Load Optimization of a Single-Sided Electromagnetic Elevator

This study investigates load optimisation in an existing elevator system to evaluate variations in thrust relative to defined performance objectives—thrust and efficiency. Using the elevator’s actual design specifications, simulations were conducted to assess performance under varying load conditions. A user-driven iterative optimisation algorithm, termed the Wire Gauge Variation and Slot/Tooth Ratio (WGVSTR), was developed and implemented in MATLAB. The key advantage of the WGVSTR algorithm lies in its flexibility, allowing users to achieve desired optimisation goals by adjusting relevant design parameters. The analysis focuses on identifying the load condition that produces a thrust output closest to the target value while maintaining efficiency. The total weight of the elevator system without passengers is 1680 kg. Passenger loads, with each passenger assumed to weigh 75 kg, were incrementally added in eight steps up to 600 kg, exceeding the allowable limit of 375 kg (five passengers) for the existing model. Simulation results show that thrust and efficiency remained stable from Steps 1 to 5, corresponding to total loads of 1755 kg, 1830 kg, 1905 kg, 2055 kg, and 2130 kg. The 20