High Speed Carbon Fiber Composite Rotor's Mechanics Character Research And Energy-Storage Density Optimization

The technology of using carbon fiber composite flywheel to store energy is a new technology highly developed recently in the world. In this article, the following technology of the carbon fiber composite flywheel in the Integrated Energy-Storage/Attitude-Control System are analyzed and the valuable achievements are achieved above the foundation of consulting a large quantity of literatures and investigation : 1.Different technology method for carbon fiber composite flywheel are designed, aimed at the character of carbon fiber composite material and manufacture 2Analyzes the stress of carbon fiber composite flywheels made by different technology method, hoop-winding method, symmetric ortho layers pressing method, multi-layer winding method and interference joining method, under high rotate speed, builds their static model; and simulates their technology and shape parameter's affecting their stress level with I-DEAS F.E.M. analysis software; 3. Designs the optimum method of improving rotor's energy-storage ability, and optimizes the different shape energy-storage density of carbon fiber composite flywheels made by different technology method , and achieves their superior and inferior capability on the energy-storage.4. Puts forward the optimum design thought of the flywheel shaft system, designs the optimum method to match the mass' and value request by choosing the rod's shape and material, designs the concrete optimum method, and optimizes the mass and price request of the flywheel shaft system using the method;5. The flywheel's and the shaft's dynamics equation under high speed rotation are built, and F.E.M. is applied to this question, at last, the resonance frequency, modal shape and reaction to theeccentricity stimulus of a flywheel system is analyzed really using the I-DEAS F.E.M. analysis software. The analysis show: The gyroscope effect to the flywheel rotor's and the shaft's vibration character under high rotate speed should be considered. At this time, the system's normal frequency is the function of rotate speed; The amplitude passing through the resonance field can be lowered obviously by improving the effective damping of the electro-magnetic bearing.