Configuration Optimization of Truss Structures Using Harmony Search Heuristic Algorithm


Article Preview

Most structural optimization methods are based on mathematical algorithms that require substantial gradient information. The selection of the starting values is also important to ensure that the algorithm converges to the global optimum. This paper describes a new structural configuration optimization method based on the harmony search (HS) meta-heuristic algorithm. The HS algorithm does not require initial values and uses a random search instead of a gradient search, so derivative information is unnecessary. A benchmark truss example is presented to demonstrate the effectiveness and robustness of the proposed approach compared to other optimization methods. Results reveal that the proposed approach is capable of solving configuration optimization problems, and may yield better solutions than those obtained using earlier methods.



Advanced Materials Research (Volumes 26-28)

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee




K. S. Lee and J. K. Song, "Configuration Optimization of Truss Structures Using Harmony Search Heuristic Algorithm", Advanced Materials Research, Vols. 26-28, pp. 793-796, 2007

Online since:

October 2007




[1] Geem, Z. W., Kim, J. -H., and Loganathan, G. V. (2001). A new heuristic optimization algorithm: harmony search., Simulation, 76(2), 60-68.


[2] Imai, K., and Schmit, A. L., Jr. (1981). Configuration optimization of trusses. J. Struct. Div., ASCE, 107(ST5), 745-756.

[3] Felix, J. E. (1981). Shape optimization of trusses subjected to strength, displacement, and frequency constraints. Master's Thesis, Naval Postgraduate School.

[4] Yang, J. P. (1996). Development of genetic algorithm-based approach for structural optimization. PhD Thesis, Nanyang Technol. Univ., Singapore.

[5] Soh, C. K. and Yang, J. P. (1996). Fuzzy controlled genetic algorithm search for shape optimization. J. Comp. in Civ. Engrg., ASCE, 10(2), 143-150.

[6] Rajeev, S., and Krishnamoorthy, C. S. (1997). GA-based methodologies for design optimization of trusses. J. Struct. Engrg., ASCE, 123(3), 350-358.


[7] Yang, J. P., and Soh, C. K (1997). Structural optimization by GAs with tournament selection. J. Comp. in Civ. Engrg., ASCE, 11(3), 195-200.