發(fā)布時(shí)間：2018-01-03 01:27

  本文關(guān)鍵詞：機(jī)械產(chǎn)品設(shè)計(jì)缺陷的辨識(shí)模型與方法及其在機(jī)械傳動(dòng)系統(tǒng)中的應(yīng)用研究　出處：《電子科技大學(xué)》2014年博士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 設(shè)計(jì)缺陷 辨識(shí) 約束模型 回歸分析 驗(yàn)證樹(shù) 約束關(guān)系網(wǎng) 免疫辨識(shí) 仿真驗(yàn)證

【摘要】：機(jī)械產(chǎn)品的驗(yàn)證工作是機(jī)械產(chǎn)品設(shè)計(jì)過(guò)程中的重要環(huán)節(jié),由于驗(yàn)證系統(tǒng)的不完備性常導(dǎo)致其不能及時(shí)地發(fā)現(xiàn)機(jī)械產(chǎn)品設(shè)計(jì)中存在的缺陷,降低了機(jī)械產(chǎn)品的設(shè)計(jì)和開(kāi)發(fā)效率,增加了機(jī)械產(chǎn)品設(shè)計(jì)成本。基于零部件設(shè)計(jì)參數(shù)之間的約束關(guān)系所建立的設(shè)計(jì)缺陷辨識(shí)模型,可在機(jī)械產(chǎn)品的設(shè)計(jì)階段快速查找和準(zhǔn)確定位出機(jī)械產(chǎn)品中存在的設(shè)計(jì)缺陷,有效提高機(jī)械產(chǎn)品的設(shè)計(jì)質(zhì)量和開(kāi)發(fā)效率。論文以機(jī)械傳動(dòng)系統(tǒng)為研究對(duì)象,建立了其約束模型,分別對(duì)其強(qiáng)度設(shè)計(jì)缺陷、裝配設(shè)計(jì)缺陷和可加工性設(shè)計(jì)缺陷等設(shè)計(jì)缺陷的辨識(shí)模型與修正方法進(jìn)行了較為深入系統(tǒng)的研究。1.基于非圓直齒輪副主從動(dòng)輪之間的約束模型,提出了非圓直齒輪副的設(shè)計(jì)缺陷辨識(shí)模型與修正方法。分析了非圓直齒輪和高階橢圓錐齒輪節(jié)面產(chǎn)生不連續(xù)點(diǎn)和尖點(diǎn)的原因,給出了判斷其節(jié)面出現(xiàn)不連續(xù)點(diǎn)的準(zhǔn)則。針對(duì)高階阿基米德螺線錐齒輪和高階二次曲線錐齒輪設(shè)計(jì)過(guò)程中節(jié)面出現(xiàn)的尖點(diǎn)問(wèn)題,采用刀具節(jié)面替換非圓錐齒輪尖點(diǎn)處的節(jié)面,實(shí)現(xiàn)了對(duì)其節(jié)面尖點(diǎn)設(shè)計(jì)缺陷的修正。2.提出了基于回歸分析模型的機(jī)械產(chǎn)品設(shè)計(jì)缺陷辨識(shí)方法。以球籠式等速萬(wàn)向聯(lián)軸器為研究對(duì)象,將其內(nèi)外溝道的接觸應(yīng)力作為強(qiáng)度判斷的依據(jù),將歷史設(shè)計(jì)方案中影響零部件接觸應(yīng)力的設(shè)計(jì)參數(shù)作為因變量,建立接觸應(yīng)力與各相關(guān)影響因素的回歸方程,通過(guò)擬合后的回歸方程分析各因素對(duì)內(nèi)外溝道強(qiáng)度的影響程度,計(jì)算出各影響因素的最大擬合誤差值。將新設(shè)計(jì)方案中影響零部件接觸應(yīng)力的設(shè)計(jì)參數(shù)代入回歸方程,求得參數(shù)設(shè)計(jì)值與回歸方程的輸出值之間的差值,將此差值與回歸方程最大擬合誤差值進(jìn)行對(duì)比分析,辨識(shí)出了球籠式等速萬(wàn)向聯(lián)軸器設(shè)計(jì)中存在的強(qiáng)度設(shè)計(jì)缺陷。3.提出了基于驗(yàn)證樹(shù)模型的機(jī)械產(chǎn)品裝配設(shè)計(jì)缺陷的辨識(shí)方法。針對(duì)機(jī)械產(chǎn)品設(shè)計(jì)中的裝配約束驗(yàn)證問(wèn)題,采用構(gòu)造裝配約束驗(yàn)證樹(shù)的方法,將機(jī)械產(chǎn)品設(shè)計(jì)中存在裝配約束關(guān)系的信息存儲(chǔ)在樹(shù)的節(jié)點(diǎn)中,將修改后的設(shè)計(jì)參數(shù)存入修改器,使用監(jiān)視器來(lái)監(jiān)視修改器內(nèi)容的變化并對(duì)驗(yàn)證樹(shù)進(jìn)行實(shí)時(shí)更新,通過(guò)驗(yàn)證分析器調(diào)用監(jiān)視器中堆棧信息來(lái)決定驗(yàn)證工作的啟停,實(shí)現(xiàn)了裝配約束關(guān)系的動(dòng)態(tài)、關(guān)聯(lián)驗(yàn)證。開(kāi)發(fā)了一個(gè)動(dòng)態(tài)關(guān)聯(lián)式裝配驗(yàn)證原型系統(tǒng),采用該系統(tǒng)對(duì)驅(qū)動(dòng)腿筒件裝配體進(jìn)行了設(shè)計(jì)缺陷辨識(shí)。4.研究了基于約束關(guān)系網(wǎng)的機(jī)械產(chǎn)品設(shè)計(jì)缺陷辨識(shí)模型與修正方法。提出了機(jī)械產(chǎn)品裝配設(shè)計(jì)參數(shù)與其約束判定函數(shù)的關(guān)聯(lián)方法,研究了裝配約束關(guān)系網(wǎng)中節(jié)點(diǎn)的數(shù)據(jù)結(jié)構(gòu),給出了裝配約束關(guān)系網(wǎng)的構(gòu)建方法,描述了裝配約束關(guān)系網(wǎng)的禁忌表訪問(wèn)方式,在此基礎(chǔ)上提出了基于裝配約束關(guān)系網(wǎng)的裝配設(shè)計(jì)缺陷的辨識(shí)模型與方法。從裝配約束關(guān)系網(wǎng)中的設(shè)計(jì)缺陷節(jié)點(diǎn)出發(fā),以約束路徑的權(quán)值之和為目標(biāo)函數(shù),采用蟻群算法對(duì)裝配設(shè)計(jì)缺陷的修正路徑進(jìn)行了優(yōu)化,采用該方法對(duì)膜片離合器進(jìn)行了裝配設(shè)計(jì)缺陷的辨識(shí)與修正。5.提出了基于人工免疫原理的機(jī)械產(chǎn)品設(shè)計(jì)缺陷辨識(shí)方法。將機(jī)械產(chǎn)品中零部件的幾何約束關(guān)系規(guī)約為設(shè)計(jì)缺陷判別函數(shù),在對(duì)零部件的幾何約束編碼的基礎(chǔ)上建立了機(jī)械產(chǎn)品的裝配約束關(guān)系矩陣,采用有向圖存儲(chǔ)裝配約束關(guān)系矩陣信息,有向圖中的節(jié)點(diǎn)標(biāo)識(shí)零件編號(hào),節(jié)點(diǎn)的數(shù)據(jù)結(jié)構(gòu)存儲(chǔ)零件的設(shè)計(jì)參數(shù),弧的權(quán)值標(biāo)識(shí)幾何約束的類(lèi)型。將有向圖中弧的權(quán)值作為抗原,設(shè)計(jì)缺陷作為抗體,依據(jù)抗原基因與抗體基因的親和度來(lái)決定抗體的變異規(guī)則,通過(guò)對(duì)抗體的剪切、拼接與替換等變異操作來(lái)識(shí)別抗原,基于對(duì)有向圖中弧的權(quán)值的解碼分析實(shí)現(xiàn)了機(jī)械產(chǎn)品設(shè)計(jì)缺陷的動(dòng)態(tài)辨識(shí)。6.提出了高階非圓齒輪副的根切、齒頂過(guò)切和節(jié)曲線干涉等設(shè)計(jì)缺陷的仿真驗(yàn)證辨識(shí)方法。建立了非圓錐齒輪齒廓產(chǎn)形刀具的精確數(shù)學(xué)模型,基于非圓齒輪與其齒廓產(chǎn)形刀具之間以及主從動(dòng)輪節(jié)曲線之間的嚙合關(guān)系,提出了高階非圓錐齒輪的齒廓產(chǎn)形算法和主從動(dòng)輪之間嚙合運(yùn)動(dòng)的仿真算法。在此基礎(chǔ)上建立了高階非圓錐齒輪副的仿真驗(yàn)證模型,提出了高階橢圓齒輪副根切和齒頂過(guò)切等設(shè)計(jì)缺陷的修正方法。
