本文選題：編織型鋼絲繩 + 彎曲狀態(tài)　； 參考：《濟(jì)南大學(xué)》2017年碩士論文

【摘要】：編織型鋼絲繩因其不旋轉(zhuǎn)特性作為牽引繩被廣泛應(yīng)用于張力架線施工中,成為施工必備且重要的工器具之一,其力學(xué)性能分析對安全施工至關(guān)重要。分析張力架線過程表明,鋼絲繩在經(jīng)過牽引卷筒時,其受力狀況最為復(fù)雜且是最易發(fā)生危險(xiǎn)的位置之一,由于卷筒的牽引卷繞作用,鋼絲繩受到拉、彎、扭、壓等力的復(fù)合作用,因此,有必要基于牽引工況對編織鋼絲繩卷繞彎曲狀態(tài)下的力學(xué)特性進(jìn)行研究。本文以四方八股編織鋼絲繩為例,對其進(jìn)行彎曲狀態(tài)下的數(shù)學(xué)模型構(gòu)建,以鋼絲繩經(jīng)過牽引卷筒時的彎曲受力狀態(tài)為工況,進(jìn)行其彎曲狀態(tài)下的應(yīng)力及變形分布探究。具體研究內(nèi)容如下:針對四方八股編織鋼絲繩,分析其在平直狀態(tài)下的空間結(jié)構(gòu)及繩股、鋼絲之間的相位關(guān)系,探討其處于彎曲狀態(tài)時繩股及股內(nèi)鋼絲在整繩中的位置變化,確定該狀態(tài)下繩股及鋼絲之間相關(guān)參數(shù)之間的關(guān)系,通過坐標(biāo)變換及微分學(xué)理論建立其彎曲狀態(tài)下繩股及股內(nèi)鋼絲的螺旋線方程,即卷繞彎曲狀態(tài)數(shù)學(xué)模型。在此基礎(chǔ)上分析其幾何特征,借助MATLAB軟件計(jì)算并獲得編織鋼絲繩彎曲狀態(tài)下繩股及側(cè)線鋼絲的曲率變化特性�；谒姆桨斯删幙椾摻z繩彎曲狀態(tài)下的數(shù)學(xué)模型,以YS9-8×19編織鋼絲繩為例,在三維軟件SolidWorks中建立其卷繞彎曲狀態(tài)下的幾何模型,同時建立牽引卷筒的簡化幾何模型,進(jìn)而組合完成“繩-輪”牽引卷繞系統(tǒng)整體模型的建立。根據(jù)張力架線實(shí)際工況,確定數(shù)值模擬的載荷及約束,完成“繩-輪”牽引卷繞系統(tǒng)的有限元模型構(gòu)建并進(jìn)行數(shù)值模擬。分析數(shù)值模擬結(jié)果,獲得拉伸力作用下編織鋼絲繩繞過牽引卷筒時鋼絲繩繩股應(yīng)力及變形的分布規(guī)律;通過不同摩擦系數(shù)設(shè)置,仿真分析摩擦系數(shù)對其彎曲狀態(tài)應(yīng)力及變形的影響;同時對不同節(jié)距下的模型進(jìn)行模擬,獲得不同節(jié)距、同種邊界條件下鋼絲繩卷繞彎曲狀態(tài)應(yīng)力分布,并分析確定該工況下最佳鋼絲繩節(jié)距。以YS9-8×19編織鋼絲繩為例,對其進(jìn)行卷繞彎曲狀態(tài)拉伸試驗(yàn)。試驗(yàn)從定性和定量分析的角度確定兩種方案,定量分析通過將同種載荷下的彎曲拉伸試驗(yàn)伸長量與模擬伸長量進(jìn)行對比;定性分析則是將編織鋼絲繩卷繞彎曲狀態(tài)拉伸試驗(yàn)所出現(xiàn)的斷裂位置與其卷繞彎曲狀態(tài)數(shù)值模擬所得到的應(yīng)力最大點(diǎn)位置相比較。通過上述試驗(yàn),驗(yàn)證編織鋼絲繩卷繞彎曲狀態(tài)數(shù)學(xué)模型及幾何模型的合理性,以及“繩-輪”牽引卷繞系統(tǒng)數(shù)值模擬的可行性。
[Abstract]:The braided wire rope is widely used in the construction of tension wire because of its non-rotation characteristics, and becomes one of the necessary and important workpieces in construction. The analysis of its mechanical properties is very important to the safe construction. The analysis of the tension stringing process shows that when the wire rope passes through the traction reel, its stress condition is the most complex and one of the most dangerous positions. Because of the traction winding action of the reel, the wire rope is pulled, bent and twisted. Therefore, it is necessary to study the mechanical properties of braided wire rope under winding and bending based on the traction condition. In this paper, the mathematical model of square eight strands braided wire rope under bending condition is constructed, and the distribution of stress and deformation in bending state of wire rope is studied by taking the bending force state of wire rope as the working condition when it passes through the traction drum. The specific research contents are as follows: in view of the square eight strands of braided wire rope, the spatial structure and the phase relationship between the rope strands and the steel wire in the straight state are analyzed, and the position changes of the rope strands and the steel wire inside the strands in the whole rope when they are in the bending state are discussed. The relationship between the relative parameters of rope strands and steel wire in this state is determined. The helix equation of rope strands and wire in the bending state is established by coordinate transformation and differential calculus theory, that is, the mathematical model of winding and bending state. On this basis, the geometric characteristics of the wire are analyzed, and the curvature characteristics of the wire strands and side wire under the bending state of the braided wire rope are calculated and obtained by using MATLAB software. Based on the mathematical model of square eight strands braided wire rope under bending state, taking YS9-8 脳 19 braided wire rope as an example, the geometric model under winding and bending state is established in the 3D software SolidWorks, and the simplified geometric model of traction reel is established at the same time. Then the whole model of the rope-wheel traction winding system is established. According to the actual working condition of the tension wire, the load and constraint of the numerical simulation are determined, and the finite element model of the "rope wheel" traction winding system is constructed and numerically simulated. By analyzing the results of numerical simulation, the distribution of stress and deformation of wire rope strands in weaving wire rope around the traction drum under tensile force is obtained, and the different friction coefficient is set up. The influence of friction coefficient on the bending state stress and deformation is analyzed, and the stress distribution of wire rope under the same boundary condition is obtained by simulating the models under different pitch. The optimum pitch of wire rope under this working condition is analyzed and determined. Taking YS9-8 脳 19 braided wire rope as an example, the winding and bending state tensile test of the wire rope was carried out. The two schemes were determined from the qualitative and quantitative analysis. Quantitative analysis was carried out by comparing the bending tensile test elongation under the same load with the simulated elongation. The qualitative analysis is to compare the fracture position of the braided wire rope with the position of the maximum stress obtained by numerical simulation of the winding bending state of the braided wire rope. Through the above experiments, the rationality of the mathematical model and geometric model of the winding state of braided wire rope is verified, and the feasibility of the numerical simulation of the "rope wheel" traction winding system is also verified.
【學(xué)位授予單位】：濟(jì)南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TG356.45

