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(searched for: doi:10.37868/sei.v4i1.id155)
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Published: 8 June 2022
by MDPI
Mathematics, Volume 10; https://doi.org/10.3390/math10121979

Abstract:
This paper proposes a general design method for cams based on the kinematics and dynamics of a mechanical system. According to the actuator’s trajectory, the cam profile is generated in reverse based on the kinematic model of the system. Firstly, the cam design’s optimising problem is converted into the execution trajectory’s optimisation to obtain the optimum operation trajectory according to the actuator’s requirements. Secondly, the relationship between the cam profile and the actuation trajectory is modelled based on the kinematics and dynamics of the mechanical system. Then, applying the cubic spline interpolation method, the cam profile is generated, and the error compensation methods are illustrated through numerical analysis. Finally, the validity of the presented design method is verified through experiments, which demonstrate the reliability of this method.
International Journal of Engineering Sciences & Research Technology, Volume 11, pp 1-8; https://doi.org/10.29121/ijesrt.v11.i3.2022.1

Abstract:
Incubators are increasingly used in Burkina Faso in the field of poultry farming in rural and urban areas. They allow poultry farmers to hatch many eggs while minimizing losses. However, the incubators are powered by the electrical network or the photovoltaic system which converts electrical energy (whether alternative or continuous) into thermal energy for heating the eggs. In order to compensate for this conversion of electrical energy into thermal energy, we decided to design a flat panel solar incubator operating using solar radiation since our country, Burkina Faso, has good sunshine during the year. Both physical parameters such as temperature and humidity are very important in egg hatching. This work presents the model of the solar incubator with flat plate collector and the temperature profile within it thanks to the resolution of the heat transfer equations with the COMSOL software.
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