中國石油大學(xué)船舶搖擺實驗匯總

： ： ： ： _125）12）“”是運動標志它很遭程度急程度它波它遭程度角 B去進入自由自由衰減曲線是按 指規(guī)律隨時間衰減相鄰兩個或谷之間時間間隔極為。衰減時歷曲線消滅曲線船舶自由橫搖衰減曲線將相鄰的兩個搖幅依次相減，求出每次擺動中的衰減角將一次擺動的幅值平均，得到代表這次擺動幅度大小的平均搖幅a 兔色+1m_2以菽第為橫坐標，為縱坐標繪制曲線，即為橫搖消滅曲線。在半個周期時間間隔內(nèi)，橫搖幅值絕對值的變化為:由以上關(guān)系可得無因次衰減系數(shù)的表達式為： 快：'衣子|根據(jù)船舶在靜水中的自由橫搖衰減實驗測得得到的衰減曲線，便可分析得到 橫搖的固有周期和無因次阻尼系數(shù)。自由橫搖理論同樣適用于其他形式的單自由 度震蕩運動。3、實驗步驟（10）（1） 確認所有實驗設(shè)備處于正確的初始狀態(tài)，包括： 船舶（模）的搖擺運動不 會到，角測上運正（2） 運角測（3） 船舶其（4） 角測上的 始”，時始測角數(shù)據(jù)示在 上；”按鈕止數(shù)據(jù)；將記錄下來數(shù)據(jù)保存在指文中；、、4~退出”按鈕關(guān)閉該結(jié)束實驗。砝碼擺放位置如下圖所示：300g 300g 300g 200g 500.O2000Og\o00/\ooo/\ooo/to00/）

