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On the Dynamics of Flow Structure Development in an Excited Plane Jet
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Coherent structure dynamics in the developing region of a plane jet under acoustic excitation is studied experimentally by means of hot-wire measurements and smoke-wire flow visualization. The ...
Application of a Single-Antenna GPS–Based Attitude Estimation on the Stability Control of a Small Unmanned Aerial Vehicle
Publisher: American Society of Civil Engineers
Abstract: Attitude estimation is an important issue in the autonomous flight of an unmanned aerial vehicle (UAV) system. However, for a micro-sized UAV with a wingspan of less than 2 m, a high performance Attitude and Heading Reference ...
On Stability and Stabilization of Mechanical Structures Under Nonlinear Time-Varying Perturbations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Asymptotic stability and bounded-input, bounded-output (BIBO) stability of a class of underdamped mechanical structures with nonlinear time-varying perturbations are studied. An upper norm-bound of ...
Autonomous Hovering of an Experimental Unmanned Helicopter System with Proportional-Integral Sliding Mode Control
Publisher: American Society of Civil Engineers
Abstract: This paper presents a method of approaching the attitude control of an autonomously hovering unmanned helicopter system. The proportional-integral sliding mode controller (PISMC) features a combination of the conventional ...