Current Volume 9
Simulation Based Performance Analysis of Gearbox Systems Under Varying Load And Speed Conditions
Abstract
This study uses MATLAB-based simulations to compare the performance of spur and helical gear systems under varying load and speed conditions. A dynamic model was developed to assess eight some important performance parameters, including gear mesh frequency, power loss, vibration, stress concentration, torque transmission efficiency, bearing reaction force, shaft misalignment sensitivity, and temperature rise. The system was tested with a sinusoidal load torque ranging from 30 to 70 Nm, and an input speed varying between 700 and 1300 RPM. At a representative time point (t = 5 s), the spur gear system showed a gear mesh frequency of 333.33 Hz, power loss of 418.8 W, and a vibration amplitude of ±0.8, whereas the helical gear had lower values across all metrics 261.75 W power loss and ±0.4 vibration amplitude. The stress concentration was also higher in the spur gear (63.7 MPa) compared to the helical gear (57.3 MPa). In terms of torque transmission, the helical gear achieved 95% efficiency, slightly better than the spur gear’s 92%. The helical system also had lower bearing reaction forces (633.3 N), less sensitivity to shaft misalignment (0.1° vs. 0.3°), and experienced a smaller temperature rise (36.3°C vs. 42.1°C). The results highlight that helical gears deliver more stable, efficient, and reliable performance under dynamic operating conditions, making them better suited for high-demand and precision-driven applications.
Keywords
Gearbox Systems, Dynamic Condition, Performance Analysis, Modeling.
Citations
IRE Journals:
Raphael Okosiemiema , Friday Sorka Bright
"Simulation Based Performance Analysis of Gearbox Systems Under Varying Load And Speed Conditions" Iconic Research And Engineering Journals Volume 8 Issue 12 2025 Page 1480-1485
IEEE:
Raphael Okosiemiema , Friday Sorka Bright
"Simulation Based Performance Analysis of Gearbox Systems Under Varying Load And Speed Conditions" Iconic Research And Engineering Journals, 8(12)
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