Mechanical Models in Design: Kinematics and Dynamics

This lecture introduces different types of models in mechanical design, including static, kinematic, and dynamic models. It covers topics such as inertia forces, deformable elements, harmonic excitation, and the reduction of complex systems. The instructor explains the limitations of the kinematic model, the influence of flexibility on structural efforts, and the importance of energy conservation in reducing movement. The lecture also delves into the analysis of oscillations, parametric vibrations, and the amplification factor in dynamic systems. Additionally, it discusses the transmission of forces, dynamic errors, and the behavior of non-uniform mechanisms. Practical design considerations, such as balancing rotors, critical speeds, and the reduction of effort transmission, are also addressed.