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The Research and Application of Optimized Desigh of Concrete Pump Truck Placing Boom

Author: ZhengYongSheng
Tutor: ZhouZhenPingï¼›ZhaoBin
School: Jilin University
Course: Mechanical Engineering
Keywords: Concrete Pump Booms Optimization FEM Test
CLC: U469.65
Type: Master's thesis
Year: 2011
Downloads: 173
Quote: 1
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Abstract


Is a kind of concrete pump concrete pump mounted on a dedicated vehicle chassis or on a special vehicle for transporting concrete mixer construction will be concrete, continuous, uniformly pumped directly to the concrete pouring point high added value of special operations vehicles. Played by the various components of the machine's function points, which mainly include booms, pumping section and special chassis. In this paper, XCMG Construction Machinery Mitsuhashi 46 m concrete pump R \u0026 D projects to boom as the research object, from the overall design, structural design, mechanical design, test verification, and several other aspects of the booms to optimize the analysis, research and design formed based on ANSYS analysis software platform and VB programming language software analysis, calculation and optimization methods for the optimization of series pump truck boom design provides strongly support and improve design efficiency and quality, shorten the development cycle. Meanwhile, for the next boom dynamic response, fatigue analysis and parametric modeling software development foundation. The main contents are as follows: 1. Boom structure optimization hinge point location using the analytical method booms stress analysis, the establishment of the cylinder, connecting rod force mathematical model. Minimum force to the cylinder target selection optimization methods boom structure dumplings position to optimize the analysis. 2 Based on ANSYS platform booms to optimize the structure using the meshing tools, solid model geometry in the surface extraction and processing, meshing, finite element add information to form the finite element model. Fully extended boom levels on the working conditions of linear and nonlinear structural stiffness, strength calculation and comparison of the data obtained the distribution of the various components of the stress and deformation, analyze and summarize boom structure mechanical characteristics of booms optimized for preparation. Fully extended boom levels on the working conditions of structural modal calculation gives a boom system diagram first six vibration modes and mode shapes of tables, combined with cloth rod vibration characteristics of the structure to make a qualitative analysis. Combined parameter calculation procedure boom boom plates preliminary optimized design, gives comparative results for the next boom optimization design theory. 3 booms dynamic stress-strain dynamic testing of the prototype test system booms selected patch area simulate actual working conditions of stress and strain data collection. By finishing stress-strain data obtained patch patch area along the direction of strain, and with pre-made finite element analysis results were analyzed, verification and correction finite element calculations, as quickly and accurately placing boom structure provides improved experimental data support.

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CLC: > Transportation > Road transport > Automotive Engineering > A variety of automotive > Special Purpose Vehicle > Cement mixer truck, cement truck
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