本文選題：扭葉轉(zhuǎn)子 + 設(shè)計(jì)影響因素　； 參考：《哈爾濱工業(yè)大學(xué)》2017年碩士論文

【摘要】：航天器及空間站需要凈水系統(tǒng)進(jìn)行污水凈化,而壓縮機(jī)是凈水系統(tǒng)的重要一環(huán),羅茨鼓風(fēng)機(jī)可以作為凈水系統(tǒng)的壓縮機(jī)。由于空間站對(duì)產(chǎn)品有嚴(yán)格的重量和尺寸的限制,需要使用小型羅茨鼓風(fēng)機(jī),傳統(tǒng)大型羅茨鼓風(fēng)機(jī)的設(shè)計(jì)方法無(wú)法滿足所需鼓風(fēng)機(jī)的設(shè)計(jì)要求,因此需要對(duì)小型羅茨鼓風(fēng)機(jī)的設(shè)計(jì)和制造方法進(jìn)行研究,尤其是羅茨鼓風(fēng)機(jī)中線型復(fù)雜的轉(zhuǎn)子的參數(shù)化建模、轉(zhuǎn)子設(shè)計(jì)影響因素、轉(zhuǎn)子對(duì)鼓風(fēng)機(jī)性能影響以及轉(zhuǎn)子的加工等迫切需要解決的問(wèn)題。本文基于嚙合原理,實(shí)現(xiàn)了兩種型線的扭葉轉(zhuǎn)子設(shè)計(jì),建立了扭葉轉(zhuǎn)子空間螺旋曲面體系,進(jìn)行了虛擬裝配與動(dòng)態(tài)仿真,運(yùn)動(dòng)仿真與干涉檢驗(yàn),以確保設(shè)計(jì)的合理性,進(jìn)而給出羅茨轉(zhuǎn)子的設(shè)計(jì)流程。利用CFX浸入實(shí)體法實(shí)現(xiàn)了羅茨鼓風(fēng)機(jī)內(nèi)部流場(chǎng)的瞬態(tài)模擬,探究了不同型線與間隙對(duì)羅茨鼓風(fēng)機(jī)內(nèi)部流場(chǎng)的影響,得到了不同間隙以及不同型線(圓弧型和改進(jìn)漸開(kāi)線型)對(duì)羅茨鼓風(fēng)機(jī)流量脈動(dòng)、氣密性等性能的影響規(guī)律,為轉(zhuǎn)子的設(shè)計(jì)提供依據(jù)。通過(guò)靜力學(xué)分析得到離心力的單獨(dú)作用對(duì)于轉(zhuǎn)子應(yīng)力和變形的影響,利用Workbench進(jìn)行扭葉轉(zhuǎn)子的流固耦合分析,將FLUENT流場(chǎng)分析結(jié)果加載至Static Structure進(jìn)行分析,探究氣動(dòng)壓力與熱耦合作用對(duì)轉(zhuǎn)子應(yīng)力和變形的影響,得到轉(zhuǎn)子的變形規(guī)律,為羅茨鼓風(fēng)機(jī)轉(zhuǎn)子間隙的設(shè)計(jì)提供參考。使用UG軟件,對(duì)改進(jìn)漸開(kāi)線型線扭葉轉(zhuǎn)子進(jìn)行加工路徑規(guī)劃分析及加工仿真與干涉檢驗(yàn),得到了扭葉轉(zhuǎn)子的五軸聯(lián)動(dòng)加工路徑,對(duì)生成的數(shù)控代碼進(jìn)行專用后置處理,并通過(guò)扭葉轉(zhuǎn)子的加工實(shí)驗(yàn),驗(yàn)證了刀具路徑和加工代碼的正確性。
[Abstract]:Spacecraft and space station need water purification system for sewage purification, and compressor is an important part of water purification system, Roots blower can be used as the compressor of water purification system. Since the space station has strict weight and size restrictions on the product, it is necessary to use a small Roots blower, and the traditional design method of the large Roots blower cannot meet the design requirements of the required blower. Therefore, it is necessary to study the design and manufacturing methods of the small Roots blower, especially the parametric modeling of the rotor with complex lines in the Roots blower, and the factors affecting the rotor design. The effect of rotor on the performance of blower and the processing of rotor are urgent problems to be solved. Based on the meshing principle, this paper realizes the design of two kinds of torsion blade rotor, establishes the space helical curved surface system of the torsional blade rotor, carries on the virtual assembly and dynamic simulation, the motion simulation and the interference test, in order to ensure the rationality of the design. Furthermore, the design flow of Roots rotor is given. The transient simulation of the internal flow field of the Roots blower is realized by using the CFX immersion method, and the influence of different profile and clearance on the internal flow field of the Roots blower is investigated. The effects of different clearance and different profile (circular arc and improved involute) on the flow pulsation and airtightness of the Roots blower are obtained, which provides the basis for the design of the rotor. The effect of centrifugal force on the stress and deformation of rotor is obtained by statics analysis. The fluid-solid coupling analysis of torsional blade rotor is carried out by using Workbench, and the results of FLUENT flow field analysis are loaded into Static Structure for analysis. The influence of the coupling of aerodynamic pressure and heat on the stress and deformation of the rotor is studied, and the law of the rotor deformation is obtained, which provides a reference for the design of rotor clearance of the Roots blower. By using UG software, the machining path planning analysis, machining simulation and interference testing of the improved involute rotor are carried out, and the five-axis linkage machining path of the rotor is obtained, and the generated NC code is processed specially. The correctness of tool path and machining code is verified by machining experiments of twisted blade rotor.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TH444

