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Power Axial force in N center distance in mm Radial force in N Gear ratio Tangential force in N Compressive stress in N/mm² Static load produced in N Bending stress in N/mm² Dynamic tooth load in N Endurance stress in N/mm2 Beam Strength of the gear tooth Design Compressive stress in N/mm² Incremental load due to dynamic action Design Bending stress in N/mm² Dynamic factor/Deformation factor Young's modulus in N/mm2 Pitch circle diameter of pinion design torque in N-mm Design tooth load Helix angle in degrees Ratio of band a Wear tooth load in N Correction factor Minimum Normal Module Velocity factor Pressure angle Service factor Density Poisson's ratio Face width in mm Number of teeth on pinion Circular pitch Number of teeth on gear Speed in RPM Virtual Number of teeth Pressure angle Ratio factor Normal pressure angle Peripheral velocity in m/s Shear stress Diameter of the pinion in mm Torque transmitted Diameter of the pinion in mm Diameter of shaft in mm Pitch line velocity in m/s Thickness of Key Lewis Form factor width of key Normalpitch
Gear s are one of the most critical components in mechanical power transmission systems. Today's competitive business in the global market has brought increasing awareness to optimize the gear design. The gears are generally used to transmit power or torque and the efficiency of transmission is very high when compared to other kind of transmissions. The helical gear offers high contact and more friction which avoids slippage when compared to spur gear. To estimate the bending stress, threedimensional solid models for different number of teeth are generated by CATIA that is powerful and modern modeling software and the numerical solution is done by ANSYS, which is a finite element analysis package. The analytical investigation is based on Lewis stress formula. The aim of the present study is to focus on reduction of weight and there byreducing the unbalance forces setup inthe system.
Gear design, Computer aided analysis, highspeed helicalgear, dynamic analysis
