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本帖最后由 青华工作室 于 2012-7-28 17:02 编辑 8 j5 r; I0 C8 c
4 ]" Y; {2 X- E2 X" N; V" W- H0 h9 T
Active_coils 11 中间螺旋卷数
3 i# _0 L4 ~+ \- ^Closed_height Wire_dia+0.01 考虑最后卷的间隙
5 d) j% w* n7 j, uDir 1 改变螺旋旋转方向 5 f3 ^, p |& Z5 u2 J
Free_length 7 弹簧自由长度
9 [& r$ o2 B% K5 E5 YOD 2.19 弹簧外直径
- C f' r+ y& j S2 ^Total_coils 13 螺旋总圈数6 l4 f8 m( [1 }6 ]( f+ }6 X; Y
Wire_dia 0.095 弹簧线径(钢丝直径)3 D) x5 h: U, q$ {
angle_offset (Total_coils-trnc(Total_coils))*360+ {7 h0 M- o* N! x; b- [
angle_offset_init (Total_coils-Active_coils)/2*3605 i3 U4 q3 V; _$ [+ P
exp (pitch/Closed_height*(Total_coils-Active_coils)/2)+ j4 c4 M& b* h/ V0 I) M9 S; [' E
height Free_length-Wire_dia-Closed_height*2' i$ w' O$ ~7 U- P2 z! c R: ]
p0 Wire_dia) P8 y+ t. a7 @9 \% z0 Z+ |
p1 01 x; q6 C7 O6 w" _2 q0 [
p22 Wire_dia ' l. L6 t- Y- C& b( O
p23 0
, o+ l9 R8 J- g' Y- I6 Npitch height/Active_coils
c$ \6 a- R. x' S' |; `& PRadius (OD-Wire_dia)/2
: S4 i" V' K0 s* [& PT 18 h$ s& b8 ?" y& O) k# ?
xt cos(Dir*360*Active_coils*t+angle_offset_init)*radius5 t/ {, U+ U* S
xt1 cos(Dir*360*(Total_coils-Active_coils)/2*t)*radius+ Q5 w5 V! L- ]
xt2 cos(-Dir*360*(Total_coils-Active_coils)/2*t+angle_offset)*radius6 [; \/ B9 m' p- L
yt sin(Dir*360*Active_coils*t+angle_offset_init)*radius
& X g6 @) _/ e& i% u4 hyt1 sin(Dir*360*(Total_coils-Active_coils)/2*t)*radius
. j9 Q; x6 t1 \9 v9 V& _ |yt2 sin(-Dir*360*(Total_coils-Active_coils)/2*t+angle_offset)*radius# Y4 P0 |& E; V% o9 x' D' Z$ W
zt t*height+Closed_height+Wire_dia/2
% |4 Q9 P! d8 @1 d P9 g: vzt1 (t^(exp)*Closed_height)+Wire_dia/2
2 O" t, D' k7 r; Fzt2 (-t^(exp)*Closed_height)+height+Closed_height*2+Wire_dia/2 |
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发表于 2012-7-28 17:00
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