船舶力学
船舶力學
선박역학
JOURNAL OF SHIP MECHANICS
2015年
4期
455-461
,共7页
李凯%赵德有%黎胜%刘松%邢金有
李凱%趙德有%黎勝%劉鬆%邢金有
리개%조덕유%려성%류송%형금유
船舶振动%柴油发电机平台%频率储备%动力特性推算%诊断%治理
船舶振動%柴油髮電機平檯%頻率儲備%動力特性推算%診斷%治理
선박진동%시유발전궤평태%빈솔저비%동력특성추산%진단%치리
ship vibration%diesel generator platform%frequency reservation%dynamic computation%diagnosis%treatments
文章提出了基于振动测试和动力特性推算的振动评估方法,探讨了船舶振动治理中无法进行强迫振动响应计算时所可采用的有效措施。针对典型有害局部振动问题,通过振动测试和三维有限元计算,找出主要的激励源,进而提出了合理的减振措施;基于文中提出的响应推算方法对不满足频率储备要求的减振措施进行评估,响应预报结果满足振动衡准,使该船得以顺利交船。在减振措施及效果评估方面取得了有益的经验,并对今后的船舶减振设计提出了建议。
文章提齣瞭基于振動測試和動力特性推算的振動評估方法,探討瞭船舶振動治理中無法進行彊迫振動響應計算時所可採用的有效措施。針對典型有害跼部振動問題,通過振動測試和三維有限元計算,找齣主要的激勵源,進而提齣瞭閤理的減振措施;基于文中提齣的響應推算方法對不滿足頻率儲備要求的減振措施進行評估,響應預報結果滿足振動衡準,使該船得以順利交船。在減振措施及效果評估方麵取得瞭有益的經驗,併對今後的船舶減振設計提齣瞭建議。
문장제출료기우진동측시화동력특성추산적진동평고방법,탐토료선박진동치리중무법진행강박진동향응계산시소가채용적유효조시。침대전형유해국부진동문제,통과진동측시화삼유유한원계산,조출주요적격려원,진이제출료합리적감진조시;기우문중제출적향응추산방법대불만족빈솔저비요구적감진조시진행평고,향응예보결과만족진동형준,사해선득이순리교선。재감진조시급효과평고방면취득료유익적경험,병대금후적선박감진설계제출료건의。
The diagnosis and comprehensive approach taken in reducing harmful vibration that not satis-fy the frequency reservation are presented. The main excitation source can be identified through vibration testing and finite element analysis. Some effective and optimal treatments are proposed, such as reinforcing the platform with the pillar and box-girder, etc. In case that the reinforced structure does not satisfy the fre-quency reservation and the excitation force, damping rate and the boundary condition are unknown, it pre-sents an evaluation method of vibration level based on the measured data and calculation of Amplitude-Frequency Characteristics, and computation results after modifications show remarkable improvements of vibration, finally, the ship was delivered to owner successfully. Also it gains beneficial experiences and sug-gestions for future vibration reduction design of ship.