【摘要】：摩擦在日常生產(chǎn)實(shí)踐中其扮演著雙面角色,沒(méi)有它,人們“寸步難行”,有了它,磨損等一系列問(wèn)題接踵而至,為了能夠駕馭這一匹“駿馬”,人們對(duì)其進(jìn)行了長(zhǎng)期的研究。隨著近幾年仿生學(xué)的發(fā)展,一部分科研工作者業(yè)已著手將仿生學(xué)和摩擦學(xué)研究結(jié)合,仿生非光滑表面結(jié)構(gòu)即在此大背景下面產(chǎn)生,現(xiàn)有的研究結(jié)果表明仿生非光滑表面結(jié)構(gòu)在提高摩擦學(xué)性能方面有著不凡的表現(xiàn)。 在仿生非光滑表面結(jié)構(gòu)的摩擦學(xué)性能方面的研究工作中,對(duì)于耐磨性研究則相對(duì)較少�，F(xiàn)有對(duì)仿生非光滑表面耐磨性能研究往往集中在理論、仿真和標(biāo)準(zhǔn)試驗(yàn)機(jī)試驗(yàn)的研究方面,很少根據(jù)實(shí)際工況條件展開(kāi)相關(guān)研究；磨損變化伴隨著摩擦副的生命周期,現(xiàn)有在耐磨性方面的研究存在著試驗(yàn)周期過(guò)短、數(shù)據(jù)采集量過(guò)少等問(wèn)題；同時(shí)在對(duì)仿生非光滑表面耐磨機(jī)理的探討方面往往止于概念,例如其“儲(chǔ)屑”作用等,只是概念的提出,并未深入挖掘其內(nèi)在機(jī)理以及相關(guān)聯(lián)的作用。 本文針對(duì)上述研究現(xiàn)狀,圍繞往復(fù)運(yùn)動(dòng)下仿生非光滑表面耐磨性能展開(kāi)相應(yīng)的研究,研究工作主要包括：1、研發(fā)一款適用于直線往復(fù)運(yùn)動(dòng)的專用摩擦磨損試驗(yàn)機(jī)；2、進(jìn)行試件摩擦磨損試驗(yàn)并對(duì)試驗(yàn)數(shù)據(jù)統(tǒng)計(jì)分析；3、探討往復(fù)運(yùn)動(dòng)下仿生非光滑表面耐磨作用機(jī)理。 首先,根據(jù)機(jī)械系統(tǒng)的創(chuàng)新設(shè)計(jì)方法原理,構(gòu)建了基于直線往復(fù)運(yùn)動(dòng)的摩擦磨損試驗(yàn)機(jī)的功能結(jié)構(gòu)圖,形成一種新式直線往復(fù)式摩擦磨損試驗(yàn)機(jī)的設(shè)計(jì)方案。對(duì)于摩擦磨損試驗(yàn)機(jī)的機(jī)械系統(tǒng),進(jìn)行了結(jié)構(gòu)設(shè)計(jì)、導(dǎo)軌選型等工作,并最終制造裝配出符合要求的摩擦磨損試驗(yàn)機(jī)。 其次,擬定試驗(yàn)方案并加工相關(guān)試驗(yàn)試件,在充分準(zhǔn)備的情況下開(kāi)展往復(fù)運(yùn)動(dòng)下仿生非光滑表面的摩擦磨損試驗(yàn)并對(duì)數(shù)據(jù)進(jìn)行采集統(tǒng)計(jì)分析。 最后,就非光滑表面結(jié)構(gòu)“平整”作用、“儲(chǔ)屑”作用、對(duì)流體動(dòng)力潤(rùn)滑的影響、“變形”作用、結(jié)構(gòu)參數(shù)影響以及在全生命周期中的作用對(duì)往復(fù)運(yùn)動(dòng)下仿生非光滑表面耐磨作用機(jī)理進(jìn)行了研究。 本文主要通過(guò)試驗(yàn)與機(jī)理探討對(duì)往復(fù)運(yùn)動(dòng)下仿生非光滑表面耐磨性能進(jìn)行研究,在具體的工作內(nèi)容中,試驗(yàn)機(jī)的成功開(kāi)發(fā)使得試驗(yàn)環(huán)境更貼近于真實(shí)的使用工況；充足的試驗(yàn)周期保證了試驗(yàn)數(shù)據(jù)的采集量以及穩(wěn)定性,為后期作用機(jī)理探討提供了可靠的基礎(chǔ)數(shù)據(jù)；結(jié)合試驗(yàn)數(shù)據(jù)及相關(guān)研究成果對(duì)仿生非光滑表面耐磨作用機(jī)理的深入探討對(duì)今后仿生非光滑表面的研究工作具有參考意義。
[Abstract]:Friction plays a double-sided role in daily production practice. Without it, people are difficult to walk, with it, wear and tear and so on a series of problems ensue, in order to be able to control this "horse", people have carried on a long-term research to it. With the development of bionics in recent years, some researchers have begun to combine bionics and tribology research, and the bionic non-smooth surface structure is produced under this background. The existing research results show that bionic non-smooth surface structure has a remarkable performance in improving tribological properties. In the research work of tribological properties of biomimetic non-smooth surface structure, there is relatively little research on wear resistance. The existing research on the wear resistance of bionic non-smooth surface is usually focused on the theoretical, simulation and standard testing machine tests, but few researches are carried out according to the actual operating conditions. The wear change is accompanied by the life cycle of friction pairs. There are some problems in the research of wear resistance, such as too short test cycle, too little data collection and so on. At the same time, the discussion on the wear-resisting mechanism of bionic non-smooth surface is often limited to the concept, such as its "chip storage" effect, etc., but the concept is only put forward, and the internal mechanism and the related function are not explored deeply. In view of the above-mentioned research situation, the corresponding research on the wear resistance of bionic non-smooth surface under reciprocating motion is carried out. The research work mainly includes: 1. A special friction and wear tester suitable for linear reciprocating motion is developed; 2. The friction and wear tests of the specimens are carried out and the experimental data are statistically analyzed. 3. The mechanism of wear resistance of bionic non-smooth surfaces under reciprocating motion is discussed. Firstly, according to the principle of innovative design method of mechanical system, the function and structure diagram of friction and wear tester based on linear reciprocating motion is constructed, and a new design scheme of linear reciprocating friction and wear tester is formed. For the mechanical system of friction and wear testing machine, the structure design, rail selection and so on are carried out. Finally, the friction and wear testing machine is manufactured and assembled in accordance with the requirements of friction and wear testing machine. Secondly, the test scheme is worked out and the related test pieces are processed. The friction and wear tests of the bionic non-smooth surface under reciprocating motion are carried out and the data are collected and analyzed. Finally, on the non-smooth surface structure "smooth" action, "chip storage" effect on hydrodynamic lubrication, "deformation" effect, The mechanism of wear resistance of bionic non-smooth surface under reciprocating motion is studied by the influence of structural parameters and its role in the whole life cycle. In this paper, the wear resistance of bionic and non-smooth surface under reciprocating motion is studied by experiment and mechanism discussion. In the concrete work, the successful development of testing machine makes the test environment more close to the real working condition. Sufficient test cycle ensures the collection and stability of test data, and provides reliable basic data for the discussion of the mechanism of action in later stage. Combined with the experimental data and related research results, the in-depth study on the mechanism of wear resistance of biomimetic non-smooth surfaces is of reference significance for the future research work on biomimetic non-smooth surfaces.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TH117

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