Читать книгу Analysis and Control of Electric Drives - Ned Mohan - Страница 61

1 1. What are the MKS units for force, torque, linear speed, angular speed, speed, and power?

2 2. What is the relationship between force, torque, and power?

3 3. Show that torque is the fundamental variable in controlling speed and position.

4 4. What is the kinetic energy stored in a moving mass and a rotating mass?

5 5. What is the mechanism for torsional resonances?

6 6. What are the various types of coupling mechanisms?

7 7. What is the optimum gear ratio to minimize the torque required from the motor for a given load‐speed profile as a function of time?

8 8. What are the torque‐speed and the power‐speed profiles for various types of loads?