Optimization process of the truss structure using Finite Element Analysis: Step by step from 2D to 3D space

Arhami Arhami; Iskandar Hasanuddin; Masri Masri

doi:10.30811/jpl.v21i4.3933

Optimization process of the truss structure using Finite Element Analysis: Step by step from 2D to 3D space

Arhami Arhami, Iskandar Hasanuddin, Masri Masri

Abstract

This paper discusses the process of optimizing the truss structure step by step from 2D to 3D space using finite element analysis. This step-by-step optimization process is carried out to simplify the analysis of truss structures from simple to more complex cases. Optimization aims to obtain the minimum cross-sectional area and weight for each truss member. The stages of the optimization process carried out in this study are starting from a 2-dimensional (2D) truss structure with several two and five members to a 3-dimensional (3D) one-level tower with a total of 18 members. The optimum criterion as the constraint used is the full stress design method and the value of the cross-sectional area and weight of the structure as a result of optimization, leading to convergence during the iteration process. The tool used to run the iteration process is performed using Fortran software. The results of this optimization process are the total cross-sectional area (A) and a minimum of weight (W), that is, for a two-member truss A = 1 in² and W = 4 lb, for a five-member truss A = 3.48 in² and W = 14 lb. Furthermore, for a one-level of tower-space truss with a total of 18 elements, A = 57.91 in² is obtained and the optimum weight of the truss structure is W = 134.02 lb. From these results, it can be seen that the optimization process that starts from simple to complex cases can be carried out easily and still takes into account the existing constraints

Keywords

2D-truss, 3D-space truss. Optimization, finite element analysis

Full Text:

PDF

References

M. Artar and A. T. Daloğlu, “Optimum design of steel space truss towers under seismic effect using Jaya algorithm,” Structural Engineering and Mechanics, vol. 71, no. 1, 2019, doi: 10.12989/sem.2019.71.1.001.

Ankit Sharma and Sumit Pahwa, “Truss bridge structure frame section analysis by using Finite element analysis,” International Research Journal of Engineering and Technology, 2018.

S. S. Rao, Engineering optimization: Theory and practice. 2019. doi: 10.1002/9781119454816.

T. A. J. Nicholson, Optimization in Industry. 2017. doi: 10.4324/9781315125831.

R. K. Arora, Optimization: Algorithms and applications. 2015. doi: 10.1201/b18469.

D. Wang, M. Shang, and P. Sun, “Deformation Performance Analysis of a Truss Structure Based on the Deformation Decomposition Method,” Buildings, vol. 12, no. 3, 2022, doi: 10.3390/buildings12030258.

P. Saket and K. Pathak, “Bridge truss structure analysis with various Sections by using Finite element analysis,” International Journal of Research and Analytical Reviews (IJRAR) www.ijrar.org, vol. 82, no. 2, 2019.

Kunal M. Porwal, Jasmin Gadhiya, and Hardik Patel, “Comparative analysis of 2D roof truss configuration,” Journal of Emerging Technologies and Innovative Research (JETIR), vol. 5, no. 4, pp. 494–497, 2018.

C. W. Yee Zaw, K. Thu Zar, and K. Thant, “Roof Truss Design for Industrial Buildings,” International Journal of Advances in Scientific Research and Engineering, vol. 5, no. 7, 2019, doi: 10.31695/ijasre.2019.33425.

M. Kuryla, “Introduction to Finite Element Analysis (FEA) or finite element method (FEM),” Freak Weather, 2018.

Saeed Moaveni, Finite Element Analysis: Theory and Application with ANSYS, Fourth Edition. Pearson Education, 2015.

M. L. Malito, “Foundations of structural optimization: A unified Approach,” Journal of Mechanical Working Technology, vol. 10, no. 3, 1984, doi: 10.1016/0378-3804(84)90054-8.

DOI: http://dx.doi.org/10.30811/jpl.v21i4.3933