Parametric Modeling & Kinematic Analysis of a Grasshopper Engine (Creo)

Developed a fully parametric 3D model and dynamic simulation of a Grasshopper beam engine using Creo as part of an advanced CAD course. The project emphasized design intent, robust modeling strategy, and kinematic analysis of a multi-body mechanical system.

Key Contributions

• Led modeling strategy for critical components including the engine column and contributed to final system validation and analysis

• Performed static and dynamic interference checks to validate assembly integrity and identify design conflicts

• Contributed to overall assembly structure and final design validation, ensuring proper constraint definition and motion behavior

Technical Approach

• Built a fully constrained parametric assembly, modeling all components individually and integrating them into subassemblies and a complete system

• Applied design intent principles (symmetry, reference geometry, feature hierarchy) to create robust, editable part models

• Defined mechanical joints and linkages to simulate realistic motion of the piston–crank and valve systems

• Used Creo’s mechanism tools to perform kinematic analysis, generating position, velocity, and acceleration data for moving components

Results / Impact

• Successfully created a fully functional digital prototype of a Grasshopper engine capable of simulating real mechanical motion

• Validated assembly through interference detection, improving reliability and manufacturability of the design

• Demonstrated the ability to translate 2D technical drawings into a complete, motion-ready 3D system

• Gained experience in analyzing complex linkages and constrained motion systems, directly applicable to real-world mechanical design

Tools & Skills
Creo Parametric, Mechanism Design, Kinematic Analysis, Parametric Modeling, Assembly Constraints, Design Intent, Interference Analysis