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 趙霞;王慧;付超;崔衛(wèi)華;趙萍;田相省;;編織防扭鋼絲繩繩股展開線研究及力學(xué)建模[J];機(jī)械強(qiáng)度;2017年01期

2 付超;王慧;崔衛(wèi)華;徐紅芹;趙霞;;編織防扭鋼絲繩應(yīng)力分布數(shù)值模擬研究[J];機(jī)械強(qiáng)度;2016年01期

3 郭衛(wèi);路正雄;張武;;基于Pro/E的圓弧彎曲鋼絲繩建模理論及幾何實(shí)現(xiàn)[J];中國機(jī)械工程;2015年17期

4 吳娟;寇子明;劉玉輝;吳國雄;;彎曲鋼絲繩股內(nèi)鋼絲應(yīng)力應(yīng)變數(shù)值模擬[J];煤炭學(xué)報(bào);2015年06期

5 吳娟;寇子明;劉玉輝;吳國雄;;獨(dú)立鋼絲繩芯鋼絲繩應(yīng)力及變形分布[J];煤炭學(xué)報(bào);2014年11期

6 劉玉輝;寇子明;吳娟;吳國雄;;單捻鋼絲繩股內(nèi)鋼絲應(yīng)力分布研究[J];礦山機(jī)械;2014年02期

7 谷海濤;高崇仁;梁晨;王磊;;鋼絲繩的受力特性及彎曲疲勞壽命分析[J];機(jī)械工程與自動化;2013年05期

8 王曉宇;王雷;孟祥寶;;圓股鋼絲繩幾何建模與力學(xué)分析的探討[J];礦山機(jī)械;2013年09期

9 史歡學(xué);;張力架線用牽引繩斷裂原因分析及預(yù)防措施[J];電源技術(shù)應(yīng)用;2013年02期

10 李曉豁;張惠波;戰(zhàn)林;閆建偉;;天輪處提升鋼絲繩的曲率和撓率分析[J];世界科技研究與發(fā)展;2012年02期

相關(guān)博士學(xué)位論文 前2條

1 王大剛;鋼絲的微動損傷行為及其微動疲勞壽命預(yù)測研究[D];中國礦業(yè)大學(xué);2012年

2 浦漢軍;起重機(jī)用不旋轉(zhuǎn)鋼絲繩理論研究及其壽命估算[D];華南理工大學(xué);2012年

相關(guān)碩士學(xué)位論文 前7條

1 王斌;直線段鋼絲繩的力學(xué)模型研究和數(shù)值分析[D];五邑大學(xué);2015年

2 劉玉輝;鋼絲繩內(nèi)在特性和力學(xué)性能的研究[D];太原理工大學(xué);2014年

3 谷海濤;起重機(jī)用鋼絲繩受力分析及疲勞壽命估算研究[D];太原科技大學(xué);2013年

4 聶金寧;電纜牽引機(jī)關(guān)鍵零部件有限元分析與結(jié)構(gòu)優(yōu)化[D];濟(jì)南大學(xué);2012年

5 黃曉瓊;捻制方式對鋼絲繩力學(xué)性能的影響[D];太原科技大學(xué);2011年

6 賈尚雨;不旋轉(zhuǎn)鋼絲繩的力學(xué)特性與失效研究[D];華南理工大學(xué);2011年

7 張惠波;提升鋼絲繩幾何特性及有限元分析研究[D];遼寧工程技術(shù)大學(xué);2011年

，

本文編號：1879727