Redesign of Face Gear of Spinning Machine Using Finite Element Analysis

This paper gives the analytical technique to design face gear used in spinning mill. The faces used in the spinning mill are get fail due to tangential load coming on the tooth. This is due to improper use of the material of gear. The gears are made up of ordinary cast iron. The basic stress is very low, i.e. the allowable stress. By replacing the gear material the with high grade cast iron, which have allowable stress greater than the ordinary cast iron. This paper gives the detail analytical technique of design the face gear used in high spin spinning machine. The faces are manufactured by the process of shaping. The tooth loads are causing the failure of gear during working. The beam strength of the previous material of face gear of the tooth is calculated and new material strength is calculated.

In present day’s applications it is more and more significant to minimize space and material saving gears with wide applications in general machines for weight reduction and compact design. One option is to design the rim of gears as thin as possible in order to reduce maximum space. Design of thin rimmed gears for strength is the prime aim in order to bear high rotational speeds under harsh conditions. In present work, some studies relevant to finite element modelling and finite element analysis of thin rimmed gears are performed. These studies will assist in prospects and concerns of the thin-rimmed gears while designing them for moderate loading and with cost effectiveness. Finite element studies for static structural analysis, modal analysis and contact analysis simulating real-time conditions are presented.

Stress produced in gear is an important aspect which have strong impact on designing of gear for particula r application. S tress produced in matting gears depends on geometry of gear and geometry depends on pressure angle of gear. So study of effect of pressure angle on stress is of great importance. Stress produced in gear is also effected by rotational velocity. In this paper the effect of varition of r.p.m and pressure angle on stress produced in spur gear is determined using finite element method. CAD model of spur gear s is pre pared using modelling tool solid works. Stress analysis at different r.p.m and pressure angle is carried by analysis tool ansys software.

Journal of Energy Technologies and Policy, 2014

This paper present the design strategy for optimization of loaded meshed face gear set. Genetic algorithms are being widely used for optimization, search and neural network synthesis. A lot of work has been conducted using genetic algorithm for different engineering problems related to scheduling and process planning in industrial engineering, network optimization in computer engineering. The work dissertation deals with the optimization of loaded meshed face gear sets using genetic algorithm. Attention is focused on reducing the pressure of gear set subjected to constraints on the maximum pressure, contact location, pressure at slice 1 and pressure at slice 11. The optimum gear set using Genetic Algorithm calculate the pressure.

2014

Gears have wide variety of application. Their application varies from watches to very large mechanical units like the lifting devices and automotives. Gear generally fails when the working stress exceeds the maximum permissible stress. The main objective of this paper is to analyze the bending stresses occur on the gear tooth profile of gear used in gear box of special purpose machine also effect on bending stress by variation of the gear parameters. Face width and root radius are taken gear parameters, how stress redistribution are taken place by varying this parameter studied. The stresses are calculated with the help of the FEA this result are compared with the stresses calculated by Lewis equation. For this work parametric modeling is done using Pro-e WF 5.0 and for analysis ANSYS 12.0 workbench is used. This work helpful to conclude effect of bending stress on gear tooth profile by variation of gear parameters also give the comparison of FEM method with analytical calculation.

IRJET, 2022

Power transmission is the major requirement in any of the mechanical machine without transmission, there will be no relative motion or power within the system. Usually gears are the simplest and most widely used in the transmission of power. Several different types of gears are available in the market for various machine to their receptiveness. In some cases or most of the time gears required in any of the machine varies to its application from shredding machine to prototype models of electronic in the development. So, at all the time one can just not select the same materials for all of the use, sometimes it becomes necessary to take care of weight as well as cost. So our project helps in the determination of gears using composite and studying the failure criteria & solution to enhance its strength by comparing the gears design according to the material selection criteria for Designing & solving the FEM solution using ANSYS workbench. Because composite usually provides improved strength mechanical properties. Our work is mostly concerned with the investigation of differences for metal and composite gears failure and enhancement of strength for the required boundary condition.

2005

One of the most important and unavoidable part of each and every rolling machinery is the gears. Gears are of many types and kinds, they are used in watches to colliders. As in the era of mass production and fast movement gears are inevitable, so analysis of gears should be carried out to find the merits and demerits, to correct them and to design new. In this paper we used to review the analysis of gear both in analytic (Hertizian & Lewis) as well as using software(ANSYS) and their comparison. Also the important findings about the properties of gear

2015

To objective of this paper to present the recent development in the field of gear failure analysis. By the help of this paper we can know about different types of failure detection and analyzing technique which is used to reduce these failure from gears. The basic reasons of gear failure misalignment of gear, spalling , pitting etc, follow the reason of gear failure. Gears generally fail when the working stress exceeds the maximum permissible stress. Advances in engineering technology in recent years have brought demands for gear teeth, which can operate at ever increasing load capacities and speeds. The gears generally fail when tooth stress exceed the safe limit. In this study the technology of gears is presented along with the various types of failure that gears have. The causes of these failures are studied. The type of stress related failure due to (fatigue failure) of gear tooth because of stress concentration is detailed in this paper

Forschung im Ingenieurwesen

An analytical approach for the calculation of the load distribution on the flank of crown gears, based on the theory according Placzek, is proposed. The teeth of the face gear and the pinion are divided into equidistant slices perpendicular to the normal plane, where the local forces, resulting from the acting torque, are calculated under consideration of the local deformation behavior of the gear system. By considering the geometrical conditions like radii of curvature, etc., the local Hertian stresses can be determined. Based on these considerations, the impact of the stiffness, the helix angle and the offset on the local force or load distribution is illustrated. Finally the lubricant film thickness is calculated by using the EHD-theory. Keywords Face gear • Crown gear • Contact pattern • Load distribution 1 Introduction For transformation of torque and speed along two crossing axes it is usually used a bevel-or worm-gear set. Due to The results shown in this paper are based on the research project "Tragfähigkeit Kronenradverzahnung" (AZ: 981-11) at the gear rechearch center (FZG) funded by the "Bayerische Forschungsstiftung" in collaboration with "ebm-Papst Zeitlauf antriebstechnik" (Lauf a. d. Pegnitz).