International Journal of Engineering and Techniques - Volume 2 Issue 5, Sep – Oct 2016 RESEARCH ARTICLE
OPEN ACCESS
Design Modification and Analysis of Flywheel Using in Thresher Machine SIRGIREDDY CHINNAANKI REDDY1, N.KEERTHI2 1
M.Tech Student, Department of Mechanical Engineering, Assistant Professor, Department of Mechanical Engineering, Annamacharya Institute of Technology and sciences, Rajampet 2
Abstract: A flywheel is a mechanical device with a significant moment of inertia used as a storage device for rotational energy. Flywheels resist changes in their rotational speed, which helps steady the rotation of the shaft when aABSTRACT fluctuating torque : is exerted on it by its power source such as a piston-based engine, such as a piston pump, is placed on it. The flywheel are different types such as solid disk, Spoke type, rim type, tapered type. In solid disk flywheel type it is provided with hub and disk. Solid disk flywheels are less capable of storing energy. Then spoke type flywheel are capable of storing more energy with greater moment of inertia than any other type of flywheel. In this work solid disk, spoke type flywheel are designed by using CATIA software. The spoke type flywheel is modeled with 6 spokes and 5 spokes with and without taper. Structural analysis and Modal analysis by using ANSYS software is done to determine the stresses and frequencies respectively by considering the different materials Cast iron, Aluminum Alloy 6061 & S-glass materials. From the above analysis, the better material for the flywheel is determined.
I. INTRODUCTION A flywheel is an inertial energystorage device. It absorbs mechanical energy and serves as a reservoir, storing energy during the period when the supply of energy is more than the requirement and releases it during the period when the requirement of energy is more than the supply. Focuses on exploring the effects of flywheel geometry on its energy storage/deliver capability per unit mass, further defined as Specific Energy. Proposed computer aided analysis and optimization procedure results show that smart design of flywheel geometry could both have a significant effect on the Specific Energy performance and reduce the operational loads exerted on the shaft/bearings due to reduced mass at high rotational speeds. FE analysis is carried out for different geometry of the flywheel and maximum von misses stresses and total deformations are determined. Thresher machine much popular in Indian agriculture sector for threshing grains. Thresher machine are power driven constructed for separate the comb from grain. Thresher machine take power from electric motors or diesel engines. These machine are
ISSN: 2395-1303
easily available in number of models by different output capacity. These machines used to separate the cob from grains. Now in India most of the farmer’s used thresher’s machine for threshing grain like soybean, maize, wheat, jawar, etc. In previous year farmer resort manual means of threshing, which results into less efficiency, more wastage and much cost spend on labor. Thresher machine constructed for separate cob from the grain. It was constructed from locally available and its cost is very low, affordable, easy transportable. II. MATERIAL SELECTION Due to the high density of cast iron the weight of the component is high. so it is necessary to reduce the weight of the component by considering high strength to weight ratio materials like aluminum alloy 6061 and s- glass. The material properties of these alternatives are shown in table 2.1.
Table 2.1: Material Properties Materi al
Density (kg/m3)
http://www.ijetjournal.org
Young’s modulus (MPa)
Poisson’ s ratio
Page 146