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原代码
在CAD中的LISP进行编辑。3 [; k) T0 l3 D3 ]& E7 N/ ~4 U
3 t d( y% ]; k0 |$ H' A5 s `(defun sqr (xx) (* xx xx))
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/ Y7 T5 ?3 q7 H( E( @(defun p1 () ;计算l2连杆靠近曲柄的联接点坐标0 D* B( p$ t2 F) w, V% s
(setq deg (/ (* deg pi) 180))# @3 w9 r3 h; Z0 G) F
(setq x1 (* r (cos deg)))/ g3 j% G ~# l
(setq y1 (* r (sin deg)))0 U+ S* d% G$ q0 d- M
(setq po1 (list x1 y1))
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! _4 `( _* S* m" M* u(defun p3 () ;计算l4连杆靠近曲柄的联接点坐标
) V; ~+ s0 c' b! O" W; r8 w (setq deg1 (+ deg (/ pi 2)))
6 C) ]! J8 u C# v: l (setq x3 (* r (cos deg1)))8 x# A$ q3 L1 Q( e* g0 }2 f+ d* h
(setq y3 (* r (sin deg1))), A" V8 s7 ~' r
(setq po3 (list x3 y3))+ ~- i& I+ X2 i6 T8 y0 L! @
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(defun p2 () ;计算Y3摇臂与连杆L2的铰接点坐标
: r7 M% b+ ~+ `" a (setq c x5)- K! Z6 z( g$ T6 O3 {6 c. t9 r
(setq a x1)) @* u) `+ A% W2 i) J& J+ m
(setq b y1)2 G# j- K5 K5 t; \, X3 r: N6 o
(setq d y5)
6 a2 `2 s! r4 j7 R (setq e (- (+ (sqr a) (sqr b)) (sqr l)))
# r% h3 V! J S6 @( X# n* J6 ^ (setq f (- (+ (sqr c) (sqr d)) (sqr p)))
3 B. T) ^3 x# S/ S3 v8 [1 X (setq g (+ (* 2 (sqr a)) (- e) f (* -2 c a)))
/ l+ A& G( s% x) \* E (setq h (* 2 (- b d)))
% T2 ^0 G% u+ C (setq i (* 2 (- a c)))
! L c+ q' D& d (setq j (- (sqr a) e))
" m) c5 G2 F. `. u. q7 J+ ^ (setq j1 (* -1 (+ (sqr h) (sqr i))))7 L) ^5 I* \7 R: ~6 E0 }- {; K, l0 f
(setq j2 (- (* 2 b (sqr i)) (* 2 g h)))
% A/ y6 ~% E6 @ r (setq j3 (- (* (sqr i) j) (sqr g))) C' E; E" E' V) B$ T# |4 s
(setq y2 (/ (+ (- j2) (- (sqrt (- (sqr j2) (* 4 j1 j3))))) (* 2 j1)))
- M {4 s+ ]8 D; d |. b (SETQ X2 (+ A (SQRT (+ (SQR A) (- E) (- (SQR Y2)) (* 2 B Y2)))))7 K" Q# Y$ L2 o8 |7 Y7 m
(setq po2 (list x2 y2)). s" y+ [7 e0 C4 B8 N$ _* a/ \
)" ~, Y7 S E3 `/ E
(defun p4 () ;计算Y5摇臂与连杆L4的铰接点坐标2 L' n5 r9 r/ V- x' p2 J$ y
(setq c x6)
( ~+ J5 O7 J" l2 C- w8 h$ D (setq a x3)
9 |+ D3 Q1 m$ k% T9 F6 T0 [& o (setq b y3)8 k! W5 I0 ]& n2 ], e
(setq d y6)
4 R. b$ S k* D7 M! f; \: Y; E1 l (setq e (- (+ (sqr a) (sqr b)) (sqr l)))) I5 z/ i2 F( a8 _$ T
(setq f (- (+ (sqr c) (sqr d)) (sqr p)))
# ~4 H3 a! g. u8 P (setq g (+ (* 2 (sqr a)) (- e) f (* -2 c a)))% P2 V6 Q; n& ^ u7 T
(setq h (* 2 (- b d)))+ }! d2 N6 V: S, n9 q# t
(setq i (* 2 (- a c)))
: P6 o C5 f( ?: C7 E! U (setq j (- (sqr a) e))
2 C( A2 z; z" T$ @! N2 b" @& X0 G (setq j1 (* -1 (+ (sqr h) (sqr i))))
( Z: W1 G/ y; W& C7 ?5 L (setq j2 (- (* 2 b (sqr i)) (* 2 g h)))