[Abstract]:Mechanical product verification is an important step in the design process of mechanical products, due to the incompleteness of verification system often leads to its not timely find defects in mechanical product design, reduces the efficiency of design and development of mechanical products, increase the cost of design of mechanical products. The design defects identification model of constraint relation of parts design based on the parameters, can design defects in mechanical products in the design stage to quickly find the mechanical products and accurate positioning, improve the design quality and efficiency of development of mechanical products. The paper adopts mechanical transmission system as the research object, establishes the constraint model, respectively, on the strength of design flaws, identification and correction method model of assembly design defects and workability design defects and other defects in the design of.1. systematic non-circular spur gear based on The constraint model between driving and driven wheels, the non-circular vertical design flaw identification model of gear pair and correction method. Analysis of the causes of non circular gear and high order elliptical bevel gear section has discontinuous points and a sharp point, given the section surface discontinuities appear sharp point needle criteria. The high order Archimedes spiral bevel gear bevel gear and the Takahashi Fuji curve in the design process of section, section by section surface replacement of noncircular bevel gear cutter tip point, the modified.2. on the plane point defects in the design proposed design flaw identification method of mechanical products based on regression analysis model. With the ball type constant speed universal coupling as the research object, the inner and outer channel contact stress strength as the basis for judgment of history in the design of design parameters influence the contact stress of the parts as the dependent variable, establish contact The regression equation of force and the related influencing factors, through regression analysis of the influence of various factors on the inner and outer channel strength, calculate the maximum fitting error factor values of each influence. The new design scheme in the influence of design parameters of parts into the contact stress of the regression equation, the parameter difference between the output and the design value the regression equation of value, the difference with the regression equation of the maximum fitting error value were compared and analyzed to identify the strength design defects in.3. rzeppa constant velocity joint in the design of the proposed identification method of mechanical product assembly design defect verification tree model based on assembly constraint. According to the mechanical product design verification problem, method the structure of assembly constraint verification