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 蔡玉強(qiáng);李德才;朱東升;;新型三葉羅茨壓縮機(jī)設(shè)計(jì)研究[J];載人航天;2016年03期

2 王灝;張景坡;;基于ANSYS workbench風(fēng)機(jī)轉(zhuǎn)子的模態(tài)分析[J];科技創(chuàng)新與應(yīng)用;2016年13期

3 張琳;蔣楓;陸凱杰;徐晨;崔騰飛;趙楓;紀(jì)加超;;MVR蒸汽羅茨風(fēng)機(jī)性能對(duì)比分析[J];化工進(jìn)展;2015年06期

4 劉厚根;董誠(chéng)誠(chéng);李成佳;;基于流固耦合的羅茨機(jī)械增壓器轉(zhuǎn)子強(qiáng)度研究[J];合肥工業(yè)大學(xué)學(xué)報(bào)(自然科學(xué)版);2014年05期

5 周開(kāi)俊;童一飛;李業(yè)農(nóng);肖軼;;三葉漸開(kāi)線羅茨風(fēng)機(jī)轉(zhuǎn)子數(shù)值分析與優(yōu)化[J];圖學(xué)學(xué)報(bào);2014年02期

6 張小萍;吳彬;徐萌;肖芝;王君澤;;基于CFX的高壓羅茨鼓風(fēng)機(jī)內(nèi)流場(chǎng)數(shù)值模擬[J];制造業(yè)自動(dòng)化;2013年23期

7 黃麗云;;羅茨泵轉(zhuǎn)子數(shù)控線切割加工技術(shù)研究[J];裝備制造技術(shù);2013年10期

8 尹君馳;黃艷;;羅茨風(fēng)機(jī)轉(zhuǎn)子系統(tǒng)動(dòng)力學(xué)可視化分析[J];煤礦機(jī)械;2013年10期

9 劉厚根;李成佳;敖方源;劉永勝;;羅茨機(jī)械增壓器漸開(kāi)線型轉(zhuǎn)子型線的改進(jìn)研究[J];流體機(jī)械;2013年08期

10 巫修海;張寶夫;程子瑜;;螺旋羅茨轉(zhuǎn)子四軸加工刀路規(guī)劃[J];制造技術(shù)與機(jī)床;2013年08期

相關(guān)碩士學(xué)位論文 前1條

1 龍海洋;羅茨鼓風(fēng)機(jī)扭葉轉(zhuǎn)子數(shù)控刨削加工的研究[D];華中科技大學(xué);2005年

，

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