Development and Prospect of Smart Materials and Structures for Aerospace Sensing Systems and Applications

Abstract

The rapid development of the aviation industry has put forward higher and higher requirements for material properties, and the research on smart material structure has also received widespread attention. Smart materials (e.g., piezoelectric materials, shape memory materials, and giant magnetostrictive materials) have unique physical properties and excellent integration properties, and they perform well as sensors or actuators in the aviation industry, providing a solid material foundation for various intelligent applications in the aviation industry. As a popular smart material, piezoelectric materials have a large number of application research in structural health monitoring, energy harvest, vibration and noise control, damage control, and other fields. As a unique material with deformation ability, shape memory materials have their own outstanding performance in the field of shape control, low-shock release, vibration control, and impact absorption. At the same time, as a material to assist other structures, it also has important applications in the fields of sealing connection and structural self-healing. Giant magnetostrictive material is a representative advanced material, which has unique application advantages in guided wave monitoring, vibration control, energy harvest, and other directions. In addition, giant magnetostrictive materials themselves have high-resolution output, and there are many studies in the direction of high-precision actuators. Some smart materials are summarized and discussed in the above application directions, aiming at providing a reference for the initial development of follow-up related research.

The Electro-Mechanical Energy Harvesting Configurations in Different Modes from Machine to Self-Powered Wearable Electronics

“…The tremendous surface area of the MWCNT, which can interact with a substantial amount of polymer chains in the rubber, is the reason for this rise in hysteresis loss. It also leads to more bonds breaking and reforming under cyclic loading, which causes more energy to be lost as heat. , Due to its increased hysteresis loss, the composite is better suited to vibration-dampening and shock absorption applications. , More hysteresis loss occurs during the initial cycle due to the higher amount of bond breakage and reformation. As the number of cycles increases, the rate of bond breakage and reformation is reduced, and an equilibrium occurs in the bond breakage and reformation.…”

“…40,41 Due to its increased hysteresis loss, the composite is better suited to vibration-dampening and shock absorption applications. 42,43 More hysteresis loss occurs during the initial cycle due to the higher amount of bond breakage and reformation. As the number of cycles increases, the rate of bond breakage and reformation is reduced, and an equilibrium occurs in the bond breakage and reformation.…”

Design of an Advanced Distributed Adaptive Control for Multi-SMA Actuators

“…Remark 2: Changing the design parameter in (24), the transient response of the twist angle, angular speed, and temperature states are affected as shown in Figure 4. The tuning of the parameter directly affects the convergence of the actuator states.…”

“…Consider an SMA model wire with a small diameter and a lumped capacitance, where the internal thermal gradient is small and the latent heat effects are negligible. The following lumped-capacitance thermal and Liang-Brinson phenomenological model was found to be adequate for this study [24].…”

Micro robot as the feature of robotic in healthcare approach from design to application: the State of art and challenges

“…They can assist in procedures involving delicate blood vessels, nerves, or other tiny anatomical structures. Moreover, Micro robots can be utilized in tissue engineering approaches to assemble and manipulate cells or bio-engineered constructs, enabling the development of complex and functional tissue [36].…”