挖泥船维修吊机分析报告2.doc

挖泥船维修吊机计算分析报告The dredger crane calculation and analysis report图87上、下油缸臂Mises应力云图The Mises stress contour of the main jib cylinder and the knuckle jib cylinder5.2.3 支座反力Reaction force对于有限元模型的中枢底部截面，得到的主要反力大小为：As to the finite element of the king structure, the major forces are:力矩：167.41tmMoment: 167.41tm竖向反力：34.43tVertical reaction force: 34.43t水平反力：0Vertical reaction force: 0t5.2.4 副臂架The knuckle jib副臂架的受力情况如图88-图91所示。The stress of the knuckle jib are shown in Figure 88 - Figure 91.副臂架的最大Mises应力约为78.4MPa，在上油缸臂拐角处。The maximum stress appears at the inner corner of the knuckle jib, and the Mises stress is about 78.4Mpa.在绞盘（吊点）处，当底板加强以后，应力大值将出现在铰点邻近区域。When the base plate is strengthened, thebig stress appears at the nearby place of the winch (the lifting point).在上油缸臂上铰点处，当底板加强以后，应力大值将出现在铰点邻近区域，并且内部拐角处有较明显的应力集中。When the base plate is strengthened, thebig stress appears at the nearby place of the hinge, and the stress concentration appears at the inner corner.副臂架与主臂架铰点处耳板的应力较小。The stress in the bracket of the main jib and the knuckle jib is small.图88副臂架应力云图The stress contour of the knuckle jib图89绞盘（吊点）处应力云图The stress contour of the winch (the lifting point)图90上油缸臂上铰点处应力云图The stress contour of the hinge of the knuckle jib cylinder to the knuckle jib图91主臂架-副臂架铰点处应力云图The stress contour of the hinge of the main jib to the knuckle jib5.2.5 主臂架The main jib主臂架的受力情况如图92-图96所示。The stress of the main jib are shown in Figure 92 - Figure 96.主臂架的最大应力约为98.5MPa，在下油缸臂上铰点处。The maximum stress appears atthenearby place of the top hinge of the main jib cylinder, and the Mises stress is about 98.5 Mpa.在上油缸臂下铰点及下油缸臂上铰点，当底板加强以后，应力大值出现在铰点邻近区域。When the base plate is strengthened, thebig stress appears at the nearby place of the hinge, both the main jib cylinder andthe knuckle jib cylinder.中枢与主臂架铰点、主臂架与副臂架铰点处的应力均较小。Thestress at the hinge of the knuckle jib cylinder to the main jib, and the hinge of the main jib cylinder to the main jib is relatively small.图92主臂架应力云图The stress contour of the main jib图93上油缸臂下铰点处应力云图The stress contour of the hinge of the knuckle jib cylinder to the main jib图94下油缸臂上铰点处应力云图The stress contour of the hinge of the main jib cylinder to the main jib图95主臂架-副臂架铰点处应力云图The stress contour of the hinge of the main jib to the knuckle jib图96中枢-主臂架铰点处应力云图The stress contour of the hinge of the main jib to the king structure5.2.6 中枢The king structure中枢部分的受力和变形情况如图97-图98所示。The stress of the king structure are shown in Figure 97 - Figure 98.应力最大值约为95.5Mpa，变形量的最大值约为0.7mm。The maximum Mises stress is 95.5Mpa, and the maximum deformation is about 0.7mm.图97中枢应力云图The stress contour of the king structure图98中枢变形云图The coutour of the king structure deformation5.2.7 铰点轴杆The bolts主臂架-副臂架铰点轴杆、中枢-主臂架铰点轴杆的受力情况如图99-图100所示。The stress and deformation of the main jibbolts and the the knuckle jib bolts are shown in Figure 99 - Figure 100.主臂架-副臂架铰点轴杆的应力最大值约为19.0Mpa，中枢-主臂架铰点轴杆的应力最大值约为32.2Mpa，都不大。The maximum Mises stress in the knucklejibboltsare about 19.0Mpa, and themaximum Mises stress in the main jib bolts are about 32.2Mpa.图99主臂架-副臂架铰点轴杆Mises应力云图The Mises stress of the the knuckle jib bolts图100中枢-主臂架铰点轴杆Mises应力云图The Mises stress of the axis of the main jib bolts5.3工况二Case 25.3.1 整体应力和变形情况Overall stress and deformation工况二的整体受力和变形情况如图101-图102所示。The stress and deformation of case 1 are shown in Figure 101 - Figure 102.由应力云图可见，应力大值分布在臂架连接部、油缸与吊臂铰点、主臂架顶底板、中枢后部等位置。