本文選題：超大型罐籠 + 柔性罐籠　； 參考：《中國(guó)礦業(yè)大學(xué)》2015年碩士論文

【摘要】：超大型柔性罐籠在國(guó)內(nèi)仍處于起步階段,這種罐籠荷載重、變形大,罐體變形會(huì)影響罐籠與罐道、鋼絲繩、承罐裝置的相互作用。本文研究了柔性罐體的設(shè)計(jì)問(wèn)題,分析了罐籠在偏載狀態(tài)下的力學(xué)性能。本文建立罐籠的三維模型,編制參數(shù)化的有限元計(jì)算程序,分析盤(pán)體結(jié)構(gòu),采用控制變量法,對(duì)不同方案下的柔性罐體進(jìn)行偏載和疲勞分析,討論立柱型式、斜筋、罐耳布置等對(duì)罐體強(qiáng)度、剛度和抗疲勞性能的影響,對(duì)滾輪罐耳、立柱的剛度分配進(jìn)行優(yōu)化設(shè)計(jì),為超大型罐籠的設(shè)計(jì)提供依據(jù)。針對(duì)立柱的受力特點(diǎn),研究了疊加原理不成立時(shí)細(xì)長(zhǎng)梁的撓曲變形,給出撓曲方程、截面應(yīng)力、應(yīng)變的計(jì)算式,討論了梁在承受動(dòng)載荷時(shí)的變形情況,將結(jié)論用于罐體的力學(xué)分析。罐體是超靜定結(jié)構(gòu),本文將盤(pán)體視為剛性的,混合使用力法、位移法,由立柱的彎矩方程、撓曲方程、截面轉(zhuǎn)角方程、盤(pán)體的平衡方程、罐體的幾何連續(xù)性方程建立平面偏載作用下的靜力學(xué)模型,利用旋轉(zhuǎn)變換矩陣建立空間靜偏載模型,本文還考慮罐道缺陷對(duì)柔性罐籠在提升過(guò)程中的影響,分析罐道與罐耳之間的相互作用力,推導(dǎo)了超大型柔性罐籠偏載提升時(shí)的動(dòng)力學(xué)方程,同樣的方式也能用于罐籠在其他狀態(tài)下的力學(xué)分析。
[Abstract]:The superlarge flexible cage is still in its infancy in China. This kind of cage is heavily loaded and deformed, and the deformation of the tank body will affect the interaction between the cage and the cage, the wire rope and the tank bearing device. In this paper, the design of flexible tank is studied, and the mechanical properties of cage under eccentric load are analyzed. In this paper, the three-dimensional model of the cage is established, the parameterized finite element calculation program is worked out, the structure of the plate body is analyzed, the deflection load and fatigue of the flexible tank under different schemes are analyzed by the method of control variables, the type of column and the inclined reinforcement are discussed. The influence of jar ear arrangement on the strength, stiffness and fatigue resistance of tank body is discussed. The optimum design of stiffness distribution of roller drum ear and column is carried out, which provides the basis for the design of super large cage. According to the stress characteristics of the column, the flexural deformation of the slender beam is studied when the superposition principle is not established, the flexural equation, the calculation formula of the section stress and strain are given, and the deformation of the beam under the dynamic load is discussed. The conclusion is applied to the mechanical analysis of the tank. The tank is a statically indeterminate structure. In this paper, the disk body is regarded as rigid, the mixed force method, the displacement method, the moment equation of the column, the deflection equation, the section rotation equation, the balance equation of the disc body. The geometric continuity equation of the tank is used to establish the static model under the action of plane eccentric load, and the spatial static deflection model is established by using the rotation transformation matrix. The influence of the defect of the tank path on the lifting process of the flexible cage is also considered in this paper. In this paper, the interaction force between the tank tunnel and the jar ear is analyzed, and the dynamic equation of the lifting of the oversized flexible cage is derived. The same method can also be used for the mechanical analysis of the cage in other states.
【學(xué)位授予單位】：中國(guó)礦業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TD531.1

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本文編號(hào)：2035692