文档介绍：Classi?ed Index: TP273 .: Dissertation for the Master Degree in Engineering PARAMETRIC APPROACH OF ACTIVE CONTROL TECHNOLOGY FOR TAiLLESS FLYING-WING AIRCRAFT Candidate: Gao Chunyan Supervisor: Professor Duan Guangren Academic Degree Applied for: Master of Engineering Specialty: Control Science and Engineering Af?liation: Center for Control Theory and Guidance Technology Date of Defence: June, 2008 Degree-Conferring-Institution: Harbin Institute of Technology ?????????????????Ч??????????????????????????????????????????????????????????????????????????????????????????????????????????????ν???????????????????????????????????????ν???????????????????????????????????????????????????????????????????????????????????????????????????с??????????????????????????Ч???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????б?????б???????????????????????????????????????????б??????????????????????????????????????????????????????????????????????????????????????????????????????Ч?????????????????????????????????????????????????????????????????????????????????????????????????;???????????????????????????– I –??????????????? Abstract This thesis investigates ?ight control problems of a heavier than air vehicle with ?xed ?xed-wing, which is required that this vehicle could ?y in the high altitude in subsonic speed and the active control technology can be realized. The techniques of relaxed static stability and active ?utter suppression are involved and safe ?ight tactics are discussed additionally for these. The ?ying-wing vehicles without horizontal stabilizer and vertical tail are the one body of fuselage and wing. The elevons and split drag rudders are ?xed on the trail edges along the wing outward. Thus, the natural stabilities of longitudinal and lateral directions are deteriorated, even statically unstable. These statically unstable ?ying-wing vehicles can’t be operated unless the ?y-by-wire con