Aeroelastic Oscillations of Cantilever Beams Reinforced by Carbon Nanotubes Based on a Modified Third-Order Piston Theory by Mehdi Alimoradzadeh, Francesco Tornabene, Rossana Dimitri

“…A modified third-order piston theory is used as an accurate tool to model the supersonic air flow, rather than a first-order piston theory. …”
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Pneumatic Compliant End-effector Using Multi-compensation Integrated Nonlinear Active Disturbance Rejection Control by ZHANG Shuzhong, WU Qianxin, DAI Fuquan, WANG Yabing, ZHANG Gong

“…LuGre model parameters are fitted, and a compensation strategy is developed to offset frictional disturbances during piston movement.Data filtering: A first-order low-pass filter is integrated into the controller to reduce high-frequency noise in the force sensor readings and enhance control accuracy.The control algorithm is implemented on an STM32F103 microcontroller operating at 50 Hz. …”
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Passive Suppression of Panel Flutter Using a Nonlinear Energy Sink by Jian Zhou, Minglong Xu, Wei Xia

“…First-order piston aerodynamic theory is adopted to build the aerodynamic load. …”
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