本文選題：旋轉(zhuǎn)型行波超聲電機　切入點：產(chǎn)業(yè)化　出處：《南京航空航天大學(xué)》2014年博士論文　論文類型：學(xué)位論文

【摘要】：本課題是國家自然基金和廣東聯(lián)合基金項目“精密電子制造裝備關(guān)鍵理論與技術(shù)研究”(No.U0934004)的子課題之一,研究對象是行波型旋轉(zhuǎn)超聲電機在產(chǎn)業(yè)化進程中的若干關(guān)鍵技術(shù)。行波型旋轉(zhuǎn)超聲電機是最具代表性的一類超聲電機,在外部形狀和輸出方式等方面與傳統(tǒng)電磁電機比較接近,而直接驅(qū)動的運行機理又使其具備了許多優(yōu)良特性,是目前超聲電機應(yīng)用最廣泛的一種,因而也是產(chǎn)業(yè)化前景最好的一類產(chǎn)品。超聲電機作為多個學(xué)科交叉融合的高新技術(shù)產(chǎn)品,其發(fā)展歷史相對較短,在產(chǎn)業(yè)化進程中還遇到許多問題。本文以研制高輸出性能、低制造成本的超聲電機為最終目標,深入研究了行波型旋轉(zhuǎn)超聲電機在產(chǎn)業(yè)化進程中的若干關(guān)鍵技術(shù),主要研究內(nèi)容及其成果概括如下:(1)分析了行波型旋轉(zhuǎn)超聲電機的運行機理,指出了超聲電機在產(chǎn)業(yè)化進程中需要研究定子、驅(qū)動界面以及輸出轉(zhuǎn)矩的提高等方面的問題。(2)針對超聲電機定子的機電耦合關(guān)系,應(yīng)用有限元方法分析了定子的激勵效果。通過行波型旋轉(zhuǎn)超聲電機兩種典型定子的分析比較,總結(jié)了齒槽斜角對定子振動特性的影響。為解決定子批量制造中的兩相工作頻率一致性問題,分析了影響定子工作頻率的動力學(xué)參數(shù),提出了齒面徑向倒角的調(diào)節(jié)頻率方法。(3)為實現(xiàn)超聲電機定子的批量生產(chǎn),提出用先進電子制造中的回流焊方法代替?zhèn)鹘y(tǒng)的膠粘高溫固化方法。根據(jù)定子一體化聯(lián)接的實際要求,首次設(shè)計和搭建了超聲電機定子的回流焊試驗系統(tǒng),完成了定子彈性體/壓電陶瓷片的快速聯(lián)接。試驗研究了回流焊多個因素對焊接定子性能的影響,理論分析了直接關(guān)系到定子振動特性的聯(lián)接層參數(shù),還進一步研究了在六種焊料下焊接界面的力學(xué)性能與焊接后定子的振動特性,指出了影響焊接定子性能的主要因素之一是焊料材料。(4)根據(jù)超聲電機工作時定子微幅/高頻振動的特點,理論分析了超聲電機驅(qū)動界面輸出性能的影響因素,建立了基于表面形貌的等效剛度模型,總結(jié)了表面形貌參數(shù)對電機輸出性能的影響,歸納了減小驅(qū)動界面粘著區(qū)從而增加輸出性能的主要途徑,首次發(fā)現(xiàn)了轉(zhuǎn)子腹板剛度系數(shù)對驅(qū)動界面壓力的影響。試驗研究了交聯(lián)超高分子量聚乙烯復(fù)合材料的改性制備對力學(xué)參數(shù)的影響。從表面形貌的等效剛度模型、摩擦材料層的剪切變形、轉(zhuǎn)子剛度的組合匹配等理論方面進行了分析,探討了驅(qū)動界面采用這種新型摩擦材料能夠提高超聲電機輸出性能。(5)針對行波型旋轉(zhuǎn)超聲電機組合方式目前所存在的一系列問題,建立了雙定/轉(zhuǎn)子超聲電機的軸向振動模型,論證了兩組定/轉(zhuǎn)子之間發(fā)生軸向振動耦合與振動能量傳遞的可能性。按照振動隔離理論,提出并研制了共階梯軸雙定/轉(zhuǎn)子超聲電機。通過對比實驗證明了該電機與傳統(tǒng)超聲電機相比具有明顯的優(yōu)越性:在電機轉(zhuǎn)速、瞬態(tài)特性等輸出性能保持不變的情況下,輸出轉(zhuǎn)矩提高了80%,功率密度提高了43.1%。對于運轉(zhuǎn)穩(wěn)定的共階梯軸雙定/轉(zhuǎn)子超聲電機,研究了組合超聲電機中的周向輸出合成機理,建立了基于雙路行波的周向輸出模型,驗證了超聲電機對不同幅值、頻率、相位的雙路行波具有良好的容差性,基于雙路行波的輸出轉(zhuǎn)矩合成效率始終高達90%。通過開展超聲電機的真空、高/低溫復(fù)合環(huán)境試驗與振動環(huán)境試驗,證明了本文自主研制的共階梯軸雙定/轉(zhuǎn)子超聲電機具備一定的極端環(huán)境適應(yīng)性與較好的抗震能力,具有較高的生產(chǎn)和實用價值。
[Abstract]:This issue is to study the key theory and technology of precision electronic equipment manufacturing project of National Natural Science Fund and Guangdong fund "(No.U0934004) one of the sub topics, the research object is the key technology in the industrialization process of the traveling wave rotary ultrasonic motor. The sound of rotating motor is a kind of traveling wave type ultrasonic motor is the most representative and in terms of the external shape and output mode and traditional electromagnetic motor is relatively close, and the operation mechanism of direct drive and it has many excellent characteristics, is one of the most widely used ultrasonic motor, which is a kind of industrial products the best prospects. As a high-tech product, interdisciplinary fusion of ultrasound the motor, its development history is relatively short, many problems encountered in the process of industrialization. With the development of high performance ultrasonic motor output, low manufacturing cost as the ultimate goal, deep The research on several key techniques of the traveling wave type rotary ultrasonic motor in the process of industrialization, the main research contents and results are summarized as follows: (1) analyze the operation mechanism of traveling wave ultrasonic motor, the ultrasonic motor stator that need to study in the process of industrialization, and improve the output torque of the driving interface and other aspects of the problem. (2) according to the electromechanical coupling between the stator of ultrasonic motor, finite element method was applied to analyze the stator incentive effect. Through the analysis of two typical stator of traveling wave ultrasonic motor, summarizes the influence on the vibration characteristics of the stator cogging angle. In order