Automotive
Mechanical analysis of composite leaf springs made by 4D printing method
4DPC composite leaf springs curl from a flat layup into a curved beam, and residual stresses at the 90° layer surface reduce tensile loading enough to improve fatigue resistance.
Study on Acoustic Metamaterial Unit Cells: Acoustic Absorption Characteristics of Novel Tortuously Perforated Helmholtz Resonator with Consideration of Elongated Acoustic Propagation Paths
A perforated, tortuous Helmholtz-resonator unit cell is modeled and optimized to extend acoustic path length and improve low-frequency broadband sound absorption for duct mufflers.
Duct Metamaterial Muffler with Composite Acoustic Porous Media: Acoustic Optimization via Periodic Arrangement, Particle Swarm Optimization and Experimental Validation
A composite acoustic porous duct metamaterial muffler with periodic tortuous channels and optimized porous layers achieves improved broadband transmission loss validated by experiments.
Enhancing Shape Recovery and Mechanical Properties of Bisphenol-A-Epoxy-Based Shape Memory Polymer Composites (SMPCs) Using Amine Curing Agent Blends
Blending Bisphenol-A epoxy SMP with amine curing agents and adding carbon fillers improves curing/mechanics and yields faster, stronger shape recovery, with best results at 3 wt% filler.
Overcoming dead zones in ultrasonic sensors with acoustic metamaterial
Helmholtz resonator-based acoustic metamaterials reduce ultrasonic group velocity near resonance, improving time resolution and enabling more accurate distance sensing within the sensor dead zone.
Performance evaluation of a Nickel-Titanium shape memory alloy-based thermostat valve
This study presents a Nickel-Titanium shape memory alloy thermostat valve that significantly improves thermal response and efficiency in automotive cooling systems.