XG-121 船舶主机和轴系安装(高职组)赛项赛题 附件1计算说明书

1、.附件1实验台架校中计算书船舶主机和轴系安装赛项专家组2015-5-11.;目 录1计算参数12轴系基本参数13轴承负荷影响系数计算34直线校中计算结果35中间轴承顶举系数计算561计算参数如图1为实验台架轴系布置简图。该台架由柴油机、短轴、中间轴、艉轴、艉管装置、艉轴密封装置、螺旋桨等组成。图1 轴系布置简图2轴系基本参数根据图1简化的轴系校中模型计算参数见表1。表1 台架轴系几何尺寸表截面号标识符节点坐标(mm)单元长度(mm)截面直径(mm)材料密度(Kg/m3)集中载荷(KN)1014013078500214021016978500335021018378508.24560240190

2、785005800130205785006Brng930390205785007132018051907850083125180220785009Brng3305180220785001034853302107850011381514019078500123955454007850013Flng40004540078500144045650170785001546951001707850016479510517078500174900300180785001852003001807850019550010017078500205600900170785002165008001707850022

3、73001001707850023740087170785002474873001807850025Brng7787300180785002680874631707850027Jack855080517078500288955454007850029Flng9000454007850030904541017078500319455454007850032Flng950070155785003395707015578507.41534964038380785003596781501557850036Brng982817715578500371000515015578500.33238Brng10

4、15515015578500391030515015578500.33240Brng1045515015578500411060515015578500.33242Brng1075515015578500431090515015578500.33244Brng1105515015578500451120515015578500.33246Brng1135515015578500471150530015578500.3324811805-15578500注：Brng表示轴承位置，Jack表示千斤顶位置；Flng表示法兰位置；3轴承负荷影响系数计算轴承负荷影响系数见表2。表2 轴承负荷影响系数（部

5、分）轴承号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#-1.93355.2766-30.0041426.1405-736.74415#1.5398-4.202229.0498-736.74411732.4685注：1）1#-艉轴后轴承；2#-艉轴前轴承；3#-中间轴承；4#-柴油机最后一档轴承；5#-柴油机曲轴倒数第2档轴承；2）表中数值为轴承上升1mm产生的负荷(kN)。4直线校中计算结果轴系直线状态下各

6、轴承的状态参数见表3，轴系各截面的状态参数见表4。表3 轴系直线状态下轴承的状态参数表轴承序号截面号轴承位置挠度(mm)转角(rad)支反力(kN)20%G (kN)169300.0002.7669e-0413.95743.08852933050.000-2.0468e-046.50472.953932577870.0009.7765e-058.41024.321343698280.0001.9834e-0512.28812.6203538101550.000-3.4710e-06-3.65550.3150640104550.0005.9879e-071.60790.3071742107550

7、.000-1.8819e-070.75560.3071844110550.0005.5125e-070.00200.3071946113550.000-3.1806e-062.04240.3507表4 直线状态下各截面的状态参数表截面号节点坐标（mm）挠度(mm)转角(rad)截面弯矩（N*mm）截面弯应力(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

8、-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-04-4.126E+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+06-1.592-4.492

9、9113815.0-0.115-2.368e-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+050.047-2.8721144045.0-0.170-2.376e-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-041.8

10、61E+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+064.2340.4073216500.0-0.2512.004e-049.681E+052.0071.9799227300.0-0.0761.995e-04-1.175E+06-2.4363.3777237400.0-0.0561.835e-04-1.521E+06-3.1543.5525247487.0-0.0411.66

11、2e-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-05-1.670E+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+050.105-1.14303194

12、55.0-0.0101.049e-059.805E+052.033-0.4266329500.0-0.0101.066e-059.899E+050.1580.0087339570.0-0.0092.252e-059.858E+052.6960.1104349640.0-0.0063.117e-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+05-0.946-3.8

13、5433810155.00.000-3.471e-061.661E+050.454-3.30443910305.00.000-1.940e-089.708E+040.2660.56904010455.00.0005.988e-07-5.442E+04-0.1491.11894110605.00.0002.773e-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+04-0.179-0.76784