本文選題：油膜軸承襯套　切入點(diǎn)：分子動(dòng)力學(xué)　出處：《太原科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：油膜軸承廣泛應(yīng)用于重型機(jī)械、大型水利水電及航空航天工程等領(lǐng)域。襯套作為油膜軸承的核心部件,其結(jié)構(gòu)和運(yùn)行過程中的受力情況對(duì)油膜軸承的使用性能起著至關(guān)重要的作用。作為油膜軸承中最易損的零件,襯套復(fù)合材料的結(jié)合問題容易導(dǎo)致襯套損壞。因此,對(duì)于復(fù)合材料油膜軸承襯套的結(jié)合性能研究有非常重要的意義。本文通過對(duì)襯套界面的微觀模擬分析,了解其界面結(jié)合的機(jī)理,研究其界面結(jié)合能的影響因素;通過對(duì)于襯套實(shí)際工作中所受的力場(chǎng)進(jìn)行分析,研究對(duì)于襯套應(yīng)力分布的影響因素;并通過試驗(yàn)對(duì)于新型復(fù)合材料襯套的結(jié)合性能進(jìn)行了研究。為提高襯套的結(jié)合性能提供了一定的參考。其主要研究?jī)?nèi)容如下:(1)基于分子動(dòng)力學(xué)理論,對(duì)于襯套復(fù)合材料的界面進(jìn)行了分子尺度的建模,對(duì)其進(jìn)行分子動(dòng)力學(xué)模擬并對(duì)界面結(jié)合能進(jìn)行計(jì)算,研究了襯套界面結(jié)合的機(jī)理。并對(duì)有無錫層對(duì)于界面結(jié)合性能的影響進(jìn)行了研究。模擬計(jì)算了不同厚度巴氏合金層界面的界面結(jié)合能,從微觀角度探究了巴氏合金厚度對(duì)于襯套界面結(jié)合性能的影響。(2)對(duì)于襯套實(shí)際的受力進(jìn)行了分析和計(jì)算,利用厚壁圓筒理論計(jì)算了襯套所受的裝配應(yīng)力,并通過襯套有限元模擬驗(yàn)證其計(jì)算的可靠性。對(duì)有無裝配應(yīng)力下的襯套進(jìn)行了分析,同時(shí)對(duì)于襯套有無摩擦力時(shí)的情況進(jìn)行了模擬,研究摩擦力對(duì)于襯套的影響。(3)對(duì)于不同掛金形狀表面的襯套進(jìn)行有限元模擬,觀察其對(duì)于襯套應(yīng)力分布等的影響。對(duì)于不同厚度巴氏合金層的襯套所受應(yīng)力情況進(jìn)行了模擬分析,研究了巴氏合金厚度對(duì)于襯套應(yīng)力的影響,研究結(jié)論對(duì)襯套結(jié)構(gòu)的設(shè)計(jì)和改進(jìn)提供了一定參考。(4)對(duì)于新型工藝下的復(fù)合材料油膜軸承襯套進(jìn)行結(jié)合性能的試驗(yàn)研究,選定合適的試驗(yàn)方法,對(duì)常用的兩種實(shí)驗(yàn)方法進(jìn)行了對(duì)比分析。對(duì)實(shí)驗(yàn)試樣進(jìn)行雙金屬結(jié)合強(qiáng)度破壞性試驗(yàn),測(cè)出其結(jié)合強(qiáng)度。同時(shí),與其它工藝的結(jié)合強(qiáng)度進(jìn)行了對(duì)比,并對(duì)襯套的制造工藝提出了建議。
[Abstract]:Oil film bearing is widely used in heavy machinery, large-scale water conservancy and hydropower and aerospace engineering and other fields. As the core component of the oil film bearing bushing, using the force performance of the structure and operation process of oil film bearing plays a vital role. As the most vulnerable in the oil film bearing parts, combined with the problem of Bush composite material is easy to cause the liner damage. Therefore, the composite material of the oil film bearing bushing has a very important significance in performance research. Through analysis of microscopic simulation of liner interface, understand the interface bonding mechanism of the interface factors can influence; through the bushing by the actual work in the field analysis of the factors influencing the stress distribution in bushing; and through the test was used to study the binding properties of new composite materials. In order to improve the performance of bushing bushing To provide a certain reference. The main research contents are as follows: (1) based on the theory of molecular dynamics, the liner composite interface for modeling molecular scale, molecular dynamics simulations are performed on the interface and the binding energy is calculated, studies the mechanism of interfacial bonding. Bush and the Wuxi layer on the interface bonding performance the effect of the different thickness of interface Babbitt layer interface simulation of binding energy, from the microscopic point of view to explore the impact of Babbitt Bush thickness on the interfacial properties. (2) the Bush actual stress was analyzed and calculated by calculating the bushing assembly stress using thick walled cylinder the theory of reliability and the liner finite element simulation verifies the computing. On the bush without assemblage stress are analyzed, at the same time for the situation when the Bush has no friction of die To study for the influence of friction lining. (3) were simulated for different liner hanging gold surfaces, to observe the effect of the stress distribution of the bushing. The bushing Babbit layer with different thickness on stress are analyzed by simulation, studied the effect of Ba's alloy thickness for lining should be the conclusion of the study on the lining structure design and provides some reference for improvement. (4) for the composite model under the process of oil film bearing bush are combined with the experimental study on the performance, select the appropriate test method, two kinds of methods are compared and analyzed. The experimental samples are double metal bonding strength destructive test, measure the bonding strength. At the same time, compared with a combination of strength and other processes, and proposes the manufacturing process of bushing.

