How Active Mounting Systems Reduce Vibration

As reported by Nature in the article “Vibration Characteristics of an Active Mounting System for Motion Control of a Plate-Like Structure in Future Mobilities,” the rise of electric and hybrid vehicles (EVs) has introduced challenges in managing vibration and noise, which are particularly pronounced due to the complex signals generated by electric motors. To address these challenges, researchers have been focusing on active engine mounting systems that utilize smart structures, such as piezoelectric stack actuators, to significantly reduce these vibrations. This innovative approach was validated through both simulations and feasibility experiments, showcasing its potential to enhance the comfort and performance of EVs.

The study highlights the use of adaptive control algorithms, such as the normalized least mean square (NLMS) and multi-NLMS, to improve the effectiveness of these active mounting systems. These algorithms, combined with smart materials like magnetorheological fluids and electrorheological fluids, have shown great promise in isolating and reducing vibration in various experimental setups. For example, research has demonstrated that integrating these materials into engine mounts can effectively reduce natural frequency and optimize vibration isolation, leading to a smoother and quieter ride in EVs.

Click here to learn more about Meccom’s products.

Article with all rights reserved, courtesy of nature.com