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1)  Multiple crack of gear teeth
轮齿裂缝
2)  gear breaking
齿轮断裂
1.
Fault analysis of gear breaking in ARH800E Roots blower;
ARH800E罗茨鼓风机齿轮断裂故障分析
3)  gear crack
齿轮裂纹
1.
Effect of friction coefficient on stress field intensity of gear crack
摩擦系数对齿轮裂纹应力场强的影响
2.
The duffing oscillator detection approach and frequency spectrum method are compared through analyzing the AE signal of gear crack,the result indicates duffing ocillators detecting method has superiority in detection precision and antinoise ability.
分别采用频谱分析法和混沌弱信号检测法对齿轮裂纹声发射实验数据进行检测,结果表明混沌弱信号检测法具有更高的检测精度和更强的抗干扰能力。
4)  gear crack fault
齿轮裂纹故障
1.
To extract the gear crack fault weak feature of locomotive running gear box on complex background,a new method of ensemble empirical mode decomposition(EEMD) and 1.
针对复杂背景下机车走行部齿轮箱齿轮裂纹故障微弱特征的提取问题,提出了总体平均经验模式分解(EEMD)与1。
5)  toe joint
齿缝
1.
Study is made on tensile strength in bending along straight joint and toe joint of sandwich composite wall masonry with sintered decorative porous brick by 48 test specimens laying with four strength grades of cement mortar.
通过4个强度等级水泥砂浆砌筑的48个试件,对烧结装饰多孔砖夹芯复合墙砌体沿通缝和沿齿缝2种弯曲抗拉强度进行了研究。
6)  gear tooth
齿轮轮齿
1.
The analysis and protecting measures on the questions of drive gear tooth fracture;
传动齿轮轮齿断裂问题的分析及防护措施
2.
The fracture problem of gear tooth is discussed based on engineering example in this paper.
本文从工程实例出发,讨论了齿轮轮齿断裂的形式,针对推土机从动齿轮轮齿的断裂问题,提出了实用的修复新方法,并通过工程实践证明了其有效性。
补充资料:齿轮轮齿渐开线、螺栓、弹簧autolsp源程序
 

一、齿轮轮齿渐开渐开线


(defun c:gear(/)
(
 setq
p0 (getpoint"输入齿轮中心p0: ")
m  (getreal"输入齿轮模数M: ")
z  (getint"输入齿轮齿数Z: ")
ha 1
c 0.25
a (/ pi 9)
ra(/ (* (+ z (+ ha ha)) m) 2)
rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
r(/ ( * m z) 2)
rb ( * r (cos a))
ri rb
ang 0
g (polar p0 ang rb)
)
(command "circle" p0 ra)
(command "circle" p0 rf)
(command "circle" p0 r)
(command "line"  g)
 
(while (< ri ra)
(setq
ang ( + ang(/ pi 360))
ri ( / rb (cos ang))
cta ( - (/ (sin ang) (cos ang)) ang)
g(polar p0 cta ri)
)


(command g)
)
(command )
)



二、螺旋源程序


(defun errMsg (s)
  (if (/= s "function cancelled") (princ (strcat "\nError: " s)))
     ; 当命令执行时出现错误
  (setvar "cmdecho" ocmdold)                                      ; 例如用户按下了CTRL + C
  (setvar "osmode" osmold)
  (setq *error* olderr)   ; 恢复旧的错误处理
  (princ)
)


(defun c:3Dthread (/ radouter threadpitch threadlength threadangle
                   ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
   ;-------------------------------------------------------------------
   ; 获取公制外径大小、螺距总长
   ; 然后计算一系列几何点
   ; 并且关闭对象捕捉、命令回显
   ;-------------------------------------------------------------------
   (setq 4H (list 0.0015 0.002 0.002 0.0025 0.003 0.0035 0.004 0.005 0.006 0.007 0.008 0.009 0.010))  
   (setq 5H (list 0.002 0.0025 0.003 0.004 0.0045 0.0055 0.0065 0.0075 0.009 0.010 0.0115 0.0125 0.0135))  
   (setq 6H (list 0.003 0.004 0.0045 0.0055 0.0065 0.008 0.0095 0.011 0.0125 0.0145 0.016 0.018 0.020))  

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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