Introduction

This project was carried out by three university students who were given the freedom to choose a model to design. We decided to recreate and analyze a mountain bike from design to functionality. To achieve this, we used SolidWorks to model the individual components, assemble them, and ensure that the entire system works correctly. Additionally, we conducted a deeper analysis, including an aerodynamic and structural study, allowing us to better understand how a bicycle behaves under different conditions.

We chose a mountain bike as our subject because it is an interesting mechanical system that combines moving parts, such as the transmission system, with a robust yet lightweight frame designed to handle rough terrains. One of our team members owns a mountain bike with a certain level of complexity, which served as the primary reference for making our 3D model as realistic as possible.

3D Modeling process

Each component of the bicycle was modeled separately, ensuring that the real-world dimensions were accurately represented so that everything fit together in the final assembly. After modeling the parts, we proceeded to assemble them in SolidWorks, verifying the kinematics to ensure that all components moved correctly and in coordination.

Once the assembly was completed, we generated technical drawings for each individual part and for the entire bicycle, following standard drafting norms. These drawings included necessary tolerances and surface finishes for potential manufacturing.

Structural and Aerodynamic Analysis

Beyond just modeling, we performed a structural analysis to evaluate how the bicycle responds to external forces. This helped us understand the stress distribution and deformation behavior of key components such as the frame and suspension system. Additionally, we conducted an aerodynamic analysis to study how the bicycle interacts with moving air, providing insights into potential optimizations for efficiency and performance.

Conclusions

This project provided a comprehensive understanding of the design and functionality of a mountain bike. By integrating SolidWorks modeling with structural and aerodynamic analysis, we successfully recreated a realistic and functional digital prototype. Future improvements could focus on refining material selection and optimizing the frame geometry for better performance in different riding conditions.