船舶
船舶
선박
SHIP & BOAT
2014年
4期
82-86
,共5页
气垫船运动%气垫压缩性%非线性计算%耐波性预报
氣墊船運動%氣墊壓縮性%非線性計算%耐波性預報
기점선운동%기점압축성%비선성계산%내파성예보
motion of ACV%cushion compressibility%nonlinear calculation%prediction of seakeeping performance
文中主要就气垫压缩性对气垫船运动、气垫压力响应以及实艇耐波性预报的影响进行了研究。首先遵循绝热变化规律，给出艇体由气垫压缩性引起的气垫流量变化；然后通过考虑围裙浸水等非线性因素，结合计及气垫压缩性的流量连续性方程，建立完整的艇体非线性运动微分方程，并运用合理的数值计算方法，得到艇体的运动响应、气垫压力响应；最后通过与模型试验结果的比较，说明了压缩性在气垫船运动计算与实船预报中的重要性和必要性。
文中主要就氣墊壓縮性對氣墊船運動、氣墊壓力響應以及實艇耐波性預報的影響進行瞭研究。首先遵循絕熱變化規律，給齣艇體由氣墊壓縮性引起的氣墊流量變化；然後通過攷慮圍裙浸水等非線性因素，結閤計及氣墊壓縮性的流量連續性方程，建立完整的艇體非線性運動微分方程，併運用閤理的數值計算方法，得到艇體的運動響應、氣墊壓力響應；最後通過與模型試驗結果的比較，說明瞭壓縮性在氣墊船運動計算與實船預報中的重要性和必要性。
문중주요취기점압축성대기점선운동、기점압력향응이급실정내파성예보적영향진행료연구。수선준순절열변화규률，급출정체유기점압축성인기적기점류량변화；연후통과고필위군침수등비선성인소，결합계급기점압축성적류량련속성방정，건립완정적정체비선성운동미분방정，병운용합리적수치계산방법，득도정체적운동향응、기점압력향응；최후통과여모형시험결과적비교，설명료압축성재기점선운동계산여실선예보중적중요성화필요성。
This paper mainly focus on the investigation of the inlfuence of cushion compressibility on the motion response of air cushion vehicle(ACV), cushion pressure response and prediction of its seakeeping performance. Firstly, it derives the change of cushion lfow caused by the cushion compressibility on the basis of the adiabatic assumption. Then, it sets up the intact nonlinear motion differential equations through the flow continuity equations involved with the cushion compressibility and other nonlinear effects such as skirt immersion. It also derives the motion responses of vehicle and the cushion pressure responses by the reasonable numerical calculation method. Finally, the comparison with model test results shows that compressibility is important and necessary in motion calculation and full-scale prediction.
