The motor control system of unmanned aerial vehicle (UAV) will be affected by the environment during its operation, which has certain nonlinear characteristics. sliding mode variable structure method is proposed in this paper. Through pre design parameters and modes, influence interference, parameter changes, temperature other factors on reduced, power factor, precision working efficiency are i...

The composition and principle of an electrohydraulic servo oil film stiffness control system of hydrostatic center frame will be introduced, and the system model identification as well as the verification will be carried out based on semi-physical simulation environment of Real-time Workshop (RTW) and system identification toolbox in MATLAB. A control strategy of fuzzy sliding model variable st...

In this paper, a procedure has been presented to develop fragility curves of structures equipped with optimal variable damping or stiffness semi-active tuned mass dampers (SATMDs). To determine proper variable damping or stiffness of semi-active devices in each time step, instantaneous optimal control algorithm with clipped control concept has been used. Optimal SATMDs have been designed based ...

Organization theory is a discipline on the boundary between economics of organizations, sociology of organizations, management and political science. She is interested in organizations, both commercial and non-commercial, in all their diversity (company, hospital, union, organization, administration, conventions). It analyzes their functioning, structure and development for the purpose of...

An improved spccd estimator using paraiiicter uncertainty cancellation and its application to an indirect tield-oriented induction motor drive arc presented. First, the speed estimation errors of a V-l model-based adaptive speed observer due to parameter variations are analysed. Then, accordingly, a novel compensation scheme is dcvclopcd to cancel the effects of parameter variations on the esti...

An important consideration in control issues is control of nonlinear systems. Sliding control is among those nonlinear controllers that can control the system desirably in the presence of unstructured uncertainties of carelessness in specifying parameters of the system. In sliding control, also called Variable Structure Control, the main objectives of the controller &#10are achieved by introduc...

An important consideration in control issues is control of nonlinear systems. Sliding control is among those nonlinear controllers that can control the system desirably in the presence of unstructured uncertainties of carelessness in specifying parameters of the system. In sliding control, also called Variable Structure Control, the main objectives of the controller are achieved by introducin...