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本帖最后由 青华工作室 于 2012-7-28 17:02 编辑
, y( N% _7 o) |" o( J+ d4 U7 Y* X
Active_coils 11 中间螺旋卷数" Y# V0 n5 x* h
Closed_height Wire_dia+0.01 考虑最后卷的间隙# p, `# H: p' E( J- y6 a, Y
Dir 1 改变螺旋旋转方向 * \; x, @# o5 b, O, ` c% o5 q
Free_length 7 弹簧自由长度4 o8 P# K1 c! r: }! ~
OD 2.19 弹簧外直径% ]6 R8 L2 H2 w, V5 l
Total_coils 13 螺旋总圈数$ _: w. m% M: F/ P6 r* b
Wire_dia 0.095 弹簧线径(钢丝直径)0 J) K! L/ n- t
angle_offset (Total_coils-trnc(Total_coils))*3600 Y0 [' V0 a/ I' X* h; t
angle_offset_init (Total_coils-Active_coils)/2*360
6 b7 ` ^8 U2 ~+ ^8 rexp (pitch/Closed_height*(Total_coils-Active_coils)/2)9 G6 b! {# G: \) p1 _
height Free_length-Wire_dia-Closed_height*2/ I' g# ?9 x" `1 B5 d2 |' w
p0 Wire_dia
8 `9 o6 J" s( C, Z% i' i3 dp1 0
; _# z+ f4 q; @8 qp22 Wire_dia ( N+ F) P0 m/ n' @
p23 0! H4 `0 d$ B% M: u& p
pitch height/Active_coils4 M- f% a8 [ b6 u8 R
Radius (OD-Wire_dia)/24 y; J) M' x7 K6 j8 m
T 1# Z& o2 ^+ T, \5 B& C3 W% C
xt cos(Dir*360*Active_coils*t+angle_offset_init)*radius
3 u1 x7 U+ g$ p1 nxt1 cos(Dir*360*(Total_coils-Active_coils)/2*t)*radius
5 ^0 G/ C0 C) q$ _xt2 cos(-Dir*360*(Total_coils-Active_coils)/2*t+angle_offset)*radius
7 t2 i8 w5 U& u6 E- M: [4 d) O8 @yt sin(Dir*360*Active_coils*t+angle_offset_init)*radius5 ]4 H. u# I) B4 B# X
yt1 sin(Dir*360*(Total_coils-Active_coils)/2*t)*radius
I/ F9 B: ^$ A' v. uyt2 sin(-Dir*360*(Total_coils-Active_coils)/2*t+angle_offset)*radius
8 q( N7 P" \9 u+ |zt t*height+Closed_height+Wire_dia/2- ^0 m; R+ `7 d
zt1 (t^(exp)*Closed_height)+Wire_dia/2
8 }. F0 r! w) ^' e3 g4 rzt2 (-t^(exp)*Closed_height)+height+Closed_height*2+Wire_dia/2 |
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