Prediction of Compressor Torque due to Swash Angle Change by Using Multi Body Simulation

Compressor is one of rotating component in AC system and function of the compressor is to increase the pressure of refrigerant and circulate the refrigerant across the system. Swash plate compressor is generally used in automotive AC application due to its light weight and compact size. Torque required to operate the compressor is very important and Compressor torque for specific capacity need to be evaluated based on simulation result. For this, simulation tools are effectively used

Modeling and simulation are the key enablers to improve the design and development process. They are extensively used throughout the development cycle. MBD based simulation is more commonly used which gives better understanding of the movement of kinematic part. Reaction forces from the result will help in providing information for the CAE analysis. Many parameters like reaction forces, torque and power varying with shaft angle of rotation is predicted using MBD and result is analyzed. Rigid and Flexible body MBD analyses are generally used for the evaluation of model behavior as it evaluates structural integrity as well as the kinematic behavior of the component. MBD tools like Altair Motion view and Motion Solve are effectively used for the modeling and solving the analysis.

Suction and discharge pressure on the compressor induces stresses on the moving parts especially on piston and swash plate which is evaluated using Flexible body analysis. This will give better understanding on the durability of the compressor under dynamic conditions.