The effects of geometric scaling on the static and dynamic behavior of a multi-rim hybrid press-fitted composite flywheel rotor are investigated and applied to its design procedure. It is verified that the stresses among the scaled multi-rim hybrid rotors remain the same as long as press-fit interferences are linearly scaled, curing temperature remains unchanged, and the rotational speed is inversely proportional. With the linearly scaled supporting stiffness of the scaled rotor and shaft, a relationship between inversely scaled critical speeds and rotational speeds remains unchanged. Double rim rotors of 5 kWh and 100 kWh energy storage are designed by scaling an optimized 0.5 kWh multi-rim rotor. Then, the rotors of 5 kWh were manufactured by wet-winding E-glass and T-700 fibers with a low-temperature cured epoxy system.
Genta, G. (1985). Kinetic Energy Storage, Butterworths , London.
2.
Christopher, D.A. and Beach, R. (1998). Flywheel Technology Development Program for Aerospace Application, IEEE Aerospace & Electronic System Magazine, 13(6): 9-14.
3.
Ha, S.K. , Jeong, H.M. and Cho, Y.S. (1998). Optimum Design of Thick-Walled Composite Rings for an Energy Storage System, Journal of Composite Materials , 32(9): 851-873.
4.
Shintarou, K. (2000). Comprehensive Composite Materials Volume 6-Design and Applications, Elsevier Science Inc, New York.
5.
Herbst, J.D., Manifold, S.M., Murphy, B.T., Price, J.H., Thompson, R.C., Walls, W.A., Alexander, A. and Twigg, K. (1998). Design, Fabrication and Testing of 10 MJ Composite Flywheel Energy Storage Rotors, SAE Aerospace Power Systems Conference, April 21-23, pp. 235-244
6.
Tsai, S.W. and Hahn, H.T. (1980). Introduction to Composite Materials, Technomic Publishing Co. Inc.
7.
Arvin, A.C. and Bakis, C.E. (2006). Optimal Design of Press-fitted Filament Wound Composite Flywheel Rotor, Composite Structures, 72(1): 47-57.
8.
Ha, S.K. , Kim, D.J. and Sung, T.H. (2001). Optimum Design of Multi-ring Composite Flywheel Rotor using a Modified Generalized Plane Strain Assumption , International Journal of Mechanical Sciences, 43: 993-1007.
9.
Ha, S.K. , Jeong, H.M. and Cho , Y.S. (1998). Optimum Design of Thick-Walled Composite Rings for an Energy Storage System , Journal of Composite Materials, 32(9): 851-873.
10.
Ahrens, M., Kucera, L. and Larsonneur, R. (1996). Performance of a Magnetically Suspended Flywheel Energy Storage Device, IEEE Transactions on Control Systems Technology, 4(5): 494-502.
11.
Sivrioglu, S. , Takahata, R. and Nonami, K. (2003). Adaptive Output Backstepping Control of a flywheel Zero-Power AMB System with Parameter Uncertainty, In: Proceedings of IEEE Conference, Hawaii, pp. 3942-3947.
12.
Zhang, C., Wu, P., Tseng, K.J. (2005). FEM Analyses for the Design and Modeling of a Novel Flywheel Energy Storage System assisted by Integrated Magnetic Bearing , IEEE Electric Machines and Drives Conference , pp. 1157-1164.
13.
Zmood, R.B. , Qin, L.J., Kirk , J.A. and Sun , L. (1997). A Magnetic Bearing System Design Methodology and Its Application to a 50 Wh Open Core Composite Flywheel , Energy Conversion Engineering Conference, 4: 2306-2311.
14.
Murphy, B.T. , Ouroua, H., Caprio, M.T. and Herbst, J.D. (2004). Permanent Magnet Bias, Homopolar Magnetic Bearings for a 130kW-hr Composite Flywheel, The Ninth International Symposium on Magnetic Bearings, August 3-6, Kentucky.
15.
Caprio, M.T. , Murphy, B.T. and Herbst, J.D. (2004). Spin Commissioning and Drop Test of a 130 kW-hr Composite Flywheel, The Ninth International Symposium on Magnetic Bearings, August 3-6, Kentucky.
16.
Day, A.C. , Strasik, M., McCrary , K.E., Johnson, P.E., Gabrys, J.W., Schindler, J.R., Hawkins, R.A., Carlson, D.L., Higgins, M.D. and Hull, J.R. (2002). Design and Testing of the HTS Bearing for a 10kWh Flywheel System, Superconductor Science and Technology, 15: 838-841.
17.
Koshizuka, N. (2006). R&D of Superconducting Bearing Technologies for Flywheel Energy Storage Systems, Physica. C, Superconductivity, 445/448: 1103-1108.
18.
Masaie, I., Demachi, K., Matsunaga, K. and Uesaka, M. (2004). Numerical Evaluation of Rotation Speed Degradation of SMB in the 100kWh Superconducting flywheel, Physica. C, Superconductivity, 412/414: 784-788.
19.
Koshizuka, N. , Matsunaga, K., Yamachi , N., Kawaji, A., Hirabayashi, H., Murakami, M., Tomita, M., Une , S., Saito, S. and Isono, M. (2004). Construction of the stator installed in the superconducting magnetic bearing for a 10 kWh flywheel, Physica C, Superconductivity, 412/414: 756-760.
20.
Ha, S.K. and Kim, H.T. (2003). Measurement and Prediction of Process-induced Residual Strains in Thick Wound Composites Rings, Journal of Composite Materials, 37(14): 1223-1237.
