Cylindrical Motion Systems — Lesson 2

This lesson covers the concept of inductance in electromechanical systems, focusing on linear motion systems and rotational systems. It explains how inductance is used to derive an expression for the force that is excited in these systems. The lesson also discusses the importance of system geometry in determining inductance and the role of inductance in generating electromagnetic torque. It provides an example of a solenoid switch to illustrate these concepts. The lesson also covers the analysis of spring plunger system using Finite Element Method (FEM) simulations.

Video Highlights

00:11 - Introduction
00:25 - Explanation of a singly excited linear motion system
04:06 - Explanation of how the developed force depends on the rate at which inductance changes with respect to x
06:00 - Concept in solenoid valves and switches
10:09 - Analysis of the spring plunger system using Finite Element Method (FEM) and discussion on the simulation results
13:06 - Explanation of how the system behaves with the increase in time
21:02 - Introduction to rotational systems and how they differ from linear systems
33:10 - Discussion on the equations for the applied voltage and total power input in a rotational system

Key Takeaways

- Inductance plays a crucial role in electromechanical systems, influencing the force that is excited in these systems.
- The geometry of the system significantly impacts the inductance. In a magnetically linear system, inductance is a function of the geometry alone.
- In rotational systems, a change in inductance due to rotor position can generate electromagnetic torque.
- FEM simulations can be used to analyze and understand the behavior of electromechanical systems, including axis symmetric systems.