| Self-propelled modular transporter is playing a more and more important role in theareas such as ship-building, brige-building and high speed railway, because of its longbody, big capacity and flexible steer. The modular transporter has large-number axises andtyres which makes it complicate when the transporter steers. Some of the tyres may rollunpurly, wear badly and have short lifetime if the steering mechanism is not designed verywell. Therefore, it is necessary to optimize the steering mechanism of the transporter. Thispaper optimized the steering mechanism of the6-axises modular transporter produced byJiangsu Haipeng Special Vehicle Company. Based on the optimization results, thetuansporter was produced. It steers very well and each tyre can almost roll purly.Firstly, this paper introduced the steering mechanism (machinery-drawbar steeringmechanism) of the transporter and calculated the real steering angle and ideal steeringangle. Based on this, the paper built the mathmatic model of the steering mechanism,written the MATLAB optimization program, optimized the location of the transpositionhole with the MATLAB optimization toolbox and got its coordinate.Then, the paper analyzed the steering torque resistance, built and optimezed thesteering mechanism virtual prototype model with ADAMS and got the coordinate of thetransposition hole of the steering arm. After this, the paper compared the optimizationresult of MATLAB and ADAMS and disposed the steering arm to make it manufacturable.The force of the disposed was analysed with ANSYS and the optimization method wasproved feasible.Finally, the Hydraulic system of the transporter steering mechanism was designed.Simulated and analyzed the Hydraulic system with AMESim and got its pressure curveand flow curve. Conclusions of the analysis in this paper are obtained for specific models.It provides a reference for the design of steering system of related models, greatly improveproduction efficiency and economy. |
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