应力的最大值出现在中枢铰点附近，其Mises应力约为174.4Mpa。As the stress contour shows, the big values of the stress are distributed in the following parts: the hinge parts of the jib, the hinge parts of the jib cylinder, the top and bottom plate of the main jib, and the rear part of the king structure.The maximum stress appears in the hingeof the king structure to the main jib, the Mises stress is about 174.4Mpa.变形量以副臂架最大，其大小约为5.3cm，其中X方向的最大变形量约为3.8cm，Z方向的变形量约为4.3cm。The maximum deformation of the knuckle jib is about 5.3cm, the X-direction of the maximum deformation is about 3.8cm, and the Z direction of deformation is about 4.3cm.（a）Mises应力The Mises stress（b）大主应力The Max principal stress图101应力云图The stress contour（a）变形大小云图The magniture of deformation（b）X方向变形The U1 ( x ) deformation（c）Z方向变形The U3 ( z ) deformation图102变形云图The coutour of the deformation5.3.2 油缸臂轴力The stress of the main jib cylinder and the knuckle jib cylinder上、下油缸臂的受力情况如图103所示。The stress of the main jib cylinder and the knuckle jib cylinder are shown in Figure 103.模型中杆单元采用的是直径0.14m的实心圆杆，换算成轴力后的上油缸臂为-5.37t，下油缸臂为69.47t。The diameter of the cylinder is 0.14m, and the axial force is -5.37t for the knuckle jib cylinder, and 69.47t for the main jib cylinder.图103 上、下油缸臂Mises应力云图The Mises stress contour of the main jib cylinder and the knuckle jib cylinder5.3.3 支座反力Reaction force对于有限元模型的中枢底部截面，得到的主要反力大小为：As to the finite element of the king structure, the major forces are:力矩：275.73tmMoment: 275.73tm竖向反力：34.34tVertical reaction force: 34.34t水平反力：0Vertical reaction force: 0t5.3.4 副臂架The knuckle jib副臂架的受力情况如图104-图107所示。The stress of the knuckle jib are shown in Figure 104 - Figure 107.副臂架的最大Mises应力约为67.4MPa，在上油缸臂拐角处。The maximum stress appears at the inner corner of the knuckle jib, and the Mises stress is about 67.4Mpa.在绞盘（吊点）处，当底板加强以后，应力大值将出现在铰点邻近区域。When the base plate is strengthened, thebig stress appears at the nearby place of the winch (the lifting point).在上油缸臂上铰点处，当底板加强以后，应力大值将出现在铰点邻近区域，并且内部拐角处有较明显的应力集中。When the base plate is strengthened, thebig stress appears at the nearby place of the hinge, and the stress concentration appears at the inner corner.副臂架与主臂架铰点处耳板的应力较小。The stress in the bracket of the main jib and the knuckle jib is small.图104副臂架应力云图The stress contour of the knuckle jib图105绞盘（吊点）处应力云图The stress contour of the winch (the lifting point)图106上油缸臂上铰点处应力云图The stress contour of the hinge of the knuckle jib cylinder to the knuckle jib图107主臂架-副臂架铰点处应力云图The stress contour of the hinge of the main jib to the knuckle jib5.3.5 主臂架The main jib主臂架的受力情况如图108-图112所示。The stress of the main jib are shown in Figure 108 - Figure 112.主臂架的最大应力约为153.1MPa，在下油缸臂上铰点处。The maximum stress appears atthenearby place of the top hinge of the main jib cylinder, and the Mises stress is about 153.1 Mpa.在上油缸臂下铰点及下油缸臂上铰点，当底板加强以后，应力大值出现在铰点邻近区域。When the base plate is strengthened, thebig stress appears at the nearby place of the hinge, both the main jib cylinder andthe knuckle jib cylinder.中枢与主臂架铰点、主臂架与副臂架铰点处的应力均较小。Thestress at the hinge of the knuckle jib cylinder to the main jib, and the hinge of the main jib cylinder to the main jib is relatively small.图108主臂架应力云图The stress contour of the main jib图109上油缸臂下铰点处应力云图The stress contour of the hinge of the knuckle jib cylinder to the main jib图110下油缸臂上铰点处应力云图The stress contour of the hinge of the main jib cylinder to the main jib图111主臂架-副臂架铰点处应力云图The stress contour of the hinge of the main jib to the knuckle jib图112中枢-主臂架铰点处应力云图The stress contour of the hinge of the main jib to the king structure5.3.6 中枢The king structure中枢部分的受力和变形情况如图113-图114所示。