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In this study, a general U-model based design procedure is expanded to super twisting control of nonlinear polynomial systems, which is named as U-super twisting control in short. A discrete time super twisting reference model is proposed with proper convergence precision and convergence time for nonlinear dynamic plants including non-affine systems. Two bench test examples (non-affine plants which...
Omnidirectional mobile robots have been widely developed due to its high maneuverability in a narrow workspace. However, there are two main shortcomings: vibration and low load bearing capacity, always with the omnidirectional wheel. At present, no a unified method is absent to analyze the performance of omnidirectional wheels systematically. In this paper, a fission model is established to study...
By collecting the human original surface electromyography (sEMG), a dynamic model of human elbow joint was established with sEMG as the input. Firstly, according to the theory of muscle fiber slippage and the characteristics of the internal viscous force of the muscle, the skeletal muscle force model was built about physiological structure and micro mechanical properties. Secondly, by modeling the...
Electronic packaging industry widely uses a dispensing technology to deliver adhesive materials on substrates through a dispensing system. The cured adhesives can encapsulate and connect chips and substrates to provide mechanical, physical and chemical protections. For the high density packaging, a jet dispensing is regarded as the next generation adhesive delivery technology due to its features of...
Partial occlusion is a difficult problem in computer vision since whether the object is changed or occluded is ambiguous, especially when distinguishing it only from the object boundary. In this paper, we proposed a novel idea to solve this problem by taking shape matching as a morphing processing. A mass-spring model is constructed from the point set which is sampled from a template (or reference)...
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