Document Type : Research Paper


Electromechanical Engineering, University of Technology, Baghdad, Iraq.


In this work, the structure of the linear elevator prototype had been investigated numerically using finite element method. The linear motor structure parameters analyzed using Maxwell ANSYS. The time-stepping method depending on Maxwell equations be applied for analyzing and optimizing the magnetic and force characteristics. While the elevator structure parameters were analyzed using ANSYS workbench based on the principle of virtual work. The frame considered as clamped- clamped beam, and the base of the car considered as thin plate with small deflection. The analysis done with maximum applied load of 360 N at 1.5 safety factor. The results show the distribution of the magnetic lines, the flux density values plus the leakage flux inside the slots. The maximum Von-Mises stress and the deformations of the frame and plate at maximum load are acceptable and present save design. In which the maximum deflection of the thin plate not exceed (thickness/5) at maximum design load.  


  • The maximum von- Mises stress and the deformation of elevator frame be acceptable.
  • The maximum deformation of car base plate be acceptable, which less than h/5  that satisfy the design boundary condition of ω<h/5.
  • The maximum stress and deformation that occur on the plate and frame of elevator present save design as compared with the mechanical properties of the materials’ selection.


[1] T. Tyni, and J. Ylinen, “Evolutionary bi-objective optimization in the elevator car routing problem,” European Journal of Operational Research,169(3), 2006.
[2] L. Janovsky, “Elevator mechanical design,” New York: Ellis Horwood Series, 1993.
[3] ˘lu U¨, Solmazog, and H. Akısın, “A review on the elevator car suspension calculations,” Elevator Technology 14: Proceedings of ELEVCON 2004, Istanbul, Turkey: IAEE Public, 2004.
[4] Y.A. Onur, and CE. Imrak, “Computer aided car frame modelling and stress analysis,” Elevator Technology 16: Proceedings of ELEVCON. Helsinki, Finland: IAEE Public, 2006.
[5] FC. Babalık , K. Avdar, M. Sakalar, and B. Meshur , “Analysis and finite elements method aided design of elevator car suspensions,” Asansor ANSYS, (55), 2003.
[6] Y. Feng, J. Zhang, and Y. Zhao, “Modeling and robust control of horizontal vibrations for high-speed elevator,” Journal of Vibration and Control, 15(9), 2009.
[7] J.A.-K. Mohammed, F. M. Mohammed, and R. Ahmed, "Design and optimization of a surface-mounted permanent-magnet linear synchronous motor with Maxwell ANSYS", Al-Khwarizmi Engineering Journal 15(3), 2019.
[8] R. Ahmed, F, M. Mohammed and J. Abdul-Kareem, “A single-side flat synchronous linear motor model,” IOP Conf. Series: Materials Science and Engineering 765, 2020. 
[9] S. Othman, J. Abdul-Kareem and F. M. Mohammed, “Implementation of Linear Elevator with High Riding Quality Based on S-Curve Profile,” The second international conference on electromechanical engineering and its applications (ICEMA-2021), Baghdad- Iraq, 2021.
[10] P. Langer, M. Maeder, C. Guist, M. Krause and S. Marburg, “More Than Six Elements per Wavelength: The Practical Use of Structural Finite Element Models and Their Accuracy in Comparison with Experimental Results,” Journal of Computational Acoustics, Vol. 25, 2017.
[11] H. Igarashi, “Semi-Analytical Approach for Finite Element Analysis of Multi-turn Coil Considering Skin and Proximity Effects,” IEEE Transactions on Magnetics, Vol. 53, Issue 1, pp. 1-8, 2017.
[12] F. Al-Shamma, F. F. Mustafa and S. M. Saliman, “An Optimum Design of Cam Mechanisms with Roller Follower for Combined Effect of Impact and High Contact Loads,” Al-Khwarizmi Engineering Journal, vol. 6, no. 4, 2010.
[13] A. S. Jalal, N. J. Baker and D. Wu, “Electrical Machine Design for use in an External Combustion Free Piston Engine, ”5th IET International Conference on Renewable Power Generation (RPG). London, UK, 2016.
[14] Y. FU, “Foundation of Finite Element Analysis, ” Wuhan University Press, 2006.
[15] S. P. Verma, “Design Optimization of 3hp, 4-Pole, 3-Phase, 50 Hz Induction Motor Employing Improved Genetic Algorithm,” NIET Journal of Engineering & Technology, Vol. 1, Issue 1, 2012.