tree, assembly relationship information will exist in design of mechanical products stored in the tree node, the modified design The parameters to modify, use the monitor to monitor the modifier content changes and real-time updating of the authentication tree, by verifying the call stack information analyzer monitor to determine the verification work of start and stop, to achieve a dynamic, assembly constraint relationship verification. The development of a dynamic association assembly verification prototype system for driving legs cylinder assembly is designed to identify defects of.4. mechanical product design defect identification model and correction method based on the constraint relation net system is proposed. The design parameters of mechanical assembly and constraint decision function correlation method, the data structure of the assembly constraint relationship of nodes in the net, gave the construction method of assembly constraints the relationship between network, describes the assembly relationship network tabu list access method is proposed on the basis of assembly design and assembly constraint relations based on Network The identification model and method of defect. Starting from the design defects of node assembly relationship network, to the right path constraints and objective function, using ant colony algorithm modified path assembly design of defects were optimized by the method of the identification of the diaphragm clutch assembly design defects with the modified.5. is proposed defect identification method of Mechanical products based on artificial immune principle. The geometric constraint relationship specification parts in mechanical products design defects based on geometric constraint discriminant function, encoding of spare parts is established on the assembly relation matrix of mechanical products, the matrix of directed graph and storage assembly relationship information, a node ID number to parts of the map, the design parameters of structure parts data storage node, identifies the type weights arc. The geometric constraint will be as to the graph arc weights Design defects as antigen, antibody, antigen and antibody affinity for gene gene to determine the variation rules of antibodies, the antibody of shear, splicing and substitution mutation operation to identify antigens based on directed graph decoding analysis arc weights to realize the dynamic identification of.6. defects in the design of mechanical product is proposed undercutting high-order circular gear, tooth top simulation identification method for design defects cutting and pitch curve interference. A mathematical model of noncircular bevel gear tooth profile of cutter, non-circular gear tooth profile and shape tool meshing relationship between driving and driven wheels and the pitch curve based on the proposed the simulation algorithm of meshing motion between high-order cone gear tooth profile shape algorithm and the driven pulley. Based on the simulation model of high order cone gear pair, put forward the high order elliptic gear Vice undercutting and tooth top modified method cutting design defects.

【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TH122
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本文編號(hào)：1371790