Stress analysis of spur gear pdf

Modeling and finite element analysis of spur gear semantic scholar. Wed like to understand how you use our websites in order to improve them. Stress analysis of spur gear by using different materials. The contact stress in the mating gears is the key parameter in gear design. Gears are classified as spur, helical, bevel, worm etc. The random load time history is transformed in to frequency.

The teeth project radially, and with these straightcut gears, the leading edges of the teeth are aligned parallel to the axis of rotation. Stress analysis has been a key area of research to minimize failure and optimize desi gn. Each gear tooth may be considering as a cantilever beam, when it transmits the load, it subjected to bending. This study utilizes a twodimensional finite element model to calculate the contact stress in a pair of mating spur gears. Karthik, finite element analysis of spur gear set 2012. Stress analysis on spur gears using ansys workbench 16. This paper gives a finite element model for investigation of the stresses in the tooth during the meshing of gears for material steel 15ni2cr1mo28. Further modal analysis is carried out to determine the dynamic characteristics of the gear model. In order to perform contact analysis while meshing the gear and the pinion, the geometrical shape of the meshing gear and pinion needs to be modeled. Contact stress and shear stress analysis of spur gear.

Keywords spur gear train, pitting, hertz contact stress, module, molding and casting, strain gauge, gear ratio. The spur gear is sketched and modelled in ansys design modeller and the contact stress analysis is done in mechanical ansys multiphysics. This paper presents the stress analysis of mating teeth of spur gear. The model involves the involute profile of a spur gear. Pdf bending stress analysis of spur gear researchgate. Analysis and formulation of spur gear stresses with different tip.

Pdf gears are widely used for the power and motion transmission in various systems. Spur gear contact stress analysis and stress reduction by. Stainless steel spur gear, static load, contact stress, bending stress, total deformation, ansys workbench 16. Spur gear is the most basic gear used to transmit power between two parallel shafts with almost 99% efficiency. Hertz contact stress involutes gear tooth contact stress analysis one of the main gear tooth failure is pitting which is a surface fatigue failure due to many repetition of high contact stresses occurring in the gear tooth surface while a pair of teeth is transmitting power. Spur gear tooth stress analysis and stress reduction. In this thesis, contact stress analysis of spur gear is studied using finite element analysis. Analysis revealed that aerofin shaped hole introduced along the stress flow direction yielded better results.

Among the various types gears spur gear with involute profile is the most simplest considering the design and manufacturing cost 1. Gear design, spur gears, gear dynamics, finite elanent analysis. A finite element model of spur gear is considered for analysis and compared with the analytical method and stress relieving features of various sizes are inserted on gear teeth at root area. It requires the better analysis methods for designing highly loaded spur gears for power transmission systems that are both strong and quiet. Introduction spur gears are the simplest and most common type of gear. The project aims at the minimization of both contact stress as well as deformation to arrive at the best possible combination of driver and driven gear. Dynamic load and root stress analysis of spur gears xrnmbx. Highest and lowest points of singletooth contact in spur gears. Contact stress analysis for a pair of mating gears. A finite element model of spur gear is taken into consideration for evaluation and compared with the analytical method and stress relieving functions of diverse sizes are inserted on gear teeth at. Pdf in this paper, the main purpose is first, to determine contact stress on involute spur gear teeth by using analytical and numerical approaches and. The crucial requirement of effective power transmission in various. The study in this paper shows that the complex design problem of spur gear which requires fine software skill for modeling and also for analyzing. Reckoning the bending stress and total deformation of gear tooth is.