Passive and Active Vibration Absorber with Feedback — Lesson 3

This lesson covers the concept of non-linear vibration absorbers, focusing on different types of vibration absorbers such as passive, tuned, active, traditional, and non-traditional. The lesson delves into the application of these absorbers in controlling vibrations in various systems, including two-degree freedom systems and continuous systems. It also discusses the use of smart materials like piezoelectric material in active vibration absorbers. The lesson further explores the role of time delay in displacement, velocity, and acceleration feedback in suppressing vibrations in a single degree of freedom, spring mass, primary system under external harmonic and parametric excitation.

Video Highlights

05:33 - Mathematical modeling
25:00 - Dynamic analysis of an active vibration absorber 
32:28 - Results and discussion
38:55 - Conclusion
42:10 - Mathematical analysis by HBM

Key Takeaways

- Non-linear vibration absorbers are crucial in controlling vibrations in various systems.
- Different types of vibration absorbers include passive, tuned, active, traditional, and non-traditional.
- Smart materials like piezoelectric material can be used in active vibration absorbers.
- Time delay in displacement, velocity, and acceleration feedback plays a significant role in suppressing vibrations.