Modelling of Motion of the Slider-Crank Wind Car Taking into Account Viscous Friction in a Slider
Up-wind motion of the wind powered car is studied. The car is equipped by a slider-crank-type wind turbine which transmits energy of the wind flow into the energy of the up-wind motion of the car. The wing is rigidly joined to the link of the slider-crank mechanism. The slider moves along the vertical guide rail. The shaft of the crank is parallel to the shaft of wheels. These two shafts are connected by the reduction gear. It is supposed that there is no slipping between wheels of the car and the ground. Dynamical model of the car takes into account viscous friction between elements of the mechanism. A stationary up-wind motion of the car corresponds to a periodic solution of dynamical equations. Searching for periodic solutions is carried out using the method of generating systems. Average speed of the car at stationary up-wind motion is estimated. Dependence of this speed upon the parameters of the model (gear ratio, viscous friction in the slider, coefficient of the aerodynamic drag force acting upon the frame of the car) is described.
KeywordsSlider-Crank Mechanism Wind Powered Car Friction Periodic Regime Up-wind Motion
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