机械专业翻译?(专业词汇明确译出、译句通顺正确)

来源:百度知道 编辑:UC知道 时间:2024/05/18 07:42:57
At a stress of ±156.7MPa,the residual stress were found to increase in the first minute of vibration (Fig.11).In the next two vibration intervals (3 and 7min),the residual stresses were found to increase and decrease with no discernible trend.From this result,it may be concluded that time of vibration has no residual stresses.
In the shaft,a spot was welded(using an MIG welding system) at the mid-length between the fixed end the torsion arm (Fig.4).Welding was carried out in a fraction of a second.A 3mm line in the heat-affected zone(HAZ) starting from the weld toe was selected for investigation.Residual stress measurement was carried out at intervals of 0.1mm,i.e.a total of 31 points were measured over a 3mm length.The position of the weld and the measurement line are shown in Fig.4.
The vibration frequency was kept contant at 25Hz and the applied shear stress was ±6.15MPa.The specimen was vibrated at various time intervals(shown in Fig.12).The longitudinal residual stress

在应力± 156.7mpa ,残余应力,发现加在第一分钟振动(图) 。在接下来的两个振动回放( 3秒) ,残余应力发现增加和减少不辨trend.from这一结果,可以得出结论,时间振动没有残余应力。
在井下,一个是现场焊接(用焊制)中的长度之间的固定端扭臂(图) 。焊接进行了用不了一second.a 3mm的线热影响区(热)起焊趾获选investigation.residual应力测量进行了间隔为0.1mm ,字母表共31分,分别测量采用3mm mtee位置焊缝和测量线列图。
振动频率不断含量在25hz和应用剪应力± 6.15mpa.the标本激荡在不同时间间隔(列图) 。纵向残余应力选线测量治疗前,后每步治疗,残余应力下降了约70mpa在头两个振动intervals.clearly ,即使这一小部分外加应力产生显着降低残余应力。随后intervant振动造成很小或根本没有减少残余应力。时间效应被发现是一个微不足道的因素(图) 。
这个轴是点焊同样竖井4.welding进行用不了一second.the测量线和方向测量类似轴4 (图) 。在这个竖井,一个很小的动剪应力( ± 2.95mpa ) applied.keeping频率振动多样( infig.13所示) 。采用3mm线被选定为调查而测量进行每隔0.2mm的,字母表共16点测量采用3mm mtee残余应力试样测就为拉表面纵向残余应力测量之前和之后的每一步治疗,残余应力积载图。
第一分钟振动呈现减少残余应力25-35时,大部分的测量points.a随后振动间隔2分钟显示很少改变残余应力(图) 。
类似前两个槽,一个是现场焊接对固体shaft.the振动治疗进行了不同程度的剪应力(列图) 。在每一个应力水平,轴振分别为1分钟。纵向残余应力的选定线(图) ,测量前后的每一步治疗。
在应力± 4.3mpa ,显着降低残余应力( 25 - 30mpa )观察沿测线(图) 。然而,加中的应用剪应力± 10.5 , ± 22 , ± 28 ± 38mpa没有产生任何进一步裁减。

感觉是工程力学???