CM8060门机轮压稳定性计算书.doc

cm8060门机轮压稳定性计算书calculation sheet for stabilityand wheel load计算design： 审核check ： ymc2006.06目录 index1总体性能参数 main technical parameters2各部分重量 、重心位置计算table of weight and gravity center3风载荷计算 wind load calculation4抗倾覆稳定性校核 check for stablity5支承反力与轮压计算calculation of wheel load and corner load1.总体性能参数 main spec1.1.起重量:hoist capacity主钩80t40mmain hook40t56m副钩15t60maux.hook1.2.起升高度:lift height主吊钩:轨面以上50mmain hookabove rail轨面以下5mbelow rail副吊钩:轨面以上50maux. hookabove rail轨面以下5mbelow rail1.3.变幅幅度:luffing radius主钩最小幅度:20mmain hookmin. outreach最大幅度:56mmax. outreach副钩最小幅度:23maux.hookmin. outreach最大幅度:60mmax. outreach1.4.机构速度:主钩起升:0.66m/minworking speedhoist for main hook副钩起升:220m/minhoist for aux. hook变幅机构:15m/minluffing speed旋转机构:0.33rpmslewing speed行走机构:330m/mingantry speed1.5.轨距 rail gauge10.5m 基距: wheel base15m1.6.门架净高: portal clearance8m1.7.机房尾径: tail radius0 pass4.2.2工况2:满载向前侧轨倾覆40t-56mcase 2:full load overturning along one railsm=0.95mg-1.5mq3 =0.95*g*l-1.5*pq3*l872.1tmif sm0 pass4.2.3工况3:满载向前侧轨倾覆,80t-40mcase 3:full load overturning along one rail附加变幅水平载荷mh及风载荷mw(风沿臂架方向)with additional swaying load mh and wind load (wind along jib)sm=0.95mg-1.35mq1-mh-mw =0.95*g*l-1.35*pq1*l-ph*h-mw307.4tmif sm0 pass4.2.4工况4:满载向前侧轨倾覆,40t-56mcase 4:full load overturning along one rail附加变幅水平载荷mh及风载荷mw(风沿臂架方向)with additional swaying load mh and wind load (wind along jib)sm=0.95mg-1.35mq3-mh-mw =0.95*g*l-1.35*pq3*l-ph*h-mw959.6tmif sm0 pass4.2.5工况5:非工作状态,40m幅度,向后侧轨倾覆,case 5:non working wind load, 40m radius, overturning along back rail(风沿臂架方向向后吹)wind blowing backwordsm=0.95mg-1.1mw =0.95*g*l-1.1*mw2140.7tmif sm0 pass4.2.7工况7:满载,向垂直轨道方向边倾覆,80t-40m附加大车水平力矩mh(风沿轨道方向吹, 臂架垂直轨道)整机重 g:772.3t大车起制动加速度 a:取6秒加速时间0.083m/s*s整机重心高度 h=23.60msm=0.95mg-1.35mq-mh-mw =0.95*g*l-1.35*pq*l-g*a*h-mw1994.9tmif sm0 合格4.2.8工况8:满载,向垂直轨道方向边倾覆,40t-56m附加大车水平力矩mh(风沿轨道方向吹, 臂架垂直轨道)整机重 g:731.5t大车起制动加速度 a:0.0833m/s*s满载45t-13m,整机重心高度 h=20.10msm=0.95mg-1.35mq-mh-mw =0.95*g*l-1.35*pq*l-g*a*h-mw2502.02tmif sm0 合格4.2.9工况9:空载最小幅度,向垂直轨道方向边倾覆,附加大车水平力矩mh(风沿轨道方向吹, 臂架垂直轨道)整机重 g:702.0t大车起制动加速度 a:0.0833m/s*s整机重心高度 h=19.41msm=0.95mg-mh-mw =0.95*g*l-g*a*h-mw3323.87tmif sm0 合格5支承反力与轮压计算. calculation of wheel load and corner loadx5.1计算假设: supposing铰接支架,柱式回转支承bching frame, cylindrical bearingy轴为垂直轨道方向 axle perpendicular to railyx轴为平行于轨道方向axle along