jī)械強(qiáng)度》2016年06期 　論文類型：期刊論文

【摘要】：拉壓結(jié)構(gòu)桿在結(jié)構(gòu)工程中廣泛存在,是重要的承載元件。但因各種誤差的存在拉壓桿常處于偏心拉壓受載狀態(tài)中,研究其動(dòng)態(tài)響應(yīng)是保證其正確設(shè)計(jì)的理論基礎(chǔ)。針對(duì)等截面直桿承受端部軸向偏心諧和軸向載荷作用時(shí)的動(dòng)態(tài)響應(yīng)問題進(jìn)行了研究,利用小變形假設(shè)和線性疊加原理將問題分解為兩個(gè)子問題,一個(gè)是軸向拉壓?jiǎn)栴},一個(gè)是彎曲問題。給出了細(xì)長(zhǎng)桿件軸向位移和平面彎曲撓度隨不同擾動(dòng)頻率的變化規(guī)律,為進(jìn)一步的動(dòng)態(tài)應(yīng)力計(jì)算奠定了基礎(chǔ),研究思路與應(yīng)用分離變量法和傅立葉積分變換技術(shù),對(duì)于研究桿件承受任意偏心軸向載荷和沿軸向分布荷載的動(dòng)態(tài)響應(yīng)問題具有重要指導(dǎo)意義。
[Abstract]:The strut of tension and compression structure widely exists in structural engineering and is an important bearing element. However, due to the existence of various errors, the strut is often in the state of eccentricity tension and compression. The research on the dynamic response is the theoretical basis to ensure the correct design. The dynamic response of the straight rod with equal cross section under the action of the eccentric axial harmonic and axial load at the end of the bar is studied. By using the assumption of small deformation and the principle of linear superposition, the problem is decomposed into two sub-problems, one is the axial tension and compression problem, the other is the bending problem. It lays a foundation for further dynamic stress calculation, and applies the method of separating variables and Fourier integral transform technique. It is of great significance to study the dynamic response of bars subjected to arbitrary eccentric axial loads and axial distributed loads.
【作者單位】： 煙臺(tái)汽車工程職業(yè)學(xué)院機(jī)電工程系;
【基金】：山東省科技攻關(guān)項(xiàng)目(2012G0030011)資助~~
【分類號(hào)】：O302

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本文編號(hào)：1647679