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本帖最后由 青华工作室 于 2012-7-28 17:02 编辑 6 ?+ [9 j$ {# `. j/ `
4 { C, k5 U; F% P- ^ NActive_coils 11 中间螺旋卷数7 F4 j4 A" K5 U7 H2 l0 ^) K
Closed_height Wire_dia+0.01 考虑最后卷的间隙
8 v3 b. h/ ^/ W3 `5 gDir 1 改变螺旋旋转方向 * K' ]2 E- `; Y; ~
Free_length 7 弹簧自由长度! G4 m; `4 e( ]- V: G9 d/ a( I
OD 2.19 弹簧外直径
2 J$ T4 b4 L4 u# m+ DTotal_coils 13 螺旋总圈数& X# K4 [. }5 c1 U, P7 p# @
Wire_dia 0.095 弹簧线径(钢丝直径)
2 d- f: I* [7 v5 pangle_offset (Total_coils-trnc(Total_coils))*360) l1 q% j3 {3 t) [9 x
angle_offset_init (Total_coils-Active_coils)/2*360; S( H, k) |% q p+ Y% ]
exp (pitch/Closed_height*(Total_coils-Active_coils)/2)
1 C: b' y. J- e5 Q4 Kheight Free_length-Wire_dia-Closed_height*2( B5 e* v/ w5 v8 V9 J9 T$ b( H' p7 f
p0 Wire_dia9 }5 ]( f4 M- r) \
p1 0' \+ H2 n. T0 K3 t
p22 Wire_dia
2 F2 i1 m) H: Y! v7 Ap23 0
4 I/ R K3 ?5 s5 e4 u6 ppitch height/Active_coils9 E# ]3 t2 P0 z& a! b+ L: X; c
Radius (OD-Wire_dia)/2
* P g" S A" p7 N. B; KT 1: W8 A* y/ J+ E& v
xt cos(Dir*360*Active_coils*t+angle_offset_init)*radius' u& B1 ?( c: ?( {# M) V8 ` Q- c
xt1 cos(Dir*360*(Total_coils-Active_coils)/2*t)*radius
# b! X) @6 {% gxt2 cos(-Dir*360*(Total_coils-Active_coils)/2*t+angle_offset)*radius0 ?9 }; W4 f* k) s4 v! {
yt sin(Dir*360*Active_coils*t+angle_offset_init)*radius! z7 H" a6 V) \- S) t# R
yt1 sin(Dir*360*(Total_coils-Active_coils)/2*t)*radius
3 G1 o% E8 p. z& c; @, ?% gyt2 sin(-Dir*360*(Total_coils-Active_coils)/2*t+angle_offset)*radius
& I4 P0 X3 O. c# o% vzt t*height+Closed_height+Wire_dia/2& m8 Q* k9 W5 j! }* @3 }5 M/ t
zt1 (t^(exp)*Closed_height)+Wire_dia/28 F- Q! m# e. F; J7 f
zt2 (-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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