me 630 final
TRANSCRIPT
Automated Design of a Single Cylinder Internal Combustion Engine
ME 630Spring 2015
California State University, Northridge
Project by:Bhavin Sampat
Siddhesh SawantDhaval Prajapati
Rahul GoregaonkarGurpreet Singh Sandhu
Instructor:Dr. Stewart Prince
In this overall study, we will: Design a single cylinder internal combustion engine, specifically the connecting rod
and crankshaft in such a way that their main features are easily manipulated, Perform a motion study on the assembly to yield force and motion information, Perform a stress simulation study in order to properly size components based on a
desired, factor of safety Automate the process.
Objective
Assumptions SolidWorks assembly has been created, consisting of block, crankshaft, piston wrist
pin, head, valves, cam and connecting rod parts. Piston and head material is aluminum, crank, valves, valve springs, wrist pin and
connecting rod are 1020 CD steel, block is cast iron. Any part of the engine can be added and altered to make a more “realistic” engine
design. Crankshaft has crank pin diameter “Dia_Cpin.” Starting dimensions are taken directly off of solid models, both stroke and bore are
fixed. 6. All static FOS are 2.5 based on Von Mises.
Position Analysis
SolidWorks MATLAB
Velocity Analysis
SolidWorks MATLAB
Acceleration Analysis
SolidWorks MATLAB
Force Analysis
SolidWorks MATLAB
Static Stress Study
• Static FOS - 35• Maximum Von Mises stress
Unbalanced Connecting Rod
Balancing for acceptable shaking forces
Static stress study after Balancing
• Static FOS - 94• Maximum Von Mises stress-
Model with Valve Train Assembly
Total Simulation
Conclusion We have optimized the engine using specific values. We have used software's like solid works, mat lab and
VBA to analyze our model. Done automation of the system and completed the loop. Reduced the shaking forces by adding balancing masses FOS comes out to be under permissible limits.