| 摘要 |
<p>PCT No. PCT/GB94/01458 Sec. 371 Date Mar. 18, 1996 Sec. 102(e) Date Mar. 18, 1996 PCT Filed Jul. 6, 1994 PCT Pub. No. WO95/02269 PCT Pub. Date Jan. 19, 1995A rotor (10) comprising a cylindrical structure (30, 31) including a portion made from a fibre reinforced composite (38, 39) wherein magnetic filler within the matrix (44) of the composite and wherein the loading of the magnetic filler material varies through the matrix whereby the average mass per unit volume of the structure (10) decreases with distance radially from the axis of the structure (10). As a result, strain matching across the rotor can be achieved even when the rotor is spinning at high speed, such as when used in a flywheel energy storage and conversion apparatus.</p> |