4 J$ _% [3 i, `' s1 \5 X4 w: ~6 p' C (setq j3 (- (* (sqr i) j) (sqr g)))
. \/ h) O9 O9 T& |" n (setq y4 (/ (+ (- j2) (+ (sqrt (- (sqr j2) (* 4 j1 j3))))) (* 2 j1)))) h/ z2 Q* u5 P* L+ k, X+ \
(SETQ X4 (- A (SQRT (+ (SQR A) (- E) (- (SQR Y4)) (* 2 B Y4)))))
& w' g" i! Y3 x. ?9 Z0 n (setq po4 (list x4 y4))
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U T& P. I' c) \# s(defun jdl2 () (atan (- y2 y1) (- x2 x1))) ;计算连杆L2的转动角度
7 a: R9 I m, h( J(defun jdy3 () (atan (/ (- y2 y5) (- x2 x5)))) ;计算摇臂Y3的转动角度
- S+ d6 I: o2 \0 b y9 b(defun jdl4 () (atan (- y3 y4) (- x3 x4))) ;计算连杆L4的转动角度
; d8 G" \" |4 q! m6 s(defun jdy5 () (atan (- y4 y6) (- x4 x6))) ;计算摇臂Y5的转动角度& R$ f, P* o& ?
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(defun c:fx ()+ v4 n9 I) q( n* q8 e: s7 E
) ?! j2 l* X3 q8 @ (SETQ qss(GETREAL "\n 演示旋转圈数:"))
% V# @# O; i, }9 @% U; s (SETQ degsetp(GETREAL "\n 角度增量:")). |& \# C x2 _5 M
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(setq pz (getvar "osmode"))
# m! P; a# L$ E9 l3 v( ?0 T( ^* ^ (setvar "osmode" 0)
6 ]: A- f3 g4 \9 D (setq echo (getvar "cmdecho"))
0 e8 Z, \% ~! _ (setvar "CMDECHO" 0) ;保存环境参数 并 设置
* L7 N, w! r L " i7 @* c4 v3 D$ ^
; (setq fff (open "d:\\deg.txt" "w")) ;创建文件 可输出关键点坐标,用于位移、速度、加速度分析, D/ \4 e: K( d
1 B$ M9 `: F" L' y9 @- `" v (setq cs(- (/ (* 360 qss) degsetp) 1) )2 [) ~/ d; H8 u2 d$ R
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(setq r 11.5); m! n0 {/ E' q, X# @) P; {
(setq l 45.5)+ j* N* }( B2 f3 |# x5 x7 y
(setq p 51)* [4 K- s/ N3 p; S
(setq po0 (list 0 0))2 w) K1 M3 E3 a% u S
(setq x5 61.51)
2 }) L" C/ S- ]" e% N5 C) W5 k (setq y5 -27.5)' ~8 ]" B" F- X* V+ v4 y) o
(setq po5 (list 61.51 -27.5))
! n9 K. P* _5 _9 l1 s (setq x6 -61.51)
( J s4 L) o# K. d5 u1 M, y+ l3 x (setq y6 27.5)
+ X4 w2 ?! [ P/ d2 |3 v (setq po6 (list -61.51 27.5)) ;以上是一些固定参数
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(setq deg 0)
7 I+ p' f& t+ E! x8 I (setq deg0 deg)6 W* m+ A7 r: E/ o e& z
(setq rad (/ 180 pi))
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(p1)* d! Z5 G6 ^7 d
(p2) T3 p; K: z; z {" V z9 c- P9 V) k) ]
(p3)
4 E* R% }/ r8 e$ K$ u, K (p4)
. z1 B) e' {& A3 _- H (setq l2jd (jdl2))
$ n# K* C- y: v (setq l4jd (jdl4))
7 }: i9 y+ Y+ q (setq y3jd (jdy3))3 f# d, K1 t5 o7 e( l. m# Z* a
(setq y5jd (jdy5)) ; 计算各块的初始插入参数
4 d3 p3 X7 ?) u0 ]6 S: _
$ t- c. O9 K' \& s, ~ (COMMAND "ERASE" "ALL" "" ) ;删除所有对象,不需删的对象可以设置到其它图层并将其锁定& _4 y8 e& N, f
+ C, A, {) ~: V4 }( p (COMMAND "INSERT" "Q1" po0 "" "" (* rad deg))