The stress of the king structure are shown in Figure 113 - Figure 114.应力最大值约为174.4Mpa（应力集中），变形量的最大值约为1.7mm。The maximum Mises stress is 174.4Mpa (stress concentration), and the maximum deformation is about 1.7mm.图113中枢应力云图The stress contour of the king structure图114中枢变形云图The coutour of the king structure deformation5.3.7 铰点轴杆The bolts主臂架-副臂架铰点轴杆、中枢-主臂架铰点轴杆的受力情况如图115-图116所示。The stress and deformation of the main jibbolts and the the knuckle jib bolts are shown in Figure 115 - Figure 116.主臂架-副臂架铰点轴杆的应力最大值约为19.1Mpa，中枢-主臂架铰点轴杆的应力最大值约为47.1Mpa，都不大。The maximum Mises stress in the knucklejibboltsare about 19.1Mpa, and themaximum Mises stress in the main jib bolts are about 47.1Mpa.图115主臂架-副臂架铰点轴杆Mises应力云图The Mises stress of the the knuckle jib bolts图116中枢-主臂架铰点轴杆Mises应力云图The Mises stress of the axis of the main jib bolts5.4工况三Case 35.4.1 整体受力和变形情况Overall stress and deformation工况三的整体受力和变形情况如图117-图118所示。The stress and deformation of case 1 are shown in Figure 117 - Figure 118.由应力云图可见，应力大值分布在臂架连接部、油缸与吊臂铰点、主臂架顶底板、中枢后部等位置。应力的最大值出现在中枢铰点附近，其Mises应力约为152.4Mpa。As the stress contour shows, the big values of the stress are distributed in the following parts: the hinge parts of the jib, the hinge parts of the jib cylinder, the top and bottom plate of the main jib, and the rear part of the king structure.The maximum stress appears in the hingeof the king structure to the main jib, the Mises stress is about 152.4Mpa.变形量以副臂架最大，其大小约为18.5cm，其中X方向的最大变形量约为5.1cm，Z方向的变形量约为17.9cm。The maximum deformation of the knuckle jib is about 18.5cm, the X-direction of the maximum deformation is about 5.1cm, and the Z direction of deformation is about 17.9cm.（a）Mises应力The Mises stress（b）大主应力The Max principal stress图117应力云图The stress contour（a）变形大小云图The magniture of deformation（b）X方向变形The U1 ( x ) deformation（c）Z方向变形The U3 ( z ) deformation图118变形云图The coutour of the deformation5.4.2 油缸臂轴力The stress of the main jib cylinder and the knuckle jib cylinder上、下油缸臂的受力情况如图119所示。The stress of the main jib cylinder and the knuckle jib cylinder are shown in Figure 119.模型中杆单元采用的是直径0.14m的实心圆杆，换算成轴力后的上油缸臂为97.91t，下油缸臂为57.54t。The diameter of the cylinder is 0.14m, and the axial force is 97.91t for the knuckle jib cylinder, and 57.54t for the main jib cylinder.图119上、下油缸臂Mises应力云图The Mises stress contour of the main jib cylinder and the knuckle jib cylinder5.4.3 支座反力Reaction force对于有限元模型的中枢底部截面，得到的主要反力大小为：As to the finite element of the king structure, the major forces are:力矩：226.73tmMoment: 226.73tm竖向反力：21.45tVertical reaction force: 21.45t水平反力：0Vertical reaction force: 0t5.4.4 副臂架The knuckle jib副臂架的受力情况如图120-图123所示。The stress of the knuckle jib are shown in Figure 120 - Figure 123.副臂架的最大Mises应力约为152.4MPa，在上油缸臂上铰点外侧。The maximum stress appears at the outer place of the hinge to the knuckle jib, and the Mises stress is about 152.4Mpa.在绞盘（吊点）处，当底板加强以后，应力大值将出现在铰点邻近区域。When the base plate is strengthened, thebig stress appears at the nearby place of the winch (the lifting point).在上油缸臂上铰点处，当底板加强以后，应力大值将出现在铰点邻近区域。When the base plate is strengthened, thebig stress appears at the nearby place of the hinge.副臂架与主臂架铰点处耳板的应力较小。The stress in the bracket of the main jib and the knuckle jib is small.