本文選題：連桿滾輪式翻板閘門 + 有限元分析　； 參考：《遼寧工程技術(shù)大學》2014年碩士論文

【摘要】：連桿滾輪式翻板閘門是水壓力控制門板平衡轉(zhuǎn)動啟動閘門的一種閘門形式,以閘門自身的重力和水壓力為動力在一定水位條件下自動開啟和回關,因此無需其它啟閉閘門的動力。與其它閘門相比,這種閘門在各類水利工程中應用廣泛,具有節(jié)省材料、施工工期短、反映及時準確、對環(huán)境干擾小等優(yōu)點,即美化了環(huán)境又產(chǎn)生了良好的經(jīng)濟和社會效益。文章以阜新市玉龍湖鋼筋混凝土水力自控翻板閘門工程為研究對象,針對連桿滾輪式翻板閘門設計中的盲點,實際工作時產(chǎn)生的問題展開研究,通過理論分析和數(shù)值模擬,分析出三種不同水位情況時門板的應力應變分布及變化規(guī)律,進而利用該結(jié)果對閘門初始傾角、門板配筋等內(nèi)容進行優(yōu)化。本文完成了以下研究工作：(1)根據(jù)《水閘設計規(guī)范》(SL265-2001)、《水工鋼筋混凝土設計規(guī)范》(SL191-2008),并結(jié)合連桿滾輪式翻板閘門的研究背景和研究現(xiàn)狀,指出門板設計中的盲點,提出了課題研究的必要性。并根據(jù)連桿滾輪式翻板閘門的工作原理,論述了連桿滾輪式翻板閘門的設計計算方法。閘門過水時動水荷載轉(zhuǎn)化成靜水壓力的簡易近似方法；通過以上理論分析,得到閘門在后傾14°、22°、52°時,閘門受力最為典型。(2)利用有限元軟件ADINA分別分析建立了閘門門板在三種工況下的數(shù)值分析模型。通過數(shù)值模擬分析,得到各點應力和位移；對比分析三種工況的數(shù)值模擬計算結(jié)果,總結(jié)出不同工況時門板的應力應變在閘門上的變化規(guī)律。其研究結(jié)果表明：閘門在受到水壓力作用下,完全后傾過程中,閘門各點應力及應變逐漸增大,背面支座頂部位置處增大幅度最大；在閘門跨中及支座內(nèi)側(cè)3個截面是應力最大區(qū)域,應設為承載力控制截面；閘門頂面為應變最大區(qū)域,應設為變形控制截面及裂縫控制截面。(3)針對閘門在設計過程中的相關因素進行了簡要的結(jié)構(gòu)優(yōu)化,并得到了門板傾斜角的最優(yōu)設計參數(shù)。從對閘門的長期穩(wěn)定性研究發(fā)現(xiàn)：在蓄水條件下,閘門后傾角度理想值為14°。
[Abstract]:Connecting rod rolling wheel flip gate is a kind of gate form of water pressure control door plate balance rotation and start gate. It automatically opens and closes under certain water level condition with gravity and water pressure of gate itself as power. Therefore, there is no need for the power of other gates. Compared with other gates, this kind of gate is widely used in all kinds of water conservancy projects. It has the advantages of saving materials, short construction period, timely and accurate reflection, little interference to the environment and so on. It beautifies the environment and produces good economic and social benefits. Taking the hydraulic automatic control gate engineering of Yulong Lake in Fuxin City as the research object, aiming at the blind spot in the design of the connecting rod rolling wheel gate, the problems arising from the actual work are studied, and the theoretical analysis and numerical simulation are carried out. The stress-strain distribution and variation law of the gate plate under three different water level conditions are analyzed, and the initial dip angle of the gate and the reinforcement of the gate plate are optimized by using the results. This paper has completed the following research work: (1) according to "Sluice Design Code" (SL265-2001), "hydraulic reinforced concrete Design Code" (SL191-2008), and combined with the research background and research status of the connecting rod roller tumbling gate, the blind spot in the door plate design is pointed out. The necessity of research is put forward. According to the working principle of the connecting rod rolling wheel gate, the design and calculation method of the connecting rod roll wheel flip gate is discussed. A simple approximate method for transforming the dynamic water load into hydrostatic pressure when the gate passes water is obtained when the gate is tilted backward at 14 擄~ 22 擄~ 52 擄through the above theoretical analysis. The stress of the gate is the most typical. (2) the numerical analysis model of the gate plate under three working conditions is established by using the finite element software Adina. Through numerical simulation and analysis, the stress and displacement of each point are obtained, and the numerical simulation results of three working conditions are compared and analyzed, and the variation law of stress and strain of door plate on the gate under different working conditions is summarized. The results show that under the action of water pressure, the stress and strain at every point of the gate increase gradually, and the maximum increases at the top of the back support. In the middle of the gate span and the inner side of the support, the three sections are the maximum stress areas, which should be set as the bearing capacity control section, and the top plane of the gate is the maximum strain region. The deformation control section and the crack control section should be set. (3) the structural optimization of the relevant factors in the design process of the gate is carried out, and the optimum design parameters of the slanting angle of the gate plate are obtained. From the study of the long-term stability of the gate, it is found that under the condition of water storage, the ideal value of the backward tilting angle of the gate is 14 擄.
【學位授予單位】：遼寧工程技術(shù)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TV663

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