$ ~" L# K- v$ k& M0 X (setq xq1 (entget (entlast)))
5 h$ u$ A$ _2 x) n- i. h$ { (command "INSERT" "l2" po1 "" "" (* rad l2jd))
2 P% t6 H3 R* U# [& m+ ^/ |: r; k (setq xL2 (entget (entlast)))7 Z8 z* ?& H0 l1 W
(command "INSERT" "Y3" po5 "" "" (* rad y3jd))8 Z% B; X/ {1 Q# s( m9 c# {, l
(setq xY3 (entget (entlast)))
+ V& [8 A+ W+ s, D (command "INSERT" "l4" po4 "" "" (* rad l4jd))7 D/ X4 j$ q1 ]# h1 ^
(setq xL4 (entget (entlast)))6 r* o* n& A R% J5 R z
(command "INSERT" "Y5" po6 "" "" (* rad Y5jd))
$ R; {" S/ y3 Y( X$ E- w& A (setq xY5 (entget (entlast))) ;插入各初始块,并选取
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(while (>= cs 0)4 _6 ~6 Q+ G4 L+ ]
(setq deg0 (+ deg0 degsetp))
( q; W2 N ?! W# B (setq deg (- deg0))
$ r/ [/ j5 F( Z) f1 A (p1)
5 A$ t& v- A5 \6 T. r8 G( G (p2)
$ m n4 k! o5 \7 p (p3)9 Y, ]0 w! j4 ^2 ~1 P( h( X
(p4)
( s' K0 q8 p( N- I' I9 v (setq l2jd (jdl2))
4 O8 Z& ?( B# W: k _; v E (setq l4jd (jdl4))9 h: |5 L3 D5 _
(setq y3jd (jdy3))4 v9 G4 L9 U' k( {
(setq y5jd (jdy5)) ;计算各块的参数
5 `3 \8 ^+ E( i8 g) k5 [9 b u6 d+ I- b% F7 ]7 h, l
(setq xq1 (subst (cons 50 deg) (assoc 50 xq1) xq1))! h2 s7 w) |# z; }) O
(setq xL2 (subst (list 10 x1 y1) (assoc 10 xL2) xL2))( f3 B* o8 j* {1 |: I
(setq xL2 (subst (cons 50 l2jd) (assoc 50 xL2) xL2))
8 d6 h- P- D3 v7 I3 B9 U" v+ x (setq xy3 (subst (cons 50 Y3jd) (assoc 50 xy3) xy3)), y0 D6 p6 [* o' Y0 W, @
(setq xL4 (subst (list 10 x4 y4) (assoc 10 xL4) xL4))
7 f5 A7 F H/ v W4 f (setq xL4 (subst (cons 50 l4jd) (assoc 50 xL4) xL4))4 c- J+ b1 q! N; W) m* S
(setq xy5 (subst (cons 50 y5jd) (assoc 50 xy5) xy5)) ;修改各块参数8 f. _3 k/ L' L2 Q; Z2 A
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; (setq yyy5 (* y5jd (/ 180 pi)))
; F% n3 d1 w) y. ^8 e5 b; (setq yyy51(rtos yyy5 2 15))/ q- b- L8 J- B" E
; (princ yyy51 fff)- G( x4 w+ n2 F8 J
; (princ "\n" fff) ;将摇臂夹角写入文件7 Q2 W, M5 q8 G& c+ ~
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(entmod xq1); [* Z: l. x2 o% k" i7 ^! }
(entmod xy3)( d, J) y6 w$ N4 u1 V$ C" B+ n
(entmod xl2)
$ c/ d; ~. j( D0 }$ @1 y (entmod xy5)0 ?% k6 V2 c3 g7 S3 U: H
(entmod xl4) ;将改好的块写入数据库中, o& M- r1 \0 w B. [5 m7 T" J
7 U8 _* `* }4 y! t0 Z* M M (command "DELAY" "0") ;刷新
5 G+ c( r* m1 G# t" X5 Z; n; h& u% f% v8 W: q% h1 {& b; V: F
(setq cs(- cs 1))
# k: y5 k2 M# C: Q: y7 h )
% W- X4 J/ @- ]( ^/ x" v; (close fff) ;关闭文件9 d/ |5 o; b+ s) T' f& a) c, n$ M
(setvar "osmode" pz)# N; S! Z5 \' }3 ]
(setvar "cmdecho" echo) ;恢复设置
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发表于 2008-6-9 20:17