图120副臂架应力云图The stress contour of the knuckle jib图121绞盘（吊点）处应力云图The stress contour of the winch (the lifting point)图122上油缸臂上铰点处应力云图The stress contour of the hinge of the knuckle jib cylinder to the knuckle jib图123主臂架-副臂架铰点处应力云图The stress contour of the hinge of the main jib to the knuckle jib5.4.5 主臂架The main jib主臂架的受力情况如图124-图128所示。The stress of the main jib are shown in Figure 124 - Figure 128.主臂架的最大应力约为147.0MPa，在左侧端部加强区域与普通构造相接处。The maximum stress appears atthejoint of the strengthened left end and the commonjib, and the Mises stress is about 147.0 Mpa.在上油缸臂下铰点及下油缸臂上铰点，当底板加强以后，应力大值出现在铰点邻近区域。When the base plate is strengthened, thebig stress appears at the nearby place of the hinge, both the main jib cylinder andthe knuckle jib cylinder.中枢与主臂架铰点、主臂架与副臂架铰点处的应力均较小。Thestress at the hinge of the knuckle jib cylinder to the main jib, and the hinge of the main jib cylinder to the main jib is relatively small.图124主臂架应力云图The stress contour of the main jib图125上油缸臂下铰点处应力云图The stress contour of the hinge of the knuckle jib cylinder to the main jib图126下油缸臂上铰点处应力云图The stress contour of the hinge of the main jib cylinder to the main jib图127主臂架-副臂架铰点处应力云图The stress contour of the hinge of the main jib to the knuckle jib图128中枢-主臂架铰点处应力云图The stress contour of the hinge of the main jib to the king structure5.4.6 中枢The king structure中枢部分的受力和变形情况如图129-图130所示。The stress of the king structure are shown in Figure 129 - Figure 130.应力最大值约为148.2Mpa（应力集中），变形量的最大值约为1.4mm。The maximum Mises stress is 148.2Mpa (stress concentration), and the maximum deformation is about 1.4mm.图129中枢应力云图The stress contour of the king structure图130中枢变形云图The coutour of the king structure deformation5.4.7 铰点轴杆The bolts主臂架-副臂架铰点轴杆、中枢-主臂架铰点轴杆的受力情况如图131-图132所示。The stress and deformation of the main jibbolts and the the knuckle jib bolts are shown in Figure 131 - Figure 132.主臂架-副臂架铰点轴杆的应力最大值约为38.8Mpa，中枢-主臂架铰点轴杆的应力最大值约为43.1Mpa，都不大。The maximum Mises stress in the knucklejibboltsare about 38.8Mpa, and themaximum Mises stress in the main jib bolts are about 43.1Mpa.图131主臂架-副臂架铰点轴杆Mises应力云图The Mises stress of the the knuckle jib bolts图132中枢-主臂架铰点轴杆Mises应力云图The Mises stress of the axis of the main jib bolts5.4 工况四Case 45.4.1 整体受力和变形情况Overall stress and deformation工况四的整体受力和变形情况如图133-图134所示。The stress and deformation of case 1 are shown in Figure 133 - Figure 134.由应力云图可见，应力大值分布在臂架连接部、油缸与吊臂铰点、主臂架顶底板、中枢后部等位置。应力的最大值出现在中枢铰点附近，其Mises应力约为194.3Mpa。As the stress contour shows, the big values of the stress are distributed in the following parts: the hinge parts of the jib, the hinge parts of the jib cylinder, the top and bottom plate of the main jib, and the rear part of the king structure.The maximum stress appears in the hingeof the king structure to the main jib, the Mises stress is about 194.3Mpa.变形量以副臂架最大，其大小约为20.3cm，其中X方向的最大变形量约为5.0cm，Z方向的变形量约为19.6cm。The maximum deformation of the knuckle jib is about 20.3cm, the X-direction of the maximum deformation is about 5.0cm, and the Z direction of deformation is about 19.6cm.（a）Mises应力The Mises stress（b）大主应力The Max principal stress图133应力云图The stress contour（a）变形大小云图The magniture of deformation（b）X方向变形The U1 ( x ) deformation（c）Z方向变形The U3 ( z ) deformation图134变形云图The coutour of the deformation5.4.2 油缸臂轴力The stress of the main jib cylinder and the knuckle jib cylinder上、下油缸臂的受力情况如图135所示。The stress of the main jib cylinder and the knuckle jib cylinder are shown in Figure 135.模型中杆单元采用的是直径0.14m的实心圆杆，换算成轴力后的上油缸臂为100.54t，下油缸臂为57.30t。