TECHNOLOGY & PATENTS:
Vibration Control by Confinement (VCC)
Energy Flow Control (EFC)
USA and International Patents
- 14 years of government and commercial projects
- 13 U.S. and international patents
- Expertise in noise/vibration/acoustics/shock analysis and control
- Capabilities in modeling simulation and analysis
- Capabilities in testing and evaluation
- Capabilites in field data collection and analysis
- Ability to secure government funds for R&D projects ($2.5 billion funding pool)
- Ability to secure sole source phase 3 awards
Publications
Abstract
Title: Performance Comparison Between Vibration Control by Confinement and Conventional Control Techniques
Author: Daryoush Allaei (QRDC, Inc.)
This paper presents some of the key results obtained in an investigation comparing the performance of the Vibration Control by Confinement technique with conventional vibration control methods using isolators, absorbers, and layer damping in their passive and/or active form. All four vibration suppression methods are applied to a system comprised of an elastic component resting on an elastic beam-type supporting structure. The finite element method is employed to model the system and generate the numerical results presented in this article. The system is subjected to a single harmonic disturbance applied directly to the beam. Kinematics variables are determined at the component and its interface with the supporting structure. Based on the results obtained via the FEM model, it is shown that the Vibration Control by Confinement technique outperforms, by a significant performance level, the conventional suppression methods studied in this project. Furthermore, it is concluded that the Vibration Control by Confinement technique is an effective and viable approach that not only has better performance, but has fewer limitations than current techniques. Furthermore, additional ramifications of the Vibration Control by Confinement approach as they apply to active vibration control systems are discussed.
Abstract
Title: Performance Comparison Between Vibration Control by Confinement and Conventional Control Techniques
Author: Daryoush Allaei (QRDC, Inc.)
This paper presents some of the key results obtained in an investigation comparing the performance of the Vibration Control by Confinement technique with conventional vibration control methods using isolators, absorbers, and layer damping in their passive and/or active form. All four vibration suppression methods are applied to a system comprised of an elastic component resting on an elastic beam-type supporting structure. The finite element method is employed to model the system and generate the numerical results presented in this article. The system is subjected to a single harmonic disturbance applied directly to the beam. Kinematics variables are determined at the component and its interface with the supporting structure. Based on the results obtained via the FEM model, it is shown that the Vibration Control by Confinement technique outperforms, by a significant performance level, the conventional suppression methods studied in this project. Furthermore, it is concluded that the Vibration Control by Confinement technique is an effective and viable approach that not only has better performance, but has fewer limitations than current techniques. Furthermore, additional ramifications of the Vibration Control by Confinement approach as they apply to active vibration control systems are discussed.
125 Columbia Court, Suite 6, Chaska, MN 55318
phone 952.556.5205 | fax 952.556.5206
email arash@qrdc.com
phone 952.556.5205 | fax 952.556.5206
email arash@qrdc.com