本文選題：電主軸 + 靜動(dòng)態(tài)特性�。� 參考：《武漢輕工大學(xué)》2015年碩士論文

【摘要】：電主軸作為高檔機(jī)床的核心功能部件,其結(jié)構(gòu)與性能的好壞直接決定了整機(jī)工作性能。故而,研究和分析電主軸單元結(jié)構(gòu)、動(dòng)靜態(tài)特性和結(jié)構(gòu)優(yōu)化等關(guān)鍵問題,對(duì)于提高電主軸的性能具有重要意義。論文介紹了電主軸的工作原理、基本結(jié)構(gòu)、關(guān)鍵技術(shù)問題;根據(jù)設(shè)計(jì)要求,確定了電主軸的關(guān)鍵結(jié)構(gòu)參數(shù),借助CAXA軟件完成了電主軸詳細(xì)結(jié)構(gòu)設(shè)計(jì),運(yùn)用Solid Edge建模軟件中完成了零件的幾何建模和裝配體建模;運(yùn)用ANSYS有限元軟件,對(duì)主軸系統(tǒng)進(jìn)行了靜、動(dòng)態(tài)特性分析研究和結(jié)構(gòu)優(yōu)化。(1)依據(jù)電主軸的基本結(jié)構(gòu)和設(shè)計(jì)要求,從結(jié)構(gòu)形式、電機(jī)選型、主軸結(jié)構(gòu)參數(shù)、軸承選型、潤(rùn)滑和冷卻方式等關(guān)鍵問題進(jìn)行方案設(shè)計(jì)和參數(shù)確定,獲得了電主軸整體結(jié)構(gòu)。(2)介紹Solid Edge中幾何建模的方法,完成了電主軸全部零件的三維建模和整體裝配建模,直觀展示了電主軸的結(jié)構(gòu)。(3)運(yùn)用有限元方法,對(duì)主軸系統(tǒng)模型進(jìn)行簡(jiǎn)化,在ANSYS軟件中完成了主軸—軸承系統(tǒng)的靜動(dòng)態(tài)特性分析,分析了主軸的靜剛度、固有頻率和振型,驗(yàn)證了設(shè)計(jì)的可行性。(4)在主軸—軸承系統(tǒng)靜動(dòng)態(tài)特性分析的基礎(chǔ)上,以減少主軸體積,提高主軸靜動(dòng)態(tài)性能為目標(biāo),運(yùn)用ANSYS多目標(biāo)優(yōu)化功能,對(duì)主軸軸承間距、軸承與電機(jī)轉(zhuǎn)子間距、懸伸量進(jìn)行了優(yōu)化,獲得了優(yōu)化結(jié)果,并進(jìn)一步比較了主軸優(yōu)化前后的靜動(dòng)態(tài)性能。
[Abstract]:As the core functional part of high-grade machine tool, the structure and performance of motorized spindle directly determine the working performance of the whole machine. Therefore, it is of great significance to study and analyze the structure, dynamic and static characteristics and structural optimization of the motorized spindle. This paper introduces the working principle, basic structure and key technical problems of the motorized spindle, determines the key structural parameters of the motorized spindle according to the design requirements, and completes the detailed structural design of the motorized spindle with the aid of CAXA software. The geometric modeling and assembly modeling of parts are completed by using solid Edge modeling software, and the static and dynamic characteristic analysis and structural optimization of spindle system are carried out by using ANSYS finite element software. (1) according to the basic structure and design requirements of motorized spindle, From the structural form, motor type selection, spindle structure parameter, bearing selection, lubrication and cooling mode and so on, the scheme design and parameter determination are carried out. (2) the geometric modeling method in solid Edge is introduced. The 3D modeling and integral assembly modeling of all the parts of the motorized spindle are completed, and the structure of the motorized spindle is displayed intuitively. (3) the model of the spindle system is simplified by using the finite element method. The static and dynamic characteristic analysis of the spindle bearing system is completed in ANSYS software. The static stiffness, natural frequency and vibration mode of the spindle are analyzed, and the feasibility of the design is verified. (4) on the basis of the static and dynamic characteristic analysis of the spindle bearing system, the static and dynamic characteristics of the spindle bearing system are analyzed. In order to reduce the volume of the spindle and improve the static and dynamic performance of the spindle, by using the multi-objective optimization function of ANSYS, the distance between the spindle bearing and the rotor of the motor and the overhang are optimized, and the optimized results are obtained. The static and dynamic performances of the spindle before and after optimization are further compared.
【學(xué)位授予單位】：武漢輕工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TG502.3

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