Design and development of a novel tunable electrorheological fluid (ERF) damper-foundation to attenuate residual vibrations in machine tools

Residual vibrations in machine tools hamper accuracy and productivity. The attenuation of residual vibrations has been an industrial concern for decades. Meanwhile, the residual vibrations' vibration pattern reveals that the support foundation's damping capabilities predominantly influence them. Therefore, inserting dampers in any other location on a machine tool (such as a machine column) is ineffective. Hence, the scope of inserting the damper into the machine foundation needs to be verified. However, conventional machine mounting systems (concrete foundation and rubber mounts) equally respond to all variable inputs. Both these flocks resulted in inadequate dampening and perhaps poor accuracy. This paper provides a first-generation model of a semiactive-viscous damper (ERF damper-foundation) with tunable damping facilitating machine installation. Controlled experimentation by exposing the developed damper foundation to excitations of medium duty lathe machine confirms its effectiveness and obtains over 48% attenuation compared to a conventional concrete foundation

DESIGN AND ANALYSIS OF A FRONT SUSPENSION COIL SPRING FOR THREE WHEELER VEHICLE

Basically the spring is a flexible component of suspension system. In Modern transport vehicles usually use light coil springs. For this reason present paper used the analytical methods and finite element analysis for the selection of helical compression spring with number of turns. Using Finite Element Analysis completed the modelling, meshing and post processing of front suspension spring. The present work attempts to analyze the load of the three wheeler vehicle front suspension spring with SP ST GRD II material. This investigation includes comparison of software and theoretical analyses of coil spring made of SP ST GRD II material suggested the suitability for optimum design. This work also determined the structural strength of coil spring using the finite element analysis. Based on theoretical and software result comparison the optimum turns which meet all requirements was suggested

Design and Analysis of A Front Suspension Coil Spring for Three Wheeler Vehicle

Basically the spring is a flexible component of suspension system. In Modern transport vehicles usually use light coil springs. For this reason present paper used the analytical methods and finite element analysis for the selection of helical compression spring with number of turns. Using Finite Element Analysis completed the modelling, meshing and post processing of front suspension spring. The present work attempts to analyze the load of the three wheeler vehicle front suspension spring with SP ST GRD II material. This investigation includes comparison of software and theoretical analyses of coil spring made of SP ST GRD II material suggested the suitability for optimum design. This work also determined the structural strength of coil spring using the finite element analysis. Based on theoretical and software result comparison the optimum turns which meet all requirements was suggested