نتایج جستجو برای: insertion torque

تعداد نتایج: 83716  

Journal: :European journal of orthodontics 2013
Thiago Martins Meira Orlando Motohiro Tanaka Maiara Medeiros Ronsani Ivan Toshio Maruo Odilon Guariza-Filho Elisa Souza Camargo Hiroshi Maruo

This study aimed to evaluate biomechanical behaviour of inclined orthodontic mini-implants by analyzing its insertion torque (IT), axial pull-out strength (APS), and cortical bone thickness in contact with mini-implant (CBTC). A total of 102 mini-implants were inserted at 90 degree, 60 degree, and 45 degree to the surface of synthetic bone. Peak IT was measured, and the mini-implants were align...

Journal: :the modares journal of electrical engineering 2016
a. moazami a. kiyoumarsi b. mirzaeian m. niromand s. m. madani madani

the direct torque control (dtc) of interior permanent magnet synchronous motor (ipmsm) offers simple structure and fast torque response. the conventional switching table-based dtc (st-dtc) presents some disadvantages like high torque and flux ripple and also variable switching frequency. this paper investigates the improved st-dtc strategies to reduce both torque and flux ripple in dtc of ipmsm...

Journal: :journal of mechanical research and application 2011
hossein nazary nafise aalipour mansour alizadeh

since knowledge on hydrodynamic torque of a butterfly valve is very important for butterfly valve design, its hydrodynamic torque is investigated in this paper. in reality, the investigation of the loss coefficient and torque from some experiments will take a long time and a lot of money. this paper presents a statistical study of the flow past the butterfly valve in a static analysis using com...

2014
Victoria A. Webster Ronald Leibach Alexander Jacob Hunt Richard J. Bachmann Roger D. Quinn

TCERA (Tunable Compliance Energy Return Actuator) is a robotic actuator inspired by properties and behavior of the human knee joint, in that it utilizes antagonistic contraction to vary torsional stiffness and joint angle. The actuator is an electrically activated artificial muscle which uses two constant air-mass pneumatic springs configured antagonistically about the knee joint. The positions...

Journal: :Journal of Intelligent and Robotic Systems 1996
Enrique Cervera Angel P. Del Pobil Edward Marta Miguel A. Serna

This paper presents a new approach to error detection during motion in contact under uncertainty for robotic manufacturing tasks. In this approach, artificial neural networks are used for perception-based learning. The six force-and-torque signals from the wrist sensor of a robot arm are fed into the network. A self-organizing map is what learns the different contact states in an unsupervised w...

Journal: :journal of electrical and computer engineering innovations 2016
mostafa ahmadi darmani hooman hooshyar

axial flux permanent magnet (afpm) machines are attractive candidates for electric vehicles (evs) applications due to their axial compact structure, high efficiency, high power and torque density. this paper presents general design characteristics of afpm machines. moreover, torque density of the machine which is selected as main objective function, is enhanced by using genetic algorithm (ga) a...

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