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原代码
在CAD中的LISP进行编辑。
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(defun sqr (xx) (* xx xx))
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5 f+ E) r+ b: p+ q5 c(defun p1 () ;计算l2连杆靠近曲柄的联接点坐标
5 L; p& V1 l9 Q' c! k+ A7 k (setq deg (/ (* deg pi) 180))- Q3 N) ?' n' o/ H& V9 O @3 B
(setq x1 (* r (cos deg)))
5 A- } ?* }- w. M# i (setq y1 (* r (sin deg))). I5 p% I. ]- z8 e
(setq po1 (list x1 y1))
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(defun p3 () ;计算l4连杆靠近曲柄的联接点坐标
7 r/ {# V* g/ Z6 W (setq deg1 (+ deg (/ pi 2)))
5 I( p$ W, ~/ u. q1 D$ q) F# j/ x (setq x3 (* r (cos deg1)))$ }2 w% _6 x3 b4 Z3 y% K' m
(setq y3 (* r (sin deg1)))
- m+ V* ~3 o/ K9 y (setq po3 (list x3 y3))
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(defun p2 () ;计算Y3摇臂与连杆L2的铰接点坐标" h# X# C- r8 ]/ k5 r) B# j# ^
(setq c x5)9 W) T4 w- b# H% ~- ` w) U
(setq a x1)
4 M+ f. h: i" c (setq b y1)
% ?" T, @" [, ~" u& l (setq d y5)) A1 o' `1 S7 f$ O) g& S. J* X
(setq e (- (+ (sqr a) (sqr b)) (sqr l))) n; _8 C7 _& G9 [( E
(setq f (- (+ (sqr c) (sqr d)) (sqr p)))# J+ P8 i+ y' ?" q
(setq g (+ (* 2 (sqr a)) (- e) f (* -2 c a)))* ?8 {' E: v4 F* f
(setq h (* 2 (- b d))); c' a9 G H! p {! j% W$ h
(setq i (* 2 (- a c)))3 d5 ~, X. o, `( M: m5 o6 P$ Z
(setq j (- (sqr a) e))
# n/ S! J. M- b* ~) \ (setq j1 (* -1 (+ (sqr h) (sqr i))))+ [1 k, ?$ ^! O3 b7 m
(setq j2 (- (* 2 b (sqr i)) (* 2 g h)))
. _. s" R4 h T- w2 g/ | l: s (setq j3 (- (* (sqr i) j) (sqr g)))/ t9 @( C- h N0 L
(setq y2 (/ (+ (- j2) (- (sqrt (- (sqr j2) (* 4 j1 j3))))) (* 2 j1)))4 q* F3 J& S# A' ]3 f* }
(SETQ X2 (+ A (SQRT (+ (SQR A) (- E) (- (SQR Y2)) (* 2 B Y2)))))
. G; I9 u$ O4 I8 E" |& z7 t& Z (setq po2 (list x2 y2))9 G2 `6 r X6 {0 C( G G, g
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(defun p4 () ;计算Y5摇臂与连杆L4的铰接点坐标
9 k! m( t6 e" o: o% w (setq c x6): I) s0 R* C1 ]- X- V' H
(setq a x3)
5 H9 {. m& y! s5 c C (setq b y3)
; _$ z f. A6 \" O, Z' j5 V( F (setq d y6). V2 V2 l! b' E) N- f4 ^" h& s
(setq e (- (+ (sqr a) (sqr b)) (sqr l)))
6 c/ {/ L; S* V( y0 g6 r3 ? (setq f (- (+ (sqr c) (sqr d)) (sqr p)))
/ y& N& t, M0 G' ^% P (setq g (+ (* 2 (sqr a)) (- e) f (* -2 c a)))& n/ U! X4 S, @6 ~3 | ~
(setq h (* 2 (- b d)))' B) N8 X: x6 x8 V
(setq i (* 2 (- a c)))/ f2 ^$ M% E" l8 R
(setq j (- (sqr a) e))
- f c }6 Q, b, \, d4 T (setq j1 (* -1 (+ (sqr h) (sqr i))))
! A/ a0 m3 ?: D# o7 k (setq j2 (- (* 2 b (sqr i)) (* 2 g h)))
5 z* y9 u' G7 P" c& M (setq j3 (- (* (sqr i) j) (sqr g)))& j; ?; a8 U5 q9 z8 s0 s! Y
(setq y4 (/ (+ (- j2) (+ (sqrt (- (sqr j2) (* 4 j1 j3))))) (* 2 j1)))
5 W# C% h3 V+ G (SETQ X4 (- A (SQRT (+ (SQR A) (- E) (- (SQR Y4)) (* 2 B Y4)))))
. W5 B* }, d( \1 v (setq po4 (list x4 y4))
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, u* S8 v) @4 ]" G& J$ c6 y(defun jdl2 () (atan (- y2 y1) (- x2 x1))) ;计算连杆L2的转动角度* v. Q& a( p5 C3 b