700g -6.31-6.31根據(jù)得數(shù)據(jù)繪制隨變化曲線、消滅曲線求實驗周期、無因次阻尼系數(shù)并寫出算例。所數(shù)據(jù)中每兩個相鄰數(shù)據(jù)之100ms10個/秒頻率和記錄。）00.10.20.30.40.50.60.70.8記錄偏角14.0714.0113.310.054.67-15.51-10.99-2.067.55實際偏角12.2512.1911.488.232.85*-17.33-12.81-3.885.73^記錄偏角0.98.2316.581.13.351.21.3〔1.4-8.081.52.531.65.271.7〔5.97實際偏角6.414.761.53-2.52-8.13-9.90.713.45；4.15]1.81.922.12.22.32.42.52.6記錄偏角4.171.51-6.11-2.291.825.723.9-2.55-5.13實際偏角2.35-0.31-7.93-4.1103.92.08-4.37-6.95[2.72.82.933.13.23.33.43.5記錄偏角-4.12-0.185.20.94-1.02-1.942.333.443.61實際偏角-5.94-23.38-0.88-2.84-3.760.511.621.793.63.73.83.944.14.24.3)4.4記錄偏角2.81.63-0.63-0.220.952.383.683.162.16]實際偏角0.98-0.19-2.45-2.04：-0.870.561.861.340.34]4.54.64.74.84.955.15.25.31記錄偏角實際偏角0.15-1.670.13-1.690.95-0.872.110.2912.951.133.111.292.690.871.970.15；1.29-5.45.55.65.7； ；記錄偏角0.971.071.461.94實際偏角-0.85-0.75-0.360.12=1.10059=1.10059讀出9組相鄰兩個橫搖峰值或谷值之間的時間間隔如下表:畫出曲線圖如下:序號123456789s0.80.60.60.60.70.60.60.60.6取平均值的橫搖固有周期Ts=0.633s無因次衰減系數(shù)計算：=0.03052=0.03052000.10.20.30.40.50.60.70.80.911.11.21.31.41.51.61.72.50.432.30.232.462.650.390.5814.614.7814.8114.8414.8714.7914.6512.03/./112.5312.7112.7412.7712.812.7212.589.965.642.29-12.27-12.64-7.80.498.178.527.014.220.22-14.34-14.71-9.87-1.586.16.454.942.151.81.9 2 2.1 2.2 2.3 2.4 2.5 2.6角 0.86 -4.05-6.89-1.92.014.856.355.012.94角-1.21 -6.12-8.96-3.97-0.062.784.282.940.872.72.82.933.13.23.33.43.5-3.02-1.694.485.284.823.6 2.05 0.66 -0.34-5.09-3.762.413.212.751.53 -0.02 -1.41 -2.413.63.73.8 3.9 4 4.1 4.2 4.3 4.4角 0.75 2.163.454.043.342.351.4611.52角-1.32 0.091.381.971.270.28-0.61[-1.07-0.554.54.64.7 4.8 4.9 5 5.1 5.2 5.33.23.12.661.561.381.532.892.94 2.71.131.030.59-0.51-0.69-0.540.820.87 0.635.45.55.6 5.7 5.8 5.9 6 6.1 6.21.811.541.56 2.47 2.64 2.21 1.96 2.04 2.23-0.26-0.53-0.51 0.4 0.57 0.14 -0.11 -0.03 0.166.36.46.5 6.6 6.7 6.8 6.9 7 7.12.472.342.02 2.15 2.620.40.27-0.05 0.08 0.557.27.37.4 7.5 7.6 7.7 2.112.12.282.462.462.342.260.040.030.210.390.390.270.19tTs=0.74s一第三組驗數(shù)據(jù)：時00.10.20.30.40.50.60.70.813.1912.3910.597.49-0.82-7.08-9.87-8.960.5610.9210.128.325.22-3.09-9.35-12.14-11.23-1.710.911.11.21.31.41.51.61.73.98.268.437.214.992.36-0.06-3.49-4.771.635.996.164.942.720.09-2.33-5.76-7.041.81.922.12.22.32.42.52.61.844.096.696.615.674.062.130.4-1.42-0.431.824.424.343.41.79-0.14-1.87-3.692.72.82.933.13.23.33.43.50.92.433.865.395.294.592.10.930.2-1.370.161.593.123.022.32-0.17-1.34-2.073.63.73.83.944.14.24.34.41.332.433.54.684.513.831.240.831.08-0.940.161.232.412.241.56-1.03-1.44-1.194.54.64.74.84.955.15.25.31.662.413.163.953.813.372.11.571.25-0.610.140.891.681.541.1-0.17-0.7-1.025.45.55.65.75.85.966.16.21.381.782.292.783.143.313.273.042.28-0.89-0.490.020.510.871.0410.770.016.36.46.56.66.76.86.977.11.911.661.882.182.662.732.72.612.48-0.36-0.61-0.39-0.090.390.460.430.340.217.27.37.47.57.67.72.352.212.12.032.072.130.08-0.06-0.17-0.24-0.2-0.14希 三組歷曲線度同理=四組驗數(shù)據(jù):^~00.10.2~030.40.5~06~07~0816.316.4616.2516.0316.0316.1913.6611.027.1513.2513.4113.212.9812.9813.1410.617.97~4.10.911.11.21.31.41.51.61.7-10.04-13.88-14.85-2.152.498.3110.1710.8 10.2-13.09-16.93-17.9-5.2-0.565.267.127.75 7.15^ 1.8 1.9' ~2 2.2~24~25~26度 8.54^ 6.16 3.54 -1.72 -4.47 -5.83-5.552.65.04^3.63.73.83.944.14.24.34.4-1.82-0.624.195.777.617.616.973.342.23-4.87-3.671.142.724.564.563.920.29-0.824.54.64.74.84.955.15.25.30.410.731.553.925.025.96.425.754.85-2.64-2.32-1.50.871.972.853.372.71.85.45.55.65.75.85.966.16.23.9213.072.351.822.162.84.325.085.670.87 0.02 -0.7 -1.23 -0.89 -0.25 1.27 2.032.627.15.64 5.124.476.63.092.582.332.683.22.59) 2.071.420.04-0.47-0.78-0.72-0.370.153.814.444.995.395.254.764.152.682.540.761.391.942.342.21.711.1-0.37-0.518.18.28.38.48.58.62.793.133.575.115.365.35-0.260.080.522.062.312.3s四1234/S0.630.740.981.1750.030520.09130.05750.019895、思考題（20）根驗結(jié)果指驗中對船舶影響的素及其程相應(yīng)的論支撐）。答根驗結(jié)果船舶與重心高關(guān)并且隨著重心高的增加/S10.6320.74340.981.175『甞5.496.953.95.496.953.9-4.773-8.63.34.421.37-0.453.41.993.58.365.31--4.8*6.36.46.56.76.977.7.47.57.67.77.87.98

, 當(dāng)重心上升, 增大而基本不、上自由液面、懸掛質(zhì)量等簡述減裝置種類及優(yōu)缺點。目前常用減裝置舭龍骨、減鰭、減水艙、減舵。舭龍骨