Abhinav Puri
Department of Mechanical Engineering, Delhi Technological University, New Delhi, India
Aaditya Kumar
Department of Mechanical Engineering, Delhi Technological University, New Delhi, India
Download PDFA rotating circular disc containing teeth connected to another part with teeth and is used to transmit torque is called a gear or multilobed cams. Different types of gears include spur gears, helical gears, bevel gears, herringbone gear, rack and pinion, epicyclic gear etc. Gears today are used in almost all the machines ranging from small clocks to large machines. Thus structural analysis of gears has become a popular and vital area of research. Spur gear have teeth cut parallel to the axis and are used for parallel shafts. They have an involute profile which remains same along the face width of the gear. Helical gears, similar to spur gear, have an involute profile although this profile is perpendicular to the tooth element which depends on the helix angle. Since both helical and spur gear are used for radial load it brings forth the question that which gear is better of the two and when to use either one of them. In this paper bending and contact stresses are analyzed on both the gears using the finite element method in ANSYS. Solidworks software was used to design the gear models based on Lewis equation which were then tested in ANSYS. Finally the two gears are compared with each other.
Keywords: Gear; Pinion; Contact Stresses; Finite Element Method; Von- Mises Stress
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