نتایج جستجو برای: back stepping design

تعداد نتایج: 1106973  

2005
G. M. Dimirovski W.-L. Li A. Serafimovski Y.-W. Jing A. T. Dinibütün

Graduate studies in fields of Engineering typically include advanced control theory. In turn, these courses enhance both academic and applied research, hence contributing to combined knowledge and technology transfer, in particular if supported by industry as well. This paper reports on such fruitful experiences at our universities through the math-analytical back-stepping and state-feedback co...

2012
Shixing Wang Bin Xu Fuchun Sun Yifu Jiang

Abstract: In this study, the altitude control is analyzed for the longitudinal dynamics of a generic Hypersonic Flight Vehicle (HFV). By transforming altitude command into the tracking of flight path angle with fast dynamics, the system design is focusing on the control of the attitude subsystem. The virtual control is designed with nominal feedback and Neural Network (NN) approximation via bac...

2010
M. Ivanescu D. Cojocaru N. Bizdoaca M. Florescu N. Popescu D. Popescu S. Dumitru Mircea Ivanescu Dorian Cojocaru Nicu Bizdoaca Mihaela Florescu Sorin Dumitru Nirvana Popescu Decebal Popescu

Abstract: The control problem of a class of hyper-redundant arms with continuum elements, with boundary measuring and control is discussed. First, the dynamic model of the continuum arm is presented. The measuring systems are based on the film sensors that are placed at the terminal sub-regions of the arm. The observers are proposed in order to reconstruct the full state of the arm. A back-step...

Journal: :Journal of the Japan Society for Precision Engineering 1993

Journal: :Journal of the American Society of Nephrology 2006

Journal: :Journal of neurophysiology 2011
Stacie A Chvatal Gelsy Torres-Oviedo Seyed A Safavynia Lena H Ting

We investigated muscle activity, ground reaction forces, and center of mass (CoM) acceleration in two different postural behaviors for standing balance control in humans to determine whether common neural mechanisms are used in different postural tasks. We compared nonstepping responses, where the base of support is stationary and balance is recovered by returning CoM back to its initial positi...

2009
Nicholas Kottenstette

This paper recalls a non-linear constructive method, based on controlling cascades of conic-systems as it applies to the control of quad-rotor aircraft. Such a method relied on the physical model of the system to construct highperformance, modest sampling period (Ts = .02 s) and lowcomplexity digital-controllers. The control of fixed-wing aircraft, however is not nearly a straight forward task ...

Journal: :Journal of Orthopaedics, Trauma and Rehabilitation 2023

Background: Most biomechanical studies in populations with low back pain have examined level gait or stationary tasks. This study investigates step negotiation a subgroup of individuals pain. Methods: Surface electromyography and kinetic data were collected 22 subjects. Results: Vertical ground reaction force rise-time was slower participants when leading the left leg they had delayed muscle on...

Journal: :Physical therapy 2012
T George Hornby Catherine R Kinnaird Carey L Holleran Miriam R Rafferty Kelly S Rodriguez Julie B Cain

BACKGROUND Robotic-assisted locomotor training has demonstrated some efficacy in individuals with neurological injury and is slowly gaining clinical acceptance. Both exoskeletal devices, which control individual joint movements, and elliptical devices, which control endpoint trajectories, have been utilized with specific patient populations and are available commercially. No studies have direct...

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