Research Information System
JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES, vol.13, no.8, 2025 (SCI-Expanded, Scopus)
PurposeThis study investigates the influence of different stator designs, key components in electric motors, on vibration and deformation behavior through finite element analysis (FEA). The aim here is to reveal the vibration behavior of different stator designs in isolation and their effects on efficiency when integrated into the motor structure, thereby providing comparative data on the potential relationship between these two parameters and identifying the most favorable design from a structural perspective. The study presents the results arising from design variations without explicitly addressing the relationship between vibration and efficiency.MethodsThe analysis was conducted on a four-pole, 5.5 kW asynchronous (induction) motor. Vibration characteristics were evaluated across various stator tooth, slot, and duct configurations. The torque, natural frequency, and efficiency of the complete assembly, comprising different stator structures along with the rotor and shaft, were calculated. Modal analyses were then carried out to identify the natural frequencies of the stators. Based on these, harmonic response analyses were performed to assess deformation and normal stress across the 50-5000 Hz frequency range.ResultsThe findings revealed that the shape of the duct, whether rectangular or circular, had no significant effect on the natural frequency, provided that the surface area remained constant. At synchronous speed, designs with parallel teeth achieved approximately 79% efficiency, while those with tapered slots reached about 65%.ConclusionOverall, the study demonstrates that stators with parallel teeth and circular ducts undergo less deformation and offer higher efficiency compared to other design combinations. Although this situation suggests that efficiency may increase as vibration decreases, it is considered that this study provides a foundation for more detailed investigations to confirm this in future research.