| INVESTIGATION OF ACTIVE CONTROL FOR DYNAMIC STABILITY OF HELICOPTER ROTOR－BODY COUPLING |
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| 作者姓名： | Ling Aimin |
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| 作者单位： | Chinese Helicopter Research and Design Institute，Jindezhn，Jiangxi，China，333001 |
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| 摘 要： | ＩＮＶＥＳＴＩＧＡＴＩＯＮ ＯＦ ＡＣＴＩＶＥ ＣＯＮＴＲＯＬ ＦＯＲ ＤＹＮＡＭＩＣ ＳＴＡＢＩＬＩＴＹ ＯＦ ＨＥＬＩＣＯＰＴＥＲ ＲＯＴＯＲ－ＢＯＤＹ ＣＯＵＰＬＩＮＧＬｉｎｇＡｉｍｉｎ（ＣｈｉｎｅｓｅＨｅｌｉｃｏｐｔｅｒＲｅｓｅａｒｃｈａｎｄ...
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INVESTIGATION OF ACTIVE CONTROL FOR DYNAMIC STABILITY OF HELICOPTER ROTOR-BODY COUPLING |
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| Ling Aimin.INVESTIGATION OF ACTIVE CONTROL FOR DYNAMIC STABILITY OF HELICOPTER ROTOR-BODY COUPLING[J].Chinese Journal of Aeronautics,1996(4). |
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| Authors: | Ling Aimin |
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| Abstract: | A study is conducted on the feasibility of helicopter ground and air resonanceby using actively controlled tabs mounted at the trailing edge of an aerofoil. A method isdeveloped to obtain the optimal feedback control law through constructing a referencemodel according to requirements of stability levels in the modal space. The effects of rotorspeed and length and location of tabs on the control law are analyzed, and it is found possible that a controller can be designed into constant feedback gain against rotor speed andto feed back only to the dominant system states to eliminate the unstable range of rotorspeed. |
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| Keywords: | tabs (control surfaces) helicopters rotor body interactions coupling dynamic stability active control |
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