This technology combines noise and vibration technology, state-of-the-art materials and smart electronic devices. The effect of noise cancelling or vibration damping is achieved through an electronically coupled piezoelectric material, which dissipates the vibration energy of a structure. This is an alternative technique where the performance of passive absorbing materials can no longer cope with an increasing system complexity. It is a simple yet effective and promising technique to cancel unwanted noise and vibration in any structures, such as rotating machinery, truss members and composite panels, which can be applied in several industrial sectors.
Technology Features, Specifications and Advantages
Tailored Acoustic Attenuation
By using advanced methods of structural dynamics, numerical optimisation, and signal processing, this technology can be tailored to any specific application. In contrast to passive absorbing materials, the noise cancelling or vibration damping can be effective in any frequency band and a response reduction of more than 20 dB can be achieved.
Cost-effective and Low Maintenance
Thanks to the smart electronic devices, this technology has a low purchase cost and requires low power during operation, in contrast to traditional active noise control. The long lifecycle of piezoelectric materials also assures a durable and low maintenance operation.
This technology can be integrated into any compact system at any stage of the design. Noise and vibration can be significantly attenuated without cumbersome electronics, and without excessive mass addition.
Noise and vibration cancelling, using piezoelectric materials and smart electronics, have a great potential in areas where passive absorbing materials fail and where low power and high precision are required.
The main industrial sectors that can benefit from this technology are:
- Precision electronics
- Medical technology
- Urban solutions and research centers
Potential applications include (but not limited to):
- Vibration control in automotive components
- Harmonics reduction in turbine blades
- Noise reduction in a squealing brake disc
People are exposed to excessive noise or vibration in industrial environments and in urban areas, which can potentially cause safety issues or even health hazards. This technology is a compact and tailored solution to cancel unwanted noise and vibration directly at the source. Other than increasing comfort and mitigating health hazards on people, it can increase the durability, precision and reduce wear of machinery. In contrast to alternative solutions in the market, our technology requires low power and can be effective in any frequency band.