噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2013年
1期
40-44
,共5页
振动与波%气囊隔振器%浮筏%姿态控制
振動與波%氣囊隔振器%浮筏%姿態控製
진동여파%기낭격진기%부벌%자태공제
vibration and wave%air spring isolator%raft%attitude control
将气囊隔振器应用于浮筏隔振装置可显著提高低频隔振效果,但隔振元件的三相低频大位移也将带来三相动态平衡欠佳的实际问题,其中一个技术难点在于如何保持筏架姿态平衡.分析引起筏架姿态变化的各类扰动力特点及其影响;研究通过调整气囊压力保持筏架姿态平衡的可行性.结果表明,船体摇摆、装置负载变化及气囊漏气是影响筏架姿态平衡的主要扰动因素,气囊浮筏隔振装置可以通过气压的调整,在扰动力的影响下保持筏架姿态平衡.
將氣囊隔振器應用于浮筏隔振裝置可顯著提高低頻隔振效果,但隔振元件的三相低頻大位移也將帶來三相動態平衡欠佳的實際問題,其中一箇技術難點在于如何保持筏架姿態平衡.分析引起筏架姿態變化的各類擾動力特點及其影響;研究通過調整氣囊壓力保持筏架姿態平衡的可行性.結果錶明,船體搖襬、裝置負載變化及氣囊漏氣是影響筏架姿態平衡的主要擾動因素,氣囊浮筏隔振裝置可以通過氣壓的調整,在擾動力的影響下保持筏架姿態平衡.
장기낭격진기응용우부벌격진장치가현저제고저빈격진효과,단격진원건적삼상저빈대위이야장대래삼상동태평형흠가적실제문제,기중일개기술난점재우여하보지벌가자태평형.분석인기벌가자태변화적각류우동력특점급기영향;연구통과조정기낭압력보지벌가자태평형적가행성.결과표명,선체요파、장치부재변화급기낭루기시영향벌가자태평형적주요우동인소,기낭부벌격진장치가이통과기압적조정,재우동력적영향하보지벌가자태평형.
The isolation performance of raft can be improved greatly in low frequency range when air spring isolators are adopted. But three-phased low-frequency large deformation of the isolation component will deteriorate its three-phased dynamic balance. How to keep raft attitude balance becomes a challenging technical problem for soft isolation systems. In this paper, the factors influencing on raft attitude were given in detail based on the analysis of disturbance sources of the raft system. The feasibility of keeping raft attitude balance through adjusting the pressure in the air spring was studied. The analysis results show that seaway motion, load fluctuation and air spring leakage are the main disturbance sources for raft attitude balance, and the controlling approach of adjusting the pressure in the air spring for raft attitude balance is proved valid.