We discuss the propagation of Rayleigh waves at boundary a semi-infinite elastic lattice connected to system gyroscopic spinners. present derivation analytical solution equations governing when is subjected force acting on boundary. show that results are in excellent agreement with outcomes independent finite element simulations. In addition, we investigate influence load direction, frequency a...

This article discusses the coupled microvibration analysis of a cantilever configured Reaction Wheel Assembly with soft-suspension system. A RWA–seismic mass coupled microvibration measurement system is presented and its model validated against test results. The importance of the RWA driving point accelerances in coupled microvibration designed to measure the driving point accelerances in both ...

This paper deals with the modelling, simulation-based controller design and path planning of a four rotor helicopter known as a quadrotor. All the drags, aerodynamic, coriolis and gyroscopic effect are neglected. A Newton-Euler formulation is used to derive the mathematical model. A smart self-tuning fuzzy PID controller based on an EKF algorithm is proposed for the attitude and position contro...