| 摘要 |
<p>The present invention provides an apparatus and method for varyi ng a wall skin to alter airflow over the skin. The apparatus has a first and second end-plates, a plurarity of flexible rods (106) are arranged substantially parallel to substantially define a plane, each flexible rod (106) has a mid-point and first and second ends (107) secured to the first and second end-plates (115) respectively. Mounting structures (112) are slidingly attached to the flexible rods (106) between the mid-point and each end-plate (115), proximate to the end. An elastomer (118) envelops the rods to form a flexible skin. A plurality of shape memory alloy rods (103) are arranged parallel to and define a plane and having each end secured to an end-plate (115), the plurality of shape memory alloy rods (103) being contractible when heated such that upon contraction the plurality of shape memory allow rods (103) will buckle the plurality of flexible rods (106) and the flexible skin (118) to alter airflow over the skin.</p> |
