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題名 | 指向性天線側向振動之主動控制=Active Control for the Lateral Vibration of Directional Antenna |
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作者 | 薛文証; 蔡宜修; Hsueh, Wen-jeng; Tsay, Yi-shiou; |
期刊 | 力學 |
出版日期 | 19981200 |
卷期 | 14:2 1998.12[民87.12] |
頁次 | 頁83-91 |
分類號 | 448.813 |
語文 | chi |
關鍵詞 | 振動抑制; 主動振動控制; 指向性天線; Vibration reduction; Active vibration control; Directional antenna; |
中文摘要 | 本文提出以電流回授主動振動控制方式,抑制指向性天線之側向振動。本方法主 要以機、電一體的觀念,在天線的電機動力伺服系統內,加入一抑制迴路,以天線電動機的 旋轉動力抑制天線的振動。本方法之特點為,不必於系統外另外再添加制動器及感應器,即 可達到抑制振動效果,因此,可以減少系統的復雜性,提高可靠度。由數值分析結果顯示, 利用本方法,可將指向性天線振動減少75%,此外對天線振動導致之伺服干擾也能有效抑 制。最後本文以模型實驗驗證,實驗結果與數值模擬結果相吻合,確認理論之正確性。 |
英文摘要 | Applying an active vibration control method for the reduction of the lateral vibration of directional antenna is investigated. Based on the concept of integrated electrical and mechanical dynamics, and active vibration control circuit is connected with the servo loop of the antenna system to decrease the lateral vibration using the rotation energy. Using this technology, the vibration of antenna can be attenuated without external mechanical sensors or actuators. The results of the numerical simulation show that the acceleration of lateral vibration can be reduced 75% if the active control system is applied on a radar antenna. An experiment of a scaled model produces a good approach to the simulation results based on the proposed theory. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。