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HIGH EFFICIENCY ELECTROMECHANICAL DRIVE
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| HIGH EFFICIENCY ELECTROMECHANICAL DRIVE
Serikzhanuly Nurbakhyt Doctor of Technical Sciences, Professor of the NJSC “AUPET them. G. Daukeyeva, Corresponding Member. SRA RK Ivanov K.S. Master of physics, senior teacher G.K. Nauryzbayeva al-Farabi KazNU, Almaty, Kazakhstan, n_g.k@mail.ru Last research of adaptive mechanisms [1-4] have shown that the adaptive mechanism in the presence of two degree of freedom should have necessary and sufficient conditions of definability of motion. The necessary condition is a presence of the mobile closed contour. In the new electromechanical drive mobile links form a contour 1-4-5-6-2 which is closed by stator and rotor interacting. The sufficient condition is a presence of the additional constraint imposing restriction on motion of the kinematic chain. Additional constraint in the new drive is carried out by the dynamic converter 3. The centrifugal regulator creates a mobile force support which allows overcoming a variable output moment of resistance. As a result, the new adaptive electromechanical electric drive will gain simple design and will provide definability of motion. Paper is devoted to description of the adaptive electromechanical drive both its force and kinematic analysis with numerical example. 508 Fig. 1. Electromechanical Adaptive Drive The considered electromechanical system has two degrees of freedom. Constraint of angular velocities of stator 1 and rotor 2 defines interconnection of parameters of the electric drive. If the stator is motionless, angular velocities of the stator 1 and a rotor 2 at the motionless stator 1 look like n ) 1 ( 2 ) 1 ( 1 , 0 , where n - nominal angular velocity of the electric motor. If the electric motor together with its support to set in motion with some angular velocity then in this converted motion the angular velocities will accept next values n 2 1 , . The difference of angular velocities defines electric constraint between stator and rotor n 1 2 . (1) The plot of linear speeds of the planetary train (fig. 2) defines mechanical constraint between angular velocities. According to the plot of linear speeds H V V V 2 6 4 . (2) Here H H H r V r r V r r V , 6 2 6 6 6 , 4 1 4 4 4 , H r r r , , 6 4 - radiuses of toothed wheels 4, 6 and carrier H , H , , 6 4 - angular velocities of toothed wheels 4, 6 and carrier H . Here 2 6 1 4 , . After substitution of these values in the equation (2) we will gain mechanical constraint of angular velocities of the stator, a rotor and output link H H H r r r 2 6 2 4 1 . (3) The system of the equations (1) and (3) defines interconnection of angular velocities and provides definability of relative motion of stator and rotor. Solving system (1), (3), we will gain жүктеу/скачать 19,8 Mb. Достарыңызбен бөлісу:
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