railad5.2支承反力计算公式: calculation formular非回转部分自重 dl of non slewing part g1=252.9t回转部分自重(含吊重) dl for slewing (with ll)g2=t回转部分自重(不含吊重)dl for slewing (without ll)g3=449.2t轨距rail gaugel=10.5m基距wheel baseb=15m臂架与x轴间夹角 angle between jib and x axlea= 回转部分重力距 moment caused by dl of slewing partme=tm水平惯性力矩 horizontal inertial forcemh= ph*htm吊重平均较高高度 average lift heighth=20m工作最大偏摆角 max. working sway angle of the load4deg风阻力矩wind loadmw=tm回转部分组合力距 combined moment of slewing partm=me+mh+mwtm回转合力距在x轴的分力矩 combined moment along x axlemx=m*sin(a)tm回转合力距在y轴的分力矩combined moment along x axlemy=m*cos(a)tm整机各支点支反力: corner load va=g1/4+g2*(1-2*t/l)/4+mx*(1-2*t/l)/(2*b)-my/(2*l)tvb=g1/4+g2*(1-2*t/l)/4+mx*(1-2*t/l)/(2*b)+my/(2*l)tvc=g1/4+g2*(1-2*t/l)/4-mx*(1-2*t/l)/(2*b)+my/(2*l)tvd=g1/4+g2*(1-2*t/l)/4-mx*(1-2*t/l)/(2*b)-my/(2*l)tdl=dead load; ll=live loadmax wheel load41.405.3各工况支反力,轮压 calculation of corner load and wheel load5.3.1满载,臂架处于最不利位置80t-40mfull load, jib in the most unfaverabl angle此时的d点压力最大,令dvb/da=0,解得a=arctg(l+2*t)/b)时vb达到最大值jib perpendicular to the portal diagonal a=arctg(l+2*t)/b) the corner load will be max.臂架与x轴间夹角 angle between jib and x axlea=arctg(l+2*t)/b)35 回转部分组合力距 combined moment of slewing partme=2258.5tm风阻力矩wind loadmw=125.4tm回转部分组合力距 combined moment of slewing partm=me+mh+mw2376.7tm回转合力距在x轴的分力矩 combined moment along x axlemx=m*sin(a)1362.9tm回转合力距在y轴的分力矩combined moment along x axlemy=m*cos(a)1947.0tm整机各支点支反力: corner load va=g1/4+g2/4+mx/(2*b)-my/(2*l)=145.8tvb=g1/4+g2/4+mx/(2*b)+my/(2*l)=331.2tvc=g1/4+g2/4-mx/(2*b)+my/(2*l)=240tvd=g1/4+g2/4-mx/(2*b)-my/(2*l)=54.9t整机各支点支反力: corner load pa=va/wheel no. per corner=18.22tpb=vb/wheel no. per corner=41.40tpc=vc/wheel no. per corner=30.04tpd=vd/wheel no. per corner=6.87t5.3.2满载,臂架处于最不利位置40t-56mfull load, jib in the most unfaverabl angle此时d点压力最大,令dvb/da=0,解得a=arctg(l+2*t)/b)时vb达到最大值jib perpendicular to the portal diagonal a=arctg(l+2*t)/b) the corner load will be max.臂架与x轴间夹角 angle between jib and x axlea=arctg(l+2*t)/b)35.0 回转部分组合力距 combined moment of slewing partme=1747.0tm风阻力矩wind loadmw=64.4tm回转部分组合力距 combined moment of slewing partm=me+mh+mw1867.3tm回转合力距在x轴的分力矩 combined moment along x axlemx=m*sin(a)1070.8tm回转合力距在y轴的分力矩combined moment along x axlemy=m*cos(a)1529.7tm整机各支点支反力: corner load va=g1/4+g2/4+mx/(2*b)-my/(2*l)=145.72tvb=g1/4+g2/4+