Structural Optimization on the Hydraulic Press by FEM and Mathematical Programming Algorithm

Abstract:

Structure strength and deformation of the preliminary hydraulic press design have been calculated by the finite element method, in which two working conditions have been considered, i.e. the centre-point load condition and the eccentric load condition. To solve the surplus structure strength globally and the localized stress concentration, the combined methodology of mathematical programming algorithm and the FEM has been utilized to redesign the hydraulic press. The optimization result shows that the mass of the press has been reduced greatly and the localized stress concentration has been eliminated. Besides that, the strength and stiffness in the optimized structure still meet the performance requirements.

• Periodical: Advanced Materials Research (Volumes 291-294)
• Pages: 2579-2585
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.291-294.2579
• Online since: July 2011
• Authors: Wu Jiao Xu, Ke Wei Chen, Yong Feng Ding
• Keywords: Finite Element Model (FEM), Hydraulic Press, Mathematical Programming Algorithm, Structural Optimisation

References

[1] Ma xun, Guo xue-xun, Zhaoyou-ping and Min xiao-wei: structural optimization and sensitivity analysis based on finite element method, mechanical science and technology Vol 21 (2002), pp.558-561（In Chinese).

[2] Yang xiu-ping, zong sheng-fa: Structural design of hydraulic press with finite element method, Heavy Machinery Vol 6 (2003), pp.38-41 （In Chinese).

[3] Xia Li-juan, Zheng Jing-ming and Jin Xian-ding: Optimal Design of Engineering Structures and ItsApplication, Journal of shanghai jiao tong university Vol 11 (2002), pp.1572-1575（In Chinese).

[4] Claus Still, Tapio Westerlund: A linear programming-based optimization algorithm for solving nonlinear programming problems, European Journal of Operational Research Vol 200 (2010), p.658–670

DOI: 10.1016/j.ejor.2009.01.033

[5] Xiaojie Xu, Yinyu Ye: A generalized homogeneous and self-dual algorithm for linear programming, Operations Research Letters Vol 17 (1995), pp.181-190

DOI: 10.1016/0167-6377(95)00002-2

[6] Luciano Lamberti, Carmine Pappalettere: Comparison of the numerical efficiency of different sequential linear programming based algorithms for structural optimization problems, Computers and Structures Vol 76 (2000), p.713–728

DOI: 10.1016/s0045-7949(99)00185-6

[7] Luciano Lamberti, Carmine Pappalettere: Improved sequential linear programming formulation for structural weight minimization, Comput. Methods Appl. Mech. Engrg. Vol 193 (2004), p.3493–3521

DOI: 10.1016/j.cma.2003.12.040

[8] Jeongwoo Han, Panos Y. Papalambros: An SLP filter algorithm for probabilistic analytical target cascading, Struct Multidisc Optim Vol 41 (2010), p.935–945

DOI: 10.1007/s00158-009-0450-9

[9] Luciano Lamberti, Carmine Pappalettere: Move limits definition in structural optimization with sequential linear programming. Part I: Optimization algorithm, Computers and Structures Vol 81 (2003), p.197–213

DOI: 10.1016/s0045-7949(02)00442-x

[10] Qin Dongchen, Qi Jianzhong, Zhang Mingcheng, Wu Hongxia and Chen Jiangy: Structural optimization design for hydraulic press beams, Forging technology Vol 2(2004), pp.49-52 （In Chinese).