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RISRobust Constrained Trajectory Tracking Control for Quadrotor Unmanned Aerial Vehicle Based on Disturbance Observers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a trajectory tracking control scheme for a quadrotor unmanned aerial vehicle (UAV) under unknown external disturbance and input saturation is developed. This scheme includes the position control system and ...
Dynamics of Cubic and Vibro Impact Nonlinear Energy Sink: Analytical, Numerical, and Experimental Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper is devoted to study and compare dynamics of primary linear oscillator (LO) coupled to cubic and vibroimpact (VI) nonlinear energy sink (NES) under transient and periodic forcing. The classic analytical procedure ...
Improving the Heat Transfer Performance of the Tower Molten Salt Solar Receiver With the Novel Folded Flow Tubes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The molten salt has been widely used in concentrated solar power generation as an effective high-temperature heat transfer and heat storage working fluid. However, due to the concentrating characteristic of the tower ...
A Forward Sensitivity Analysis and Design of U-Shaped Bellows Considering the Radial Compensation Capability Under Internal Pressure
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Bellows serve as integral component within a piping system, which withstand radial displacement loads and internal pressure loads. This study investigates the sensitivity analysis of structure design parameters, such as ...
The Response of the Southern Hemisphere Middle Atmosphere to the Madden–Julian Oscillation during Austral Winter Using the Specified-Dynamics Whole Atmosphere Community Climate Model
Publisher: American Meteorological Society
Abstract: AbstractUsing the specified-dynamics (SD) Whole Atmosphere Community Climate Model (SD-WACCM), the effects of the Madden?Julian oscillation (MJO) on the midwinter stratosphere and mesosphere in the Southern Hemisphere (SH) ...
Study on the Salt Scaling Resistance of Pavement Cement Concrete
Publisher: American Society of Civil Engineers
Abstract: The single-side salt-freeze test was used to optimize the concrete mix design for improving the resistance of concrete to salt scaling. The results show that the resistance of concrete to salt scaling improves with decreasing ...
Formation Tracking Control of Second-Order Multi-Agent Systems With Time-Varying Delay
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper considers the problem on formation tracking control of second-order multi-agent systems (MASs) with communication time-varying delay. Sufficient conditions on the directed interaction topology and existence of ...
Semicustomized Design Framework of Container Accommodation for Migrant Construction Workers
Publisher: American Society of Civil Engineers
Abstract: Millions of migrant construction workers (MCWs) worldwide make significant economic contributions to their host countries or regions but often suffer poor housing conditions. It is therefore important to explore new ways ...
Experiment-Based Motion Reconstruction and Restitution Coefficient Estimation of a Vibro-Impact System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The objective of this paper is to demonstrate the motion reconstruction and the parameter estimation of a vibro-impact (VI) system from limited experimental information. Based on the measured displacement and acceleration ...
Multiscale Feature Fusion Convolutional Neural Network for Surface Damage Detection in Retired Steel Shafts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The detection of surface damage is an important part of the process before remanufacturing a retired steel shaft (RSS). Traditional damage detection is mainly done manually, which is time-consuming and error-prone. In ...