WANG Hui, WU Jun-feng, LI Yin etc. Micro/Nano Technology and Fine Mechanics Design of reaction flywheel systems for small satellites[J]. Editorial Office of Optics and Precision Engineering, 2014,22(2): 331-337
WANG Hui, WU Jun-feng, LI Yin etc. Micro/Nano Technology and Fine Mechanics Design of reaction flywheel systems for small satellites[J]. Editorial Office of Optics and Precision Engineering, 2014,22(2): 331-337 DOI: 10.3788/OPE.20142202.0331.
Micro/Nano Technology and Fine Mechanics Design of reaction flywheel systems for small satellites
According to the requirement of reaction flywheels in small satellites for small sizes
the design method for an armature size was proposed when the electrical motor was at a minimal volume
and a stator coreless reaction flywheel system was designed based on the method. To avoid the magnetic saturation
the multidisciplinary design optimization method was applied to the design of flywheel rotor and magnetic field of the motor. A optimization strategy combined with Exterior Penalty(EP) function and Sequential Quadratic Programming(SQP) was proposed to optimize the system as well. With optimization
the minimum mass and maximum air-gap magnetic flux density of the rotor were chosen as the objects
respectively
and the maximum equivalent stress
resonance frequency
the polar moment of inertia and the magnetic saturation were taken as constrains. Then
the software iSIGHT with finite element analysis (ANSYS) were integrated to achieve the optimization. Finally
a flywheel prototype was designed based on the optimal results. The results indicate that the total mass of the flywheel rotor has been decreased from 0.73 kg to 0.67 kg (reduced by 8.22%) and the flux density has been increased from 0.376 T to 0.401 T (increased by 6.65%). The optimal design method can improve the rationality of flywheel design
and will promote the progress of the miniaturization investigation of flywheel systems.
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references
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