混凝土泵車臂架剛?cè)狁詈夏P蛣恿W(xué)仿真與優(yōu)化
[Abstract]:At present, the concrete pump car is an indispensable mechanical device in the concrete pouring on the site of a civil construction site. It is a kind of folding arm rotation driven by hydraulic system, and at the same time, the boom can drive the movement of the feeding pipe. Can continuously and uniformly pump concrete to the designated location for pouring special vehicle. Based on the theory of multi-body dynamics, parameterized analysis and optimization design, the rigid and flexible models of the boom system are studied in this paper. Dynamic analysis; the flexible model is used to optimize the hinge position of the luffing mechanism, to reduce the maximum force of the cylinder, and the strength of the optimized boom system is analyzed and verified by the dynamic stress test. 1. Through the joint application of Pro/E,ANSYS and ADAMS, the rigid model and the rigid-flexible coupling model of the boom system are established. The dynamic simulation of the two models and the comparison of the results show that the latter model is more in line with the actual situation of the boom system. Lay the foundation for further analysis of arm system. 2. Based on the rigid-flexible coupling model of the arm frame, the stress of the oil cylinder of the luffing mechanism is studied by using the optimization module of ADAMS. The parameterized model of the boom system is established, and the coordinate optimization of several design variables with high sensitivity is carried out, which achieves the effect that the maximum force of the cylinder is obviously reduced. The model of boom is simulated and the dynamic load of boom is outputted into finite element software. The strength of boom system is analyzed and the results of finite element analysis are verified by dynamic stress test.
【學(xué)位授予單位】:揚州大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2013
【分類號】:TU646
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