The diameter of the cylinder is 0.14m, and the axial force is 100.54t for the knuckle jib cylinder, and 57.30t for the main jib cylinder.图135上、下油缸臂Mises应力云图The Mises stress contour of the main jib cylinder and the knuckle jib cylinder5.4.3 支座反力Reaction force对于有限元模型的中枢底部截面，得到的主要反力大小为：As to the finite element of the king structure, the major forces are:力矩：282.22tmMoment: 282.22tm竖向反力：21.18tVertical reaction force: 21.18t水平反力：0Vertical reaction force: 0t5.4.4 副臂架The knuckle jib副臂架的受力情况如图136-图139所示。The stress of the knuckle jib are shown in Figure 136 - Figure 139.副臂架的最大Mises应力约为153.9MPa，在上油缸臂上铰点外侧。The maximum stress appears at the outer place of the hinge to the knuckle jib, and the Mises stress is about 153.9Mpa.在绞盘（吊点）处，当底板加强以后，应力大值将出现在铰点邻近区域。When the base plate is strengthened, thebig stress appears at the nearby place of the winch (the lifting point).在上油缸臂上铰点处，当底板加强以后，应力大值将出现在铰点邻近区域。When the base plate is strengthened, thebig stress appears at the nearby place of the hinge.副臂架与主臂架铰点处耳板的应力较小。The stress in the bracket of the main jib and the knuckle jib is small.图136副臂架应力云图The stress contour of the knuckle jib图137绞盘（吊点）处应力云图The stress contour of the winch (the lifting point)图138上油缸臂上铰点处应力云图The stress contour of the hinge of the knuckle jib cylinder to the knuckle jib图139主臂架-副臂架铰点处应力云图The stress contour of the hinge of the main jib to the knuckle jib5.4.5 主臂架The main jib主臂架的受力情况如图140-图144所示。The stress of the main jib are shown in Figure 140 - Figure 144.主臂架的最大应力约为169.8MPa，在左侧端部加强区域与普通构造相接处。The maximum stress appears atthejoint of the strengthened left end and the commonjib, and the Mises stress is about 169.8 Mpa.在上油缸臂下铰点及下油缸臂上铰点，当底板加强以后，应力大值出现在铰点邻近区域。When the base plate is strengthened, thebig stress appears at the nearby place of the hinge, both the main jib cylinder andthe knuckle jib cylinder.中枢与主臂架铰点、主臂架与副臂架铰点处的应力均较小。Thestress at the hinge of the knuckle jib cylinder to the main jib, and the hinge of the main jib cylinder to the main jib is relatively small.图140主臂架应力云图The stress contour of the main jib图141上油缸臂下铰点处应力云图The stress contour of the hinge of the knuckle jib cylinder to the main jib图142下油缸臂上铰点处应力云图The stress contour of the hinge of the main jib cylinder to the main jib图143主臂架-副臂架铰点处应力云图The stress contour of the hinge of the main jib to the knuckle jib图144中枢-主臂架铰点处应力云图The stress contour of the hinge of the main jib to the king structure5.4.6 中枢The king structure中枢部分的受力和变形情况如图145-图146所示。The stress of the king structure are shown in Figure 145 - Figure 146.应力最大值约为194.3Mpa（应力集中），变形量的最大值约为2.4mm。The maximum Mises stress is 194.3Mpa (stress concentration), and the maximum deformation is about 2.4mm.图145中枢应力云图The stress contour of the king structure图146中枢变形云图The coutour of the king structure deformation5.4.7 铰点轴杆The bolts主臂架-副臂架铰点轴杆、中枢-主臂架铰点轴杆的受力情况如图147-图148所示。The stress and deformation of the main jibbolts and the the knuckle jib bolts are shown in Figure 147 - Figure 148.主臂架-副臂架铰点轴杆的应力最大值约为50.6Mpa，中枢-主臂架铰点轴杆的应力最大值约为44.5Mpa，都不大。The maximum Mises stress in the knucklejibboltsare about 50.6Mpa, and themaximum Mises stress in the main jib bolts are about 44.5Mpa.图147主臂架-副臂架铰点轴杆Mises应力云图The Mises stress of the the knuckle jib bolts图148中枢-主臂架铰点轴杆Mises应力云图The Mises stress of the axis of the main jib bolts5.5 汇总Summary5.5.1 上油缸臂轴力The axial force of the knuckle jib cylinder上油缸臂轴力情况见表12。The axial forces of the knuckle jib cylinder are show