本文選題：轎架結(jié)構(gòu)　切入點(diǎn)：靜力學(xué)分析　出處：《蘇州大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

【摘要】：伴隨著國(guó)內(nèi)電梯行業(yè)競(jìng)爭(zhēng)的不斷加劇,整梯廠家通過(guò)降低成本來(lái)迎合客戶的需求,很多公司常用的降本方法是結(jié)構(gòu)設(shè)計(jì)優(yōu)化及尋找更具性價(jià)比的替代產(chǎn)品。替代產(chǎn)品(主要為標(biāo)準(zhǔn)采購(gòu)件)只需找到合適的且具有高性價(jià)比的產(chǎn)品替代即可,但對(duì)于結(jié)構(gòu)設(shè)計(jì)優(yōu)化,原有的經(jīng)典公式推導(dǎo)法已經(jīng)遠(yuǎn)遠(yuǎn)不能滿足現(xiàn)有市場(chǎng)需求了,特別是對(duì)于一些結(jié)構(gòu)組件及帶有加強(qiáng)筋的物料(例如轎架),原來(lái)的計(jì)算方法漸漸顯示出它的不足,這時(shí)候就急需尋找一種新的替代解決方案。本課題來(lái)源于某電梯公司的實(shí)際項(xiàng)目,根據(jù)市場(chǎng)及前線的實(shí)際需求,開(kāi)發(fā)出安全、經(jīng)濟(jì)效益良好的電梯品種成為研發(fā)部當(dāng)務(wù)之急,而原有開(kāi)發(fā)思路及方法已明顯嚴(yán)重滯后于實(shí)際的市場(chǎng)需要,隨著三維軟件、有限元分析軟件的逐步完善成熟,采用新思路、新方法、新流程來(lái)設(shè)計(jì)開(kāi)發(fā)新梯成為了可能,。擯除原有設(shè)計(jì)的弊端,采用ANSYS有限元仿真對(duì)電梯結(jié)構(gòu)進(jìn)行分析與研究,并對(duì)電梯結(jié)構(gòu)優(yōu)化設(shè)計(jì)。論文的主要研究?jī)?nèi)容如下:(1)首先對(duì)國(guó)內(nèi)外電梯公司對(duì)于電梯結(jié)構(gòu)設(shè)計(jì)的思路及其設(shè)計(jì)原理進(jìn)行了探討,并確立了本課題要研究的內(nèi)容與方向;(2)針對(duì)電梯零部件繁多,結(jié)構(gòu)復(fù)雜的特點(diǎn),采用三維軟件proe直接進(jìn)行三維建模,保證留孔尺寸、定位尺寸的準(zhǔn)確性,并可提前發(fā)現(xiàn)零部件的裝配干涉問(wèn)題,在早期就進(jìn)行相應(yīng)的修改及優(yōu)化;(3)采用ANSYS workbench對(duì)轎架結(jié)構(gòu)進(jìn)行靜力學(xué)分析,對(duì)應(yīng)力集中及安全系數(shù)偏大的受力部位進(jìn)行優(yōu)化及改善;(4)采用ANSYS workbench對(duì)轎架結(jié)構(gòu)進(jìn)行動(dòng)力學(xué)分析,校核轎架剛度及強(qiáng)度,進(jìn)一步優(yōu)化轎廂結(jié)構(gòu)設(shè)計(jì);本文首先針對(duì)實(shí)際項(xiàng)目按照傳統(tǒng)計(jì)算方法對(duì)該電梯進(jìn)行計(jì)算,驗(yàn)證整梯的安全性。然后對(duì)該電梯的轎架結(jié)構(gòu)做了靜力學(xué)分析。將其分為5種工況進(jìn)行校核,歸納結(jié)果,對(duì)設(shè)計(jì)冗余過(guò)大的上梁重新做了優(yōu)化設(shè)計(jì),降低材料成本,并再次校核,確認(rèn)可行性。最后對(duì)該電梯的轎架整體結(jié)構(gòu)做了動(dòng)力學(xué)分析,考慮了兩種工況,在設(shè)定了時(shí)間、步長(zhǎng)、加減速度后,求出綜合應(yīng)力、X向、Y向的變形量,并再次確認(rèn)其可行性。最終在企業(yè)實(shí)際生產(chǎn)中得到良好應(yīng)用,并取得良好的經(jīng)濟(jì)效益。
[Abstract]:With the increasing competition in the domestic elevator industry, the whole elevator manufacturer caters to the customer's demand by reducing the cost. The common cost reduction methods used by many companies are structural design optimization and the search for more cost-effective alternatives. Alternative products (mainly standard purchases) need only be replaced by suitable and cost-effective products. However, for structural design optimization, the original classical formula derivation method is far from meeting the existing market demand. In particular, for some structural components and materials with stiffeners (for example, sedan chair frames), the original method of calculation gradually revealed its shortcomings. There is an urgent need to find a new alternative solution. This topic comes from the actual project of a certain elevator company. According to the actual needs of the market and the front line, the development of safe and economically sound elevator varieties has become the top priority of the R & D department. However, the original development ideas and methods have obviously lagged behind the actual market needs. With the gradual improvement of 3D software and finite element analysis software, new ideas and methods are adopted. The new process to design and develop the new ladder has become possible to eliminate the drawbacks of the original design. The ANSYS finite element simulation is used to analyze and study the elevator structure. The main research contents of this paper are as follows: firstly, the ideas and principles of elevator structure design in domestic and foreign elevator companies are discussed. The content and direction of this research are established. Aiming at the characteristics of the elevator with many parts and complicated structure, the 3D modeling is carried out directly by using proe software, which ensures the accuracy of the dimension of the hole and the location. The assembly interference problem of components can be discovered in advance, and the corresponding modification and optimization are carried out in the early stage. The static analysis of the sedan chair structure is carried out by ANSYS workbench. The stress concentration and the stress position of the safety factor are optimized and improved. (4) the dynamic analysis of the sedan chair structure is carried out by ANSYS workbench, the stiffness and strength of the car frame are checked, and the design of the car structure is further optimized. In this paper, the elevator is first calculated according to the traditional calculation method to verify the safety of the whole elevator. Then the statics analysis of the structure of the elevator is made, which is divided into five working conditions to be checked, and the results are summarized. The optimization design of the beam with too much redundancy is redesigned, the material cost is reduced, the material cost is reduced, and the feasibility is rechecked and confirmed. Finally, the dynamic analysis of the overall structure of the car frame of the elevator is made, considering two working conditions, and the time and step are set. After adding and decreasing the velocity, the deformation amount of the comprehensive stress X direction is calculated, and its feasibility is confirmed again. Finally, it is applied well in the actual production of the enterprise, and good economic benefit is obtained.
【學(xué)位授予單位】：蘇州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TU857

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