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題 名 | 軍艦桅杆與雷達結構動力之互制與匹配=The Interaction of Structure Dynamics between Radar and Mast on Warships |
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作 者 | 薛文証; 李雅榮; 陳國在; | 書刊名 | 中國造船暨輪機工程學刊 |
卷 期 | 16:3 1997.08[民86.08] |
頁 次 | 頁1-9 |
分類號 | 444.62 |
關鍵詞 | 桅杆振動; 雷達振動; 雷達干擾; 結構動力; Mast vibration; Radar vibration; Radar interference; |
語 文 | 中文(Chinese) |
中文摘要 | 本文旨在研究軍艦桅杆與雷達結構的動力交互作用,了解桅杆結構特性與雷達干擾關係,以提供桅杆與雷達匹配設計參考,減少雷達受桅杆振動的干擾。 本文考慮雷達旋轉、雷達基座彎曲以及桅杆側向振動的動力行為,推導彼此動力交互作用及耦合關係。研究結果發現,在桅杆與雷達基座的自然振頻完全不重疊情況下,桅杆與雷達基座的動力交互作用程度微小。但是在雷達基座與桅杆的自然振頻有部份重疊情況,桅杆與雷達基座將產生動力干擾現象,此時,在共振頻率上,桅杆振動量會因動力交互作用影響而降低,但雷達基座受到的干擾卻大幅增加。在這種情況下,如使用傳統桅杆分析或測試方法,存有盲點,設計者可能會因桅杆的低振動量,低估雷達受干擾程度,值得注意。 |
英文摘要 | The interaction of structure dynamics between mast and radar of warships is investigated. Considering the bending vibration of mast, bending and rotation motion of radar, the governing equations of the mast and radar were derived. In order to understand the effect of the interection, a mast and radar of a warship was considered in the numerical simulation. The results show that the interaction between the mast and radar is limited if all the natural frequencies of the mast and radar structure are different. However, the vibration of the mast will become smaller if any natural frequencies of the radar structure meet those of the mast. In addition, the radar vibration would be enlarged because some of the exciting energy was transferred from the mast. |
本系統中英文摘要資訊取自各篇刊載內容。