全国职业院校技能大赛GZ099船舶主机和轴系安装赛卷子3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2016-3-11计算参数22轴系基本参数23轴承负荷影响系数计算34直线校中计算结果 45中间轴承顶举系数计算51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、腥轴、舰管装置、瞩轴 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/m 3)集中载荷(KN)1014013078500214021016978500335021018378508.245602401907850058

2、00130205785006Brng930390205785007132018051907850083125180220785009Brng3305180220785001034853302107850011381514019078500123955454007850013Fing400045400785001440458551707850015490030018078500165200300180785001755001000170785001865001000170785001975003001807850020Brng780025018078500截面号标识符节点坐标(mm)单元长度(m

3、m)截面直径(mm)材料密度(Kg/m 3)集中载荷 (KN)21Jack8050501807850022810085517078500238955454007850024Fing9000454007850025904541017078500269455454007850027Fing950070155785002895707015578507.41529964038380785003096781501557850031Brng982817715578500321000515015578500.33233Brng1015515015578500341030515015578500.33235B

4、rng1045515015578500361060515015578500.33237Brng1075515015578500381090515015578500.33239Brng1105515015578500401120515015578500.33241Brng1135515015578500421150530015578500.332431180515578500注：Brng表示轴承位置，Jack表示千斤顶位置；Fing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(部分)轴承号1#2#3#4#5#1#1.1520-1.97991.4788-1.93

5、351.53982#-1.97993.6228-3.41915.2766-4.20223#1.4788-3.41913.2871-30.004129.04984#-1.93355.2766-30.0041426.1405-736.74415#1.5398-4.202229.0498-736.74411732.4685注：1)1#-解轴后轴承；2#锯轴前轴承；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

6、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-046.50472.953932078000.0009.7765e-058.41024.321343198280.0001.9834e-0512.28812.6203533101550.000-3.4710e-06-3.65550.3150645104550.0005.9879e-071.60790.3071737107550.000-1.8819e-070.75560.3071839110550.0005.51

7、25e-070.00200.3071941113550.000-3.1806e-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/mm 2)截面剪力 (kN)10.0-0.3393.876e-040.000E+000.0000.00002140.0-0.2843.874e-04-1.001 E+04-0.0460.14313350.0-0.2033.864e-04-7.813E+04-0.1650.50574560.0-0.1223.678e-04-1.951 E+06-3.2439.1309

8、5800.0-0.0393.119e-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+06-1.592-4.4929113815.0-0.115-2.368e-04-3.264E+05-0

9、.359-3.6130123955.0-0.149-2.377e-041.581E+050.235-3.3074134000.0-0.159-2.376e-042.971 E+050.047-2.8721144045.0-0.170-2.376e-044.165E+050.066-2.4367154900.0-0.331-1.115e-041.861 E+063.859-0.9428165200.0-0.356-5.571 e-052.056E+063.591-0.3551175500.0-0.3643.066e-062.074E+063.6230.2326186500.0-0.2512.00

10、4e-049.681 E+052.0071.9799197500.0-0.0411.662e-04-1.837E+06-3.8093.7045207800.00.0009.776e-05-3.037E+06-5.3044.2922218050.00.0182.857e-05-1.889E+06-3.300-3.5303228100.00.0191.530e-05-1.670E+06-3.463-3.4203238955.0-0.003-3.069e-055.167E+051.071-2.0137249000.0-0.004-3.060e-055.975E+050.095-1.5783截面号节点

11、坐标(mm)挠度(mm)转角(rad)截面弯矩 (N*mm)截面弯应力(N/mm 2)截面剪力(kN)259045.0-0.005-3.049e-056.587E+050.105-1.1430269455.0-0.0101.049e-059.805E+052.033-0.4266279500.0-0.0101.066e-059.899E+050.1580.0087289570.0-0.0092.252e-059.858E+052.6960.1104299640.0-0.0063.117e-054.554E+051.2467.6271309678.0-0.0053.122e-051.593E+0

12、50.0307.9588319828.00.0001.983e-05-1.051E+06-2.874800.001-1.230e-06-3.459E+05-0.946-3.85433310155.00.000-3.471 e-061.661E+050.454-3.30443410305.00.000-1.940e-089.708E+040.2660.56903510455.00.0005.988e-07-5.442E+04-0.1491.11893610605.00.0002.773e-092.586E+030.007-0.27113710755.00.000-1.882e-07-2.289E+04-0.0630.27883810905.00.0002.452e-093.228E+040.088-0.25893911055.00.0005.513e-074.978E+030.0140.29104011205.00.000-1.776e-08-5.471 E+04-0.1500.50684111355.00.000-3.181 e-06-1.969E+05-0.5391.05674211505.0-0.001-6.480e-06-6.537E+04-0.179-0.76784311805.0-