(defun jdy3 () (atan (/ (- y2 y5) (- x2 x5)))) ;计算摇臂Y3的转动角度4 Y4 o }- h# {9 f4 P, x$ D0 z: G
(defun jdl4 () (atan (- y3 y4) (- x3 x4))) ;计算连杆L4的转动角度% r d; _) x- F' t4 E
(defun jdy5 () (atan (- y4 y6) (- x4 x6))) ;计算摇臂Y5的转动角度) V4 H' l# E7 Z* V& K! r
+ w& _+ A2 {# |1 J(defun c:fx ()
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: O4 w+ J1 G3 n& F# L (SETQ qss(GETREAL "\n 演示旋转圈数:"))' W3 I ?$ M8 n# p
(SETQ degsetp(GETREAL "\n 角度增量:"))
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' g8 _+ E! V. Z3 S5 M" ]3 G" p (setq pz (getvar "osmode"))+ x# U r5 t8 ^5 T4 m5 A( t' X& X7 H, o
(setvar "osmode" 0) / y4 ?$ H0 T0 H/ Q7 {
(setq echo (getvar "cmdecho"))
) e3 a2 m3 P/ y p9 t+ O (setvar "CMDECHO" 0) ;保存环境参数 并 设置' H3 I0 ^, P( e, {6 C* ^! A& C
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; (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
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& R. p3 {3 B- m/ B- l( U (setq cs(- (/ (* 360 qss) degsetp) 1) )7 I9 r" L6 E" z. c% w( m
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(setq r 11.5)3 D X( E: j0 Y& `$ I
(setq l 45.5)
* ^% e1 H) s6 i& d% U (setq p 51); A& m; v9 a. {( Y
(setq po0 (list 0 0))
[7 x2 h9 C: Q8 c8 k (setq x5 61.51)0 Y* B+ L+ I9 p
(setq y5 -27.5)
G: x% T4 Q9 |# W2 t0 e. G (setq po5 (list 61.51 -27.5))
/ g3 t% c" k4 Y (setq x6 -61.51)
6 y- x8 F# h: n& @, T (setq y6 27.5)1 J- e5 [2 x2 L0 P* V
(setq po6 (list -61.51 27.5)) ;以上是一些固定参数
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(setq deg 0): E. k. M9 Q- t0 B P; K% E
(setq deg0 deg)
7 c" d+ I9 w9 K+ I (setq rad (/ 180 pi))
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1 c6 E0 r! [2 P0 N (p1)
1 c" J# J) }( f |. _* l* C (p2)( M7 G( X, F4 ?' D* Z( j ^
(p3)
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(setq l2jd (jdl2)), i/ m& ^- [/ C: q
(setq l4jd (jdl4))8 \* s- U$ U5 d
(setq y3jd (jdy3))
' G$ \9 l! u: B! N3 u5 |- N4 u (setq y5jd (jdy5)) ; 计算各块的初始插入参数9 v, F" R+ G) g5 T
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(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! Q; c( K5 [! ~3 O. i! J6 H9 e2 Y
5 e0 U( v* @+ W, d' E9 i% Z (COMMAND "INSERT" "Q1" po0 "" "" (* rad deg)): |/ p# y/ O$ D( A% B: h( ^
(setq xq1 (entget (entlast))); u0 y% [* b; s. o9 R
(command "INSERT" "l2" po1 "" "" (* rad l2jd))+ _( y" C/ M& Q0 Q. d* I4 n& \
(setq xL2 (entget (entlast)))7 [: L6 |% a5 w& ?- f
(command "INSERT" "Y3" po5 "" "" (* rad y3jd))7 ]! g3 Q5 ]! i2 p
(setq xY3 (entget (entlast)))
. N: H+ D& w% x: v5 _1 l! t5 p! c (command "INSERT" "l4" po4 "" "" (* rad l4jd))
7 i5 q5 a' @7 ~( X (setq xL4 (entget (entlast)))* ^/ r9 R/ {" w1 @4 g. L7 ?. i J2 ~
(command "INSERT" "Y5" po6 "" "" (* rad Y5jd))
! i S* s4 b: B/ \" T! k (setq xY5 (entget (entlast))) ;插入各初始块,并选取) K0 r& v/ Y) F3 K