【學(xué)位授予單位】：太原科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TH133.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 吳金勇;王順;;表面織構(gòu)凹坑對(duì)彈流潤(rùn)滑點(diǎn)接觸摩擦力和成膜能力影響研究[J];機(jī)械;2016年10期

2 黃慶學(xué);李璞;王建梅;桂海蓮;蔣莉;;宏微觀跨尺度下的錐套運(yùn)行力學(xué)機(jī)理研究[J];機(jī)械工程學(xué)報(bào);2016年14期

3 張小兵;劉偉成;;鍍層板料結(jié)合性能測(cè)試方法評(píng)價(jià)[J];機(jī)械工程與自動(dòng)化;2015年04期

4 王堯;王建梅;黃玉琴;項(xiàng)丹;;錫界面層最佳厚度試驗(yàn)與模擬研究[J];機(jī)械工程學(xué)報(bào);2015年20期

5 何書嶺;;AP1000核電機(jī)組汽輪機(jī)軸瓦的超聲檢測(cè)工藝[J];無損檢測(cè);2015年02期

6 馬立新;王建梅;薛亞文;唐亮;;油膜軸承試驗(yàn)臺(tái)負(fù)載特性模型的建立與計(jì)算[J];軸承;2014年11期

7 張建水;殷玉楓;趙肖敏;王瑋;;基于ANSYS的軸套過盈配合接觸分析[J];機(jī)械設(shè)計(jì);2014年05期

8 陳俊;李霞;郭峰;;面接觸油膜潤(rùn)滑摩擦力的測(cè)量[J];工程與試驗(yàn);2013年03期

9 武良龍;龍士國(guó);馬增勝;楊林;;基于鼓包法的薄膜材料界面結(jié)合能的測(cè)定[J];材料導(dǎo)報(bào);2013年14期

10 謝帆;荊建平;萬召;白曉林;;基于有限差分法的徑向滑動(dòng)軸承油膜壓力分布計(jì)算[J];潤(rùn)滑與密封;2012年02期

相關(guān)碩士學(xué)位論文 前4條

1 蔡敏;線材軋機(jī)油膜軸承運(yùn)行穩(wěn)定性研究[D];太原科技大學(xué);2015年

2 張艷娟;磁流體潤(rùn)滑油膜的數(shù)值求解與實(shí)驗(yàn)研究[D];太原科技大學(xué);2015年

3 王堯;油膜軸承巴氏合金與鋼體的結(jié)合強(qiáng)度理論與試驗(yàn)研究[D];太原科技大學(xué);2014年

4 馮垣潔;發(fā)動(dòng)機(jī)連桿襯套過盈裝配仿真及分析[D];中北大學(xué);2011年

，

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