Magnetostrictive Vibration Generation System Patent
Document information
| Author | Alison B. Flatau |
| School | Iowa State University |
| Major | Aerospace Engineering |
| Year of publication | 1996 |
| Place | Ames |
| Document type | patent |
| Language | English |
| Number of pages | 35 |
| Format | |
| Size | 1.82 MB |
- Magnetostrictive Actuators
- Vibration Generation
- Aerospace Engineering
Summary
I. Introduction
The Magnetostrictive Vibration Generation System patent presents a novel approach to vibration generation using a Terfenol-D rod actuator. This system integrates a mass coupled to both ends of the rod, enhancing its functionality in various applications. The actuator is strategically mounted within a cylindrical coil, which is encased in a permanent magnet and housing. This configuration allows for efficient vibration generation through an electrical drive system that sends a predetermined excitation signal to the coil. The significance of this design lies in its ability to produce controlled vibrations, which can be utilized in fields such as aerospace and mechanical engineering. The patent emphasizes the importance of the magnetic field generated by the coil, which directly influences the rod's vibrations, making it a critical component of the system.
1.1 Background
The development of magnetostrictive materials has revolutionized the field of vibration generation. The Terfenol-D material, known for its high magnetostrictive properties, serves as the core of this invention. The ability to convert magnetic energy into mechanical vibrations opens new avenues for applications in sensors and actuators. The patent outlines various embodiments of the system, including an implantable shaker designed for testing tissue response to vibrations. This innovative approach not only enhances the understanding of material behavior under stress but also provides a platform for future research in biomedical applications.
II. System Design and Functionality
The design of the Magnetostrictive Vibration Generation System is characterized by its intricate assembly of components. The Terfenol-D rod actuator is coupled with a mass through a series of spring mechanisms, ensuring stability and precision in vibration output. The actuator's placement within a cylindrical coil and permanent magnet is crucial for maximizing the magnetic field effects. The electrical drive system plays a pivotal role, delivering excitation signals that dictate the vibration frequency and amplitude. This section of the patent highlights the engineering challenges addressed during the design process, including the need for a leak-proof seal in the implantable shaker. Such innovations demonstrate the practical applications of the system in real-world scenarios, particularly in environments requiring precise vibration control.
2.1 Practical Applications
The practical applications of the Magnetostrictive Vibration Generation System are vast. In aerospace engineering, the ability to generate controlled vibrations can be utilized for testing materials and components under simulated operational conditions. Additionally, the implantable shaker design opens new possibilities in medical research, allowing for the study of tissue responses to vibrations. The patent underscores the versatility of the system, suggesting its potential use in various industries, including automotive and consumer electronics. By providing a reliable method for vibration generation, this invention contributes significantly to advancements in engineering and technology.
III. Conclusion
The Magnetostrictive Vibration Generation System patent represents a significant advancement in vibration technology. By leveraging the unique properties of Terfenol-D, the system offers a robust solution for generating precise vibrations across multiple applications. The integration of an electrical drive system with a carefully designed actuator and mass configuration enhances the system's effectiveness. This patent not only contributes to the existing body of knowledge in aerospace and mechanical engineering but also paves the way for future innovations in vibration control technologies. The potential for real-world applications, particularly in biomedical fields, highlights the importance of continued research and development in this area.
3.1 Future Directions
Future research may focus on optimizing the Terfenol-D rod actuator for enhanced performance and exploring new materials that could further improve vibration generation efficiency. Additionally, the integration of smart technologies could lead to the development of adaptive systems capable of responding to real-time feedback. The ongoing exploration of magnetostrictive materials will likely yield new insights and applications, reinforcing the relevance of this patent in the evolving landscape of engineering and technology.
Document reference
- Design of Lanthanide Magnetostrictive Sonar Projectors (Clayssen et al.)
- Application Manual for the Design of Etrema Terfenol-D Magnetostrictive Transducers (Butler, J. L.)
- Attenuation and Transformation of Vibration Through Active Control of Magnetostrictive Terfenol (Hiller, M. W., Bryant, M. D., and Umegaki, J.)
- Development and Characterization of Terfenol-D for Use in Sensors and Actuators (Jiles, D. C.)
- Directional solidification and Heat Treatment of Terfenol-D Magnetorestrictive Materials (Verhoeven, J. D., Gibbons, E. D., McMasters, O. D.)