UC知道英文翻译，给高分
来源：百度知道 编辑：UC知道 时间：2024/06/07 16:32:59
Discussion and failure of welded 42m long box boom.
Xingma has tested Ruukki’s ultra high strength Optim 900 QC steel in welded booms.
The booms are part of the concrete pump vehicle.
Two different booms were made：
39 meter long boom which passed the fatigue test.
42 meter long boom which did not pass the fatigue test—cracked down.
What issues can be done in different way to avoid cracking.
The fourth part (4/5) of the boom has cracked during the fatigue test
The fatigue test is made with vibration and shaking
The fatigue test limit is 3 milj. cycles and this part was cracked down in 1.95 milj. cycles
What is the used stresses or forces?
Calculated
Estimated / Evaluated
Welding engineer and structural engineer studied the current structure
The quality of the welds were evaluated in outside and inside of the box beam
The structure and the place of crack was analyzed
The str
Optim 900QC和**’s繁荣
焊接42m长盒的讨论和失败兴旺.Xingma已经测验Ruukki’s极端高力
量Optim 900QC钢的焊接繁荣.繁荣是部分具体泵车辆.
二不同繁荣是通过疲惫试验的made： 39米长繁荣.不做的42米长繁荣疲惫
把test—cracked传下来.问题所能向被以不同的方式做的
疲惫试验被振动地作和摇动疲惫试验极限是3 milj.循环和这部分向下
在1.95 milj中是破裂的.使什么是使用压力或者武装力量循环吗?
计算估计焊接工程师和结构上工程师研究焊接点的质量
是的当前结构被在外面中评价和盒在里面散发出struct
评价
无价值物质4mm和5mm的力量被测验部分是被劈啪声被向片向破裂的表面被
用分析的扫描电子Mic片给切口拍照和切断的体视镜可能的裂开的理由被分析.焊接品质1/3靠外头带
焊接点的质量画方面是是空洞部分的好里面是图钉焊接
befor
焊接点的几何学能是较好.也一些溅水被发现.焊接例如冷膝盖缺点将影响高应力集中.人们是被在靠近使制品变硬的人w破裂的区域中发现
冷在哪里膝盖影响高应力集中的焊接点斑点.使最
大的垂直方向的裂缝疲惫.主要压力.基础镀Optim
900QC.2/3焊接品质
焊接环形口,末端defects.Cold拍击.主要的繁荣的疲惫失败的理由正焊接
缺点.应力集中因素由于焊接点冷膝盖是非常高.
成形被使制品变硬的人将去的使制品变硬的人的赢得.焊接是更容易?C>
不defects!!破裂分析光线striations.Clustered有孔性几个破译在direc中
origins.Ratchet标志稳定劈啪声成长1.向最大主要压力使在垂直方向中平面的劈啪声成长定相.禁止可见beachmarks到期开始//停止劈
啪声成长.这个在疲惫试验中是典型最后破裂2.在45度角中向最大主要压力典型使破裂飞机定相.在疲惫劈啪声到达靠外表面之
前,Beam断裂.
电脑翻译，太不懂了！·！··
Optim 900 QC 和 **'s