本文選題：飛機(jī)防冰除冰　切入點(diǎn)：電脈沖除冰(EIDI)　出處：《北京航空航天大學(xué)學(xué)報(bào)》2016年10期 　論文類型：期刊論文

【摘要】：電脈沖除冰(EIDI)作為一種電動(dòng)-機(jī)械式除冰系統(tǒng),具有廣闊的應(yīng)用前景。本文采用線圈和金屬平板組成的電脈沖系統(tǒng)作為EIDI結(jié)構(gòu)動(dòng)力學(xué)模型的研究對(duì)象,基于有限元分析軟件MSC/NASTRAN,建立了一套針對(duì)典型平板-線圈結(jié)構(gòu)的EIDI系統(tǒng)結(jié)構(gòu)動(dòng)力學(xué)仿真模型,研究了模型的固有特性(模態(tài)與頻率)與時(shí)域響應(yīng)分析,并開展了仿真模型的實(shí)驗(yàn)驗(yàn)證。研究了基于模型的EIDI系統(tǒng)結(jié)構(gòu)動(dòng)力學(xué)特性,重點(diǎn)關(guān)注最大應(yīng)變和位移在空間的分布規(guī)律,并討論了電容、電壓等放電參數(shù)的影響。研究表明,電脈沖作用下,平板最大位移分布特性近似“馬鞍型”,提升電容和電壓可以增大脈沖力峰值和結(jié)構(gòu)變形量,同時(shí)減小固定位置處的應(yīng)變。
[Abstract]:As an electric-mechanical deicing system, the electric pulse deicing system (EIDI) has a broad application prospect. In this paper, the electric pulse system composed of coil and metal plate is used as the research object of the dynamic model of EIDI structure. Based on the finite element analysis software MSC-NASTRAN, a dynamic simulation model of EIDI system is established for a typical plate-coil structure. The inherent characteristics (modal and frequency) and time-domain response analysis of the model are studied. The dynamic characteristics of the EIDI system based on the model are studied, the distribution of maximum strain and displacement in space is focused on, and the effects of discharge parameters such as capacitance and voltage are discussed. Under the action of electric pulse, the maximum displacement distribution of the plate is similar to that of "saddle type". Lifting capacitance and voltage can increase the peak value of pulse force and the deformation of the structure, and decrease the strain at the fixed position at the same time.
【作者單位】： 北京航空航天大學(xué)航空科學(xué)與工程學(xué)院;中國空間技術(shù)研究院;
【分類號(hào)】：V244.1+5

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