XG-121 船舶主機(jī)和軸系安裝(高職組)賽項(xiàng)賽題 附件1計(jì)算說明書

1、.附件1實(shí)驗(yàn)臺(tái)架校中計(jì)算書船舶主機(jī)和軸系安裝賽項(xiàng)專家組2015-5-11.目 錄1計(jì)算參數(shù)12軸系基本參數(shù)13軸承負(fù)荷影響系數(shù)計(jì)算34直線校中計(jì)算結(jié)果35中間軸承頂舉系數(shù)計(jì)算5.1計(jì)算參數(shù)如圖1為實(shí)驗(yàn)臺(tái)架軸系布置簡圖。該臺(tái)架由柴油機(jī)、短軸、中間軸、艉軸、艉管裝置、艉軸密封裝置、螺旋槳等組成。圖1 軸系布置簡圖2軸系基本參數(shù)根據(jù)圖1簡化的軸系校中模型計(jì)算參數(shù)見表1。表1 臺(tái)架軸系幾何尺寸表截面號(hào)標(biāo)識(shí)符節(jié)點(diǎn)坐標(biāo)(mm)單元長度(mm)截面直徑(mm)材料密度(Kg/m3)集中載荷(KN)1021403358.245605806Brng930778500831259Brng3305178500178

2、500123955454007850013Flng4001445001546951001707850016479510517078500174900185200195500278500216500227300237402474873001807850025Brng77873001807850026850027Jack8550288955454007850029Flng900378500319455454007850032Flng95033957.4153496435967836Brng9828177155785003710005.33238Brn33240Brng10

3、4554110605.33242Brng107554310905.33244Brng110554511205.33246Brng185004718500.3324810注：Brng表示軸承位置，Jack表示千斤頂位置；Flng表示法蘭位置；3軸承負(fù)荷影響系數(shù)計(jì)算軸承負(fù)荷影響系數(shù)見表2。表2 軸承負(fù)荷影響系數(shù)（部分）軸承號(hào)1#2#3#4#5#1#1.1520-1.97991.4788-1.93351.53982#-1.97993.6228-3.41915.2766-4.20223#1.4788-3.41917.7466-30.004129.04984#-1.93355.2766-30.00414

4、26.1405-736.74415#1.5398-4.202229.0498-736.74411732.4685注：1）1#-艉軸后軸承；2#-艉軸前軸承；3#-中間軸承；4#-柴油機(jī)最后一檔軸承；5#-柴油機(jī)曲軸倒數(shù)第2檔軸承；2）表中數(shù)值為軸承上升1mm產(chǎn)生的負(fù)荷(kN)。4直線校中計(jì)算結(jié)果軸系直線狀態(tài)下各軸承的狀態(tài)參數(shù)見表3，軸系各截面的狀態(tài)參數(shù)見表4。表3 軸系直線狀態(tài)下軸承的狀態(tài)參數(shù)表軸承序號(hào)截面號(hào)軸承位置撓度(mm)轉(zhuǎn)角(rad)支反力(kN)20%G (kN)169300.0002.7669e-0413.95743.08852933050.000-2.0468e-046.5047

5、2.953932577870.0009.7765e-058.41024.321343698280.0001.9834e-0512.28812.6203538101550.000-3.4710e-06-3.65550.3150640104550.0005.9879e-071.60790.3071742107550.000-1.8819e-070.75560.3071844110550.0005.5125e-070.00200.3071946113550.000-3.1806e-062.04240.3507表4 直線狀態(tài)下各截面的狀態(tài)參數(shù)表截面號(hào)節(jié)點(diǎn)坐標(biāo)（mm）撓度(mm)轉(zhuǎn)角(rad)截面彎矩（

6、N*mm）截面彎應(yīng)力(N/mm2)截面剪力(kN)10.0-0.3393.876e-040.000E+000.0000.00002140.0-0.2843.874e-04-1.001E+04-0.0460.14313350.0-0.2033.864e-04-7.813E+04-0.1650.50574560.0-0.1223.678e-04-1.951E+06-3.2439.13095800.0-0.0393.119e-04-4.205E+06-6.2459.65476930.00.0002.767e-04-5.482E+06-6.4819.985171320.00.0861.725e-04-

7、4.126E+06-4.878-2.981483125.00.035-1.864e-04-2.300E+06-3.4160.958493305.00.000-2.047e-04-2.520E+06-2.4111.4851103485.0-0.039-2.205e-04-1.664E+06-1.592-4.4929113815.0-0.115-2.368e-04-3.264E+05-0.359-3.6130123955.0-0.149-2.377e-041.581E+050.235-3.3074134000.0-0.159-2.376e-042.971E+050.047-2.8721144045

8、.0-0.170-2.376e-044.165E+050.066-2.4367154695.0-0.303-1.540e-041.631E+063.382-1.3010164795.0-0.318-1.340e-041.753E+063.634-1.1263174900.0-0.331-1.115e-041.861E+063.859-0.9428185200.0-0.356-5.571e-052.056E+063.591-0.3551195500.0-0.3643.066e-062.074E+063.6230.2326205600.0-0.3622.746e-052.042E+064.2340

9、.4073216500.0-0.2512.004e-049.681E+052.0071.9799227300.0-0.0761.995e-04-1.175E+06-2.4363.3777237400.0-0.0561.835e-04-1.521E+06-3.1543.5525247487.0-0.0411.662e-04-1.837E+06-3.8093.7045257787.00.0009.776e-05-3.037E+06-5.3044.2922268087.00.0182.857e-05-1.889E+06-3.300-3.5303278150.00.0191.530e-05-1.670

10、E+06-3.463-3.4203288955.0-0.003-3.069e-055.167E+051.071-2.0137299000.0-0.004-3.060e-055.975E+050.095-1.5783309045.0-0.005-3.049e-056.587E+050.105-1.1430319455.0-0.0101.049e-059.805E+052.033-0.4266329500.0-0.0101.066e-059.899E+050.1580.0087339570.0-0.0092.252e-059.858E+052.6960.1104349640.0-0.0063.11

11、7e-054.554E+051.2467.6271359678.0-0.0053.122e-051.593E+050.0307.9588369828.00.0001.983e-05-1.051E+06-2.874800.001-1.230e-06-3.459E+05-0.946-3.85433810155.00.000-3.471e-061.661E+050.454-3.30443910305.00.000-1.940e-089.708E+040.2660.56904010455.00.0005.988e-07-5.442E+04-0.1491.11894110605

12、.00.0002.773e-092.586E+030.007-0.27114210755.00.000-1.882e-07-2.289E+04-0.0630.27884310905.00.0002.452e-093.228E+040.088-0.25894411055.00.0005.513e-074.978E+030.0140.29104511205.00.000-1.776e-08-5.471E+04-0.1500.50684611355.00.000-3.181e-06-1.969E+05-0.5391.05674711505.0-0.001-6.480e-06-6.537E+04-0.179-0.76784811805.0-0.003-7.600e-