Active Vibration Absorber with Time Delay Acceleration Feedback — Lesson 2

This lesson covers the concept of non-linear vibration and its applications. It delves into the vibration of continuous systems, the differences between vibration isolations, and the types of vibration absorbers - passive, active, and hybrid. The lesson also discusses the use of piezoelectric stack actuators in vibration absorbers and the analysis of active non-linear vibration absorbers by displacement and acceleration feedback. The lesson further explains the concept of harmonic and parametric excitation and the application of Laplace transform in deriving the equation of motion for the system.

Video Highlights

03:25 - Mathematical modeling for active vibration absorbers
07:35 - Acceleration feedback of the primary system
14:14 - Primary resonance
24:00 - Conclusions
44:24 - Results and discussion

Key Takeaways

- Non-linear vibration has various applications in engineering and physics.
- Vibration absorbers can be categorized into passive, active, and hybrid types.
- Piezoelectric stack actuators are used in vibration absorbers.
- Harmonic and parametric excitation are two types of forces applied to a system.
- The Laplace transform is used to derive the equation of motion for a system.