to solve the stator frequency consistency problem of two-phase batch manufacturing, analysis the influence of kinetic parameters of stator frequency, frequency adjustment method is proposed. The radial tooth chamfer (3) for the realization of the ultrasonic motor is proposed for advanced batch production. High temperature adhesive curing method of reflow soldering method in electronic manufacturing. According to the actual requirements to replace the traditional stator connection integration, the first design and build the reflow test system of the ultrasonic motor, the quick connection of the elastic body / piezoelectric ceramics. Studied the effects of multiple factors on reflow welding performance of stator the theoretical analysis of the coupling layer is directly related to the parameters of stator vibration characteristic, the vibration characteristics are further studied the mechanical properties of welding interface in six kinds of solder and the welding of the stator, points out that one of the main factors affecting the welding performance of stator is solder material. (4) according to the ultrasonic motor stator / micro amplitude the high frequency vibration characteristics, analyzes theoretically the influence factors on the output performance of ultrasonic motor driving interface, was established based on the equivalent surface stiffness model, summarizes the surface topography parameters The impact of the number of the output properties of the motor, summed up the interfacial adhesion region so as to reduce the driving performance of the main way to increase output, for the first time found that the impact of the rotor stiffness coefficient of Web driven interface pressure. Experimental study on the crosslinking of UHMWPE composites modified preparation of mechanical parameters from the equivalent surface. Stiffness model, shear friction material layer deformation, analyzed the rotor stiffness matching theory, discusses the driving interface with this new type of friction materials can improve the performance of ultrasonic motor output. (5) according to a series of problems of traveling wave ultrasonic motor combination at present, established two / the axial vibration model of the rotor of the ultrasonic motor, demonstrates two groups of stator / rotor between the possibility of axial vibration coupling and vibration energy transfer. According to the vibration isolation theory, put forward And the development of the total stepped shaft double stator / rotor ultrasonic motor. By comparing the experimental results show that the motor with the traditional ultrasonic motor has obvious advantages in comparison: when the rotation speed of the motor, the transient characteristics of the output performance remains unchanged, the output torque is increased by 80%, the power density is higher 43.1%. for the stable operation of the ladder double axis stator / rotor ultrasonic motor, the ultrasonic motor in combination of circumferential synthesis mechanism output, established a dual traveling wave based on the week to verify the output model of ultrasonic motor in different amplitude, frequency, phase of dual traveling wave with high tolerance, the output torque of the synthesis efficiency of dual traveling wave is always high 90%. carried out by vacuum based on ultrasonic motor, high / low temperature composite environmental test and vibration test showed that the self-developed total stepped shaft double stator / rotor ultrasonic motor with a certain extreme The environmental adaptability and good anti-seismic ability are of high production and practical value.

【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2014
【分類號】：TM35

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