Internal Geneva Mechanism

AIM: To create the 3D model of the internal Geneva mechanism, to perform motion analysis by rotating the driver wheel and analysing it by plotting different variables.

OBJECTIVES

• To create 3D models for driver and driven wheels.
• To perform motion analysis by rotating the driver wheel at 10 rpm and 20 rpm
• To obtain a plot for contact betweent driving and driven wheel.
• To obtain a plot for angular displacement of the driven
• wheel.
• To obtain a plot for Angular velocity of the driving wheel.

INTRODUCTION

Geneva mechanism, also called Geneva Stop is one of the most commonly used devices for producing intermittent rotary motion, characterized by alternate periods of motion and rest with no reversal in direction. The rotating drive wheel is usually equipped with a pin that reaches into a slot located in the other wheel driven wheel) that advances it by one step at a time. An internal Geneva drive is a variant on the design. The angle by which the drive wheel has to rotate to effect one step rotation of the driven wheel is always smaller than 180° in an external Geneva drive and always greater than 180° in an internal one, where the switch time is therefore greater than the time the driven wheel stands still.
Motion studies are graphical simulations of motion for assembly models. You can incorporate visual properties such as lighting and camera perspective into a motion study. Motion studies do not change an assembly model or its properties. They simulate and animate the motion you prescribe for a model. You can use SOLIDWORKS mates to restrict the motion of components in an assembly when you model motion.

MOTION STUDY SETUP

The motion features of the software can assist with a wide range of motion study depending on how complicated your requirements are, and they
can be divided into three categories:
• Animation: If you simply wish to create some nice visuals for presentation or marketing without consideration of mass and gravity effects,
then animation is for you.
• Basic Motion: For an extra layer of complexity that takes into consideration the effects of mass, springs, gravity and physical collision
detection, then a Basic Motion study is more suited for your requirements.
• Motion Analysis: This is the top tier of motion study and takes into account a wider range of physical interactions such as impact effects,
damping, force, momentum, etc.

LINK:

https://drive.google.com/file/d/1nOUW-JAgK41UtMLT1XBtXsHM1CcTCMSh/view?usp=sharing