In the quest to make vehicles more energy-efficient, researchers are turning to an unexpected source: the vibrations that typically go to waste in a car’s suspension system. A recent study published in *Academia Materials Science* (which translates to *Academia Materials Science* in English) proposes a novel approach to harness this otherwise lost energy, potentially revolutionizing the energy sector and vehicle design.
At the heart of this research is Lauro Cesar Nicolazzi, a professor at the Department of Mechanical Engineering, Federal University of Santa Catarina, Brazil. Nicolazzi and his team have developed a sophisticated substructure modeling technique that couples two dynamic models: a classic 7-DOF full-car model and a more detailed 14-DOF double wishbone suspension model. This approach aims to provide more accurate predictions for energy harvesting from vehicle suspensions.
The key innovation lies in the introduction of a piezoelectric material disk between the frame and the spring shock absorber assembly of each wheel. “By integrating piezoelectric materials into the suspension system, we can convert the mechanical energy from vibrations into electrical energy,” Nicolazzi explains. This not only reduces energy waste but also contributes to the vehicle’s power supply, making it a win-win for both the environment and the energy sector.
The study tested various piezoelectric materials, including ceramic, polymer, and composite types. While ceramic materials showed promising energy harvesting potential, the composite piezoelectric material stood out due to its superior mechanical strength. “The composite material’s durability makes it a more practical choice for real-world applications,” Nicolazzi notes.
The implications of this research are far-reaching. For the energy sector, this technology could pave the way for more sustainable and efficient energy solutions. For the automotive industry, it offers a new avenue to enhance vehicle performance and reduce environmental impact. As Nicolazzi puts it, “This is just the beginning. The potential for energy harvesting in vehicle suspensions is immense, and we are excited to explore further developments in this field.”
The study, published in *Academia Materials Science*, marks a significant step forward in the integration of energy harvesting technologies into everyday vehicles. As researchers continue to refine these techniques, we can expect to see more innovative solutions that bridge the gap between sustainability and practicality. This research not only highlights the importance of interdisciplinary collaboration but also underscores the need for continuous innovation in the pursuit of a greener future.