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

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

【摘要】：二十一世紀是海洋的時代,各國都在加大對海洋的開發(fā)力度,而對海洋的開發(fā)離不開船舶工業(yè)的支持。因此,二十一世紀也將是船舶工業(yè)高速發(fā)展的時期。錨絞機作為船舶錨泊系統(tǒng)的主要設(shè)備,對船舶的安全運行起著重要的作用。傳統(tǒng)設(shè)計的錨絞機體積過于龐大,部分結(jié)構(gòu)過于笨重,機械傳動的效率不高,造成材料和能源的浪費。因此,對錨絞機進行輕量化技術(shù)研究,優(yōu)化其結(jié)構(gòu),提高傳動效率,是錨絞機和其他船舶設(shè)備未來發(fā)展的趨勢。本文以錨絞機為研究對象,在滿足工作要求的基礎(chǔ)上,分別對錨絞機的錨鏈輪和底座進行結(jié)構(gòu)優(yōu)化設(shè)計,取得了較為合理的輕量化結(jié)果。本文主要的研究內(nèi)容包括：分析錨絞機起錨過程的五個階段,并對各個階段的錨鏈拉力進行計算,繪制了錨絞機起錨的載荷時間歷程曲線；建立了錨絞機的動力學(xué)仿真模型,對起錨過程進行仿真分析,通過仿真得到錨鏈輪和底座在起錨過程中的載荷；建立錨鏈輪和底座的有限元模型,對其靜態(tài)特性和動態(tài)特性進行有限元分析,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,對它們的結(jié)構(gòu)進行優(yōu)化,對錨鏈輪進行尺寸優(yōu)化,而對底座進行拓撲優(yōu)化和尺寸優(yōu)化,在滿足錨鏈輪、底座的強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)合強度理論對優(yōu)化后的結(jié)構(gòu)進行校核,確保其滿足要求。結(jié)構(gòu)優(yōu)化的結(jié)果表明：錨鏈輪和底座的減重目標基本能夠達到,錨絞機的輕量化設(shè)計是比較合理的。
[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)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U664.42

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本文編號：1361593