本文選題：金屬絲網(wǎng)減振器 + 靜動(dòng)態(tài)試驗(yàn)��； 參考：《中北大學(xué)》2017年碩士論文

【摘要】：對(duì)于大功率柴油機(jī),研究與設(shè)計(jì)出一個(gè)減振性能良好的柴油機(jī)減振系統(tǒng),可以有效的降低和改善柴油機(jī)的振動(dòng)向支撐基礎(chǔ)的傳遞。本文針對(duì)某型號(hào)軍用裝甲車(chē)輛大功率柴油機(jī)重量大、工作環(huán)境惡劣、設(shè)計(jì)空間小等因素,開(kāi)發(fā)研制出金屬絲網(wǎng)減振器進(jìn)行減振和支撐,由于其具有承載能力強(qiáng)、阻尼系數(shù)大、耐高溫、抗腐蝕、防輻射、以及壽命長(zhǎng)等優(yōu)點(diǎn),極大的提高了減振系統(tǒng)的減振能力。本文通過(guò)采用奧氏體不銹鋼絲作為金屬絲網(wǎng)減振器的減振材料,對(duì)其進(jìn)行加工編織,通過(guò)螺旋、網(wǎng)絡(luò)鋪設(shè)、勾連、沖壓成型,最后形成所需要的減振元件——網(wǎng)塊,分別對(duì)金屬絲網(wǎng)減振器靜動(dòng)態(tài)試驗(yàn)分析,得到:金屬絲網(wǎng)減振器的剛度特性,即載荷—位移曲線,呈現(xiàn)先軟后硬的變化趨勢(shì),而頻響曲線會(huì)發(fā)生跳躍和諧振峰漂移的現(xiàn)象。并將相對(duì)密度、絲徑、預(yù)變形等結(jié)構(gòu)參數(shù)考慮其中,分析它們對(duì)剛度、阻尼特性以及傳遞率的影響,從中選取合適的針對(duì)不同型號(hào)和工況下的結(jié)構(gòu)參數(shù)�；诮饘俳z網(wǎng)減振器的非線性硬特性以及遲滯現(xiàn)象,對(duì)其進(jìn)行理論分析與研究,將變剛度和變阻尼進(jìn)行線性等效,解釋了頻響曲線發(fā)生跳躍和諧振峰漂移的現(xiàn)象,并根據(jù)非線性本構(gòu)關(guān)系,建立金屬絲網(wǎng)減振器的數(shù)學(xué)模型,進(jìn)行參數(shù)辨識(shí)和計(jì)算,最后通過(guò)響應(yīng)特性的有效驗(yàn)證,得出其模型能夠很好的反應(yīng)實(shí)際工況和工程應(yīng)用要求。
[Abstract]:For high power diesel engine, a good damping system for diesel engine is studied and designed, which can effectively reduce and improve the transmission of diesel engine vibration to the supporting foundation. Aiming at the factors of large weight, bad working environment and small design space of a certain type of military armored vehicle high power diesel engine, this paper develops a wire mesh damper for vibration absorption and support, because of its strong bearing capacity and large damping coefficient. High temperature resistance, corrosion resistance, radiation resistance, and long life, greatly improve the vibration absorption system. In this paper, the austenitic stainless steel wire is used as the vibration absorber material of the wire mesh absorber, which is machined and braided. Finally, the necessary damping element, the mesh block, is formed by spiral, network laying, cogging, stamping forming. The static and dynamic experiments of wire mesh absorber show that the stiffness characteristics of wire mesh absorber, i.e. load-displacement curve, show the change trend of first soft and then hard, and the frequency response curve will jump and resonance peak drift. The relative density, wire diameter, pre-deformation and other structural parameters are taken into account, and their effects on stiffness, damping characteristics and transfer rate are analyzed, and the appropriate structural parameters are selected for different types and working conditions. Based on the nonlinear hard characteristics and hysteresis of wire mesh absorber, the linear equivalent of variable stiffness and variable damping is analyzed and studied theoretically, which explains the phenomenon of frequency response curve jumping and resonant peak drift. According to the nonlinear constitutive relation, the mathematical model of the wire mesh damper is established, and the parameter identification and calculation are carried out. Finally, through the effective verification of the response characteristics, it is concluded that the model can well respond to the actual working conditions and engineering application requirements.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TK423;TB535

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 曹鳳利;白鴻柏;李冬偉;任國(guó)全;李國(guó)璋;;基于細(xì)觀力學(xué)方法的金屬橡膠遲滯特性本構(gòu)模型（英文）[J];稀有金屬材料與工程;2016年01期

2 李玉龍;白鴻柏;何忠波;路純紅;;金屬橡膠非線性隔振器試驗(yàn)研究與參數(shù)分析[J];噪聲與振動(dòng)控制;2015年02期

3 李拓;白鴻柏;路純紅;;編織-嵌槽型金屬橡膠制備工藝及試驗(yàn)研究[J];機(jī)械科學(xué)與技術(shù);2015年03期

4 馬艷紅;仝小龍;朱彬;張大義;洪杰;;金屬橡膠熱物理性能理論與試驗(yàn)研究[J];物理學(xué)報(bào);2013年04期

5 李玉龍;何忠波;白鴻柏;李冬偉;郝慧榮;席建敏;;金屬橡膠的研究及應(yīng)用進(jìn)展[J];兵器材料科學(xué)與工程;2011年01期

6 楊業(yè);樊文欣;田靜宜;;金屬橡膠減振器的設(shè)計(jì)[J];煤炭技術(shù);2010年12期

7 國(guó)亞?wèn)|;閆輝;夏宇宏;姜洪源;;金屬橡膠濾材過(guò)濾精度研究[J];功能材料;2010年08期

8 樊文欣;楊桂通;趙俊生;李雙虎;;金屬橡膠減振器非線性建模及仿真研究[J];車(chē)用發(fā)動(dòng)機(jī);2009年05期

9 郝慧榮;白鴻柏;劉紅;劉瑜;;金屬橡膠異型絲熱軋電加熱法的溫度控制[J];新技術(shù)新工藝;2008年01期

10 董秀萍;劉國(guó)權(quán);楊建春;白鴻柏;;金屬橡膠用冷拉拔奧氏體不銹鋼絲的微觀組織[J];航空材料學(xué)報(bào);2007年06期

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