本文關(guān)鍵詞：錨絞機(jī)輕量化技術(shù)基礎(chǔ)研究　出處：《南京理工大學(xué)》2015年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 錨絞機(jī) 動(dòng)力學(xué)仿真 有限元 結(jié)構(gòu)優(yōu)化

【摘要】：二十一世紀(jì)是海洋的時(shí)代,各國(guó)都在加大對(duì)海洋的開(kāi)發(fā)力度,而對(duì)海洋的開(kāi)發(fā)離不開(kāi)船舶工業(yè)的支持。因此,二十一世紀(jì)也將是船舶工業(yè)高速發(fā)展的時(shí)期。錨絞機(jī)作為船舶錨泊系統(tǒng)的主要設(shè)備,對(duì)船舶的安全運(yùn)行起著重要的作用。傳統(tǒng)設(shè)計(jì)的錨絞機(jī)體積過(guò)于龐大,部分結(jié)構(gòu)過(guò)于笨重,機(jī)械傳動(dòng)的效率不高,造成材料和能源的浪費(fèi)。因此,對(duì)錨絞機(jī)進(jìn)行輕量化技術(shù)研究,優(yōu)化其結(jié)構(gòu),提高傳動(dòng)效率,是錨絞機(jī)和其他船舶設(shè)備未來(lái)發(fā)展的趨勢(shì)。本文以錨絞機(jī)為研究對(duì)象,在滿(mǎn)足工作要求的基礎(chǔ)上,分別對(duì)錨絞機(jī)的錨鏈輪和底座進(jìn)行結(jié)構(gòu)優(yōu)化設(shè)計(jì),取得了較為合理的輕量化結(jié)果。本文主要的研究?jī)?nèi)容包括：分析錨絞機(jī)起錨過(guò)程的五個(gè)階段,并對(duì)各個(gè)階段的錨鏈拉力進(jìn)行計(jì)算,繪制了錨絞機(jī)起錨的載荷時(shí)間歷程曲線(xiàn)；建立了錨絞機(jī)的動(dòng)力學(xué)仿真模型,對(duì)起錨過(guò)程進(jìn)行仿真分析,通過(guò)仿真得到錨鏈輪和底座在起錨過(guò)程中的載荷；建立錨鏈輪和底座的有限元模型,對(duì)其靜態(tài)特性和動(dòng)態(tài)特性進(jìn)行有限元分析,得到其等效應(yīng)力和變形分布情況；根據(jù)錨鏈輪和底座各自的結(jié)構(gòu)和載荷特點(diǎn),對(duì)它們的結(jié)構(gòu)進(jìn)行優(yōu)化,對(duì)錨鏈輪進(jìn)行尺寸優(yōu)化,而對(duì)底座進(jìn)行拓?fù)鋬?yōu)化和尺寸優(yōu)化,在滿(mǎn)足錨鏈輪、底座的強(qiáng)度和剛度要求的前提下,盡可能地減少重量,比較優(yōu)化前后錨鏈輪和底座的分析結(jié)果,結(jié)合強(qiáng)度理論對(duì)優(yōu)化后的結(jié)構(gòu)進(jìn)行校核,確保其滿(mǎn)足要求。結(jié)構(gòu)優(yōu)化的結(jié)果表明：錨鏈輪和底座的減重目標(biāo)基本能夠達(dá)到,錨絞機(jī)的輕量化設(shè)計(jì)是比較合理的。
[Abstract]:21th century is the era of the ocean, countries are increasing the development of the ocean, and the development of the ocean can not be separated from the support of the ship industry. 21th century will also be a period of rapid development of the ship industry. As the main equipment of the ship mooring system, the anchor winch plays an important role in the safe operation of the ship. The traditional design of the anchor winch is too large. Part of the structure is too heavy, the efficiency of mechanical transmission is not high, resulting in waste of materials and energy. Therefore, the lightweight technology of anchor winch is studied to optimize its structure and improve transmission efficiency. This paper takes the anchor winch as the research object, on the basis of satisfying the working requirements, carries on the structure optimization design to the anchor chain wheel and the base of the anchor winch respectively. Reasonable lightweight results have been obtained. The main research contents of this paper are as follows: analyze the five stages of anchor lifting process of anchor winch and calculate the anchor chain tension in each stage. The load time history curve of anchor winch is drawn. The dynamic simulation model of anchor winch is established, and the load of anchor wheel and base in the process of anchor lifting is obtained by simulation. The finite element model of anchor chain wheel and base is established, and its static and dynamic characteristics are analyzed by finite element method, and the distribution of equivalent stress and deformation is obtained. According to the structure and load characteristics of the anchor chain wheel and the base, the structure of the anchor chain wheel is optimized, the dimension of the anchor chain wheel is optimized, and the topology optimization and the size optimization of the base are carried out to satisfy the anchor chain wheel. On the premise of the strength and stiffness of the base, the weight is reduced as much as possible, the analysis results of the anchor wheel and the base before and after optimization are compared, and the optimized structure is checked with the strength theory. The results of structural optimization show that the weight loss target of anchor chain wheel and base can be basically achieved and the lightweight design of anchor winch is reasonable.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：U664.42

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