本文關(guān)鍵詞：GPS1431型振動篩的動態(tài)仿真與結(jié)構(gòu)動力學分析　出處：《河北工程大學》2017年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 振動篩 運動仿真 結(jié)構(gòu)力學分析 模態(tài)分析 諧響應分析 結(jié)構(gòu)優(yōu)化

【摘要】：現(xiàn)在的選煤廠都在廣泛使用振動篩分設(shè)備,用振動篩進行篩分是處理煤炭的重要環(huán)節(jié),在煤炭的加工、篩分過程中起到了關(guān)鍵作用。本文首先介紹了振動篩分設(shè)備的現(xiàn)狀,并對振動篩分設(shè)備的研究和發(fā)展趨勢做了比較細致的闡述。本文的研究對象是GPS1431型振動篩,實地調(diào)研該振動篩篩箱的尺寸與工作性能,計算其相關(guān)系數(shù),得到振動篩運行的動力學與運動學相關(guān)參數(shù),再對該振動篩運用Solidworks軟件進行建模,能夠得到該振動篩的三維實體模型。對該振動篩進行虛擬樣機動態(tài)仿真,運用Adams運動仿真軟件可以得到仿真時振動篩篩箱關(guān)鍵點的速度、加速度與位移曲線,并與現(xiàn)場試驗、理論計算的結(jié)果進行比較,得到的結(jié)論是給出的參數(shù)與設(shè)計標準是完全相符的。對GPS1431型振動篩進行靜力學分析,建立篩箱的力學模型,分析篩箱的載荷類型,并計算出載荷大小。以載荷量作為根據(jù),對篩箱的關(guān)鍵部件采用ANSYS軟件做靜力學分析,施加載荷和約束,可以得到篩箱的應力分布圖和位移變形圖,由該結(jié)果可以得出篩箱的總體結(jié)構(gòu)比較合理,強度合適。對GPS1431型振動篩進行動力學分析,對篩箱做相應的簡化后分別進行模態(tài)分析和諧響應分析。在模態(tài)分析的過程中,可以得出振動篩篩箱前10階振型,了解振動篩的振動形態(tài);在諧響應分析的過程中,可以得出篩箱在0-100Hz頻率下的變形、應力和加速度響應,得出該篩箱在工況下存在的不足之處。綜合以上結(jié)構(gòu)力學分析結(jié)果,對該振動篩篩箱進行結(jié)構(gòu)優(yōu)化,得出相應的振型圖和響應圖,分析可得優(yōu)化之后該振動篩的安全性能更高,使用壽命更長。
[Abstract]:Now the coal preparation plants are widely using vibrating sieve separation equipment. Screening with vibrating screen is an important part of coal treatment, in the coal processing. Screening process plays a key role. Firstly, this paper introduces the current situation of vibrating screen separation equipment. The research and development trend of the vibrating screen sub-equipment is described in detail. The research object of this paper is GPS1431 vibrating screen. The size and working performance of the vibrating screen box are investigated in the field. The correlation coefficient is calculated and the dynamic and kinematics parameters of the vibrating screen are obtained. Then the model of the vibrating screen is modeled by Solidworks software. The three-dimensional solid model of the vibrating screen can be obtained. The virtual prototype dynamic simulation of the vibrating screen can be carried out, and the speed of the key point of the vibrating screen box can be obtained by using the Adams motion simulation software. The acceleration and displacement curves are compared with the results of field tests and theoretical calculations. The conclusion is that the given parameters are completely consistent with the design standard. The static analysis of the GPS1431 vibrating screen is carried out, the mechanical model of the screen box is established, and the load type of the screen box is analyzed. On the basis of the load quantity, the stress distribution and displacement diagram of the screen box can be obtained by static analysis of the key parts of the screen box by ANSYS software and the application of load and constraint. From the results, it can be concluded that the overall structure of the screen box is reasonable and the strength is suitable. The dynamic analysis of the GPS1431 vibrating screen is carried out. In the process of modal analysis, the first 10 vibration modes of the vibrating screen box can be obtained, and the vibration shape of the vibrating screen can be understood. In the process of harmonic response analysis, the deformation, stress and acceleration responses of the screen box at 0-100 Hz frequency can be obtained. According to the results of structural mechanics analysis above, the structure of the vibrating screen box is optimized, and the corresponding vibration pattern and response diagram are obtained. The safety performance and service life of the vibrating screen are higher and longer after the optimized analysis.
【學位授予單位】：河北工程大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TD452

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1 吳晗;GPS1431型振動篩的動態(tài)仿真與結(jié)構(gòu)動力學分析[D];河北工程大學;2017年

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本文編號：1416869