Optimization and Force Analysis of Bar Linkage Hinge Point of Self Erecting Tower Crane

Abstract:

In order to reduce the cylinder work force on pull tower linkage of self-erecting tower crane, the geometric parameters of hinge points about linkage mechanism were optimized. Through the force analysis to whole system of bar linkage, the cylinder force of bar linkage is regarded as optimization objective function, and the geometric parameters of working devices hinge points are used to variables, then, the optimization model is established. The optimization design is conducted based on the fmincon function of MATLAB optimization toolbox. The curve about force of the cylinder with the towers rotation angle variation can be obtained. Comparison of the results before and after optimization is showed that the maximum force of cylinder is reduced 11.5%. It is shows the optimization method is quickly and effectively. The results of parameter optimization improve the working performance of the self-erecting tower crane.

• Periodical: Applied Mechanics and Materials (Volumes 385-386)
• Pages: 150-153
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.385-386.150
• Online since: August 2013
• Authors: Ji Man Luo, Yu Zhen An, Ming Shan Zhang, Yue Liu
• Keywords: Bar Linkage, Force Analysis, Optimization Design, Pivots Position, Self Erecting Tower Crane

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DOI: 10.1016/j.mechmachtheory.2007.12.006