3 B+ V/ s1 S _/ A: F (while (>= cs 0): D- ]9 f0 R4 q* o3 ?
(setq deg0 (+ deg0 degsetp))# a% n; q! E+ b- D# ^7 H! R- [, e2 h
(setq deg (- deg0))# b7 W* S& L! Z v$ R( d
(p1)/ T" b/ o# {8 s2 r- o% \; K; U% ]
(p2)
F+ c V* X! u8 u (p3): o* A {' U }# n2 X& O
(p4)
~$ t* _7 L; u* |4 A (setq l2jd (jdl2))
' W' r) d& ^: x1 r8 b/ N (setq l4jd (jdl4))
5 v1 m4 x* p2 @" V1 A (setq y3jd (jdy3))
% H; G, }! X" }* f0 J- A (setq y5jd (jdy5)) ;计算各块的参数
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(setq xq1 (subst (cons 50 deg) (assoc 50 xq1) xq1))
/ B' a; V; W/ f1 U7 M (setq xL2 (subst (list 10 x1 y1) (assoc 10 xL2) xL2))
* r) A7 n. |* J% s' V+ \3 l (setq xL2 (subst (cons 50 l2jd) (assoc 50 xL2) xL2))
# b3 |- [/ z5 D (setq xy3 (subst (cons 50 Y3jd) (assoc 50 xy3) xy3))
8 h* W" K2 \$ E* Y* K) e# v) A2 A/ R0 @ (setq xL4 (subst (list 10 x4 y4) (assoc 10 xL4) xL4))
" J# K) i* ]7 k: b (setq xL4 (subst (cons 50 l4jd) (assoc 50 xL4) xL4))
! k. M9 U7 p0 K (setq xy5 (subst (cons 50 y5jd) (assoc 50 xy5) xy5)) ;修改各块参数- J2 q& |/ n/ [3 Y' D; Y
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& R8 G7 f) }; |3 J( \6 [& G/ t; (setq yyy5 (* y5jd (/ 180 pi)))
, v5 U! ~+ H" S5 B* U5 m& b7 U; (setq yyy51(rtos yyy5 2 15))
/ V- @* }! M, T' P; (princ yyy51 fff)
8 s6 {; Y$ V9 `; (princ "\n" fff) ;将摇臂夹角写入文件, f* _. @/ } ]$ n8 X' K1 w
2 @2 J* o* i4 h4 j" F- _3 k- s' i (entmod xq1)
6 @8 z3 h# t( P2 I3 X7 d (entmod xy3)4 a* n/ H) Q# x
(entmod xl2)
5 w: ~! t9 i6 d3 b, ~ (entmod xy5)2 @# N$ i2 Z( M' W2 q U9 @
(entmod xl4) ;将改好的块写入数据库中: ~+ c7 {8 t/ |# X
" X3 M) i6 n8 v; a6 o/ V8 F% o1 r+ ^ (command "DELAY" "0") ;刷新
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- v* X* g: U4 H' {. `# | (setq cs(- cs 1))
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; (close fff) ;关闭文件
. } M5 ? `* Q I (setvar "osmode" pz)
7 z% L" g# C* [ (setvar "cmdecho" echo) ;恢复设置/ g' W1 L2 ^0 A
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发表于 2008-6-9 20:17
