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原代码
在CAD中的LISP进行编辑。. {$ \- i8 ^1 G
2 m A. o* f) u% z* U2 d(defun sqr (xx) (* xx xx))
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(defun p1 () ;计算l2连杆靠近曲柄的联接点坐标* [7 |! p' I& l8 i: k& R* j
(setq deg (/ (* deg pi) 180))
9 n) q1 m! U" d! ^; ?5 O; n' p4 a (setq x1 (* r (cos deg)))
2 ?, `% [& X g2 L& v8 H (setq y1 (* r (sin deg)))
, F7 T+ ~: o: U7 g (setq po1 (list x1 y1))& X3 I+ P. C* L
)
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(defun p3 () ;计算l4连杆靠近曲柄的联接点坐标3 c/ F# } u* A" E
(setq deg1 (+ deg (/ pi 2)))0 Z5 d% B" |/ z2 d% ^2 M
(setq x3 (* r (cos deg1)))' H; B, h+ {# h0 K- m
(setq y3 (* r (sin deg1)))
+ v8 O4 a/ s j: k (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! k; L/ \# g, W
(setq c x5)3 V! Y) j% U) F4 r8 x: h
(setq a x1)0 g' T' l- A# w1 |
(setq b y1) ^! o, N% g+ d+ Z
(setq d y5)1 N! V% T! P7 K3 S
(setq e (- (+ (sqr a) (sqr b)) (sqr l))); @ J# C8 {3 U* v' n& J. [! `* d4 T
(setq f (- (+ (sqr c) (sqr d)) (sqr p)))+ w1 {- p' O! W5 v; I
(setq g (+ (* 2 (sqr a)) (- e) f (* -2 c a)))+ g" `( s3 l5 W
(setq h (* 2 (- b d)))
( r% F9 W; p: z4 Y# T (setq i (* 2 (- a c)))
/ s) w* b! V1 a: i9 E (setq j (- (sqr a) e))8 s# ]' q4 [8 s1 M h2 j
(setq j1 (* -1 (+ (sqr h) (sqr i)))). ?/ d) S6 A1 r" U% |2 ?4 F
(setq j2 (- (* 2 b (sqr i)) (* 2 g h)))
% U2 U' s4 n4 n (setq j3 (- (* (sqr i) j) (sqr g)))/ Q$ R; |- S$ N x
(setq y2 (/ (+ (- j2) (- (sqrt (- (sqr j2) (* 4 j1 j3))))) (* 2 j1)))* v; K& u4 R u) ?' j3 }
(SETQ X2 (+ A (SQRT (+ (SQR A) (- E) (- (SQR Y2)) (* 2 B Y2)))))9 p- q. P3 m- a5 x9 O; i! o# B2 v
(setq po2 (list x2 y2))) f) N6 m, D4 j" q5 C" t$ Z [
)
s( ]0 l3 S7 F, h% u, C* q(defun p4 () ;计算Y5摇臂与连杆L4的铰接点坐标
! n; m+ \- h# q* _1 B: R% L (setq c x6)
, y% j: B# y; @ (setq a x3)# {( P& L( l5 g, c* I& @) k
(setq b y3)
! V" |& M- ^1 H7 K! ] (setq d y6)
9 O% ^, j! X& h: A0 [ (setq e (- (+ (sqr a) (sqr b)) (sqr l)))) X" h& Z4 B$ @- O
(setq f (- (+ (sqr c) (sqr d)) (sqr p)))
% M$ V( A q4 D, ?3 _ x (setq g (+ (* 2 (sqr a)) (- e) f (* -2 c a)))
g/ H; m" i4 N (setq h (* 2 (- b d)))
' i5 ]+ X* T( @7 ~% h! D+ J6 u8 |5 E1 W (setq i (* 2 (- a c)))2 ~! w5 Q$ K5 A* D# |/ X6 k2 s" @
(setq j (- (sqr a) e))
) C. n6 c, Q! k0 m2 [ U (setq j1 (* -1 (+ (sqr h) (sqr i))))
, Q% T/ p3 b4 a. j4 t8 v. _ (setq j2 (- (* 2 b (sqr i)) (* 2 g h)))$ ]: r/ H$ F6 M2 {8 ?8 B% o
(setq j3 (- (* (sqr i) j) (sqr g)))
1 w) Q! w' W! W- U* e/ ? (setq y4 (/ (+ (- j2) (+ (sqrt (- (sqr j2) (* 4 j1 j3))))) (* 2 j1)))( Q7 S2 }4 i$ \7 r. L
(SETQ X4 (- A (SQRT (+ (SQR A) (- E) (- (SQR Y4)) (* 2 B Y4))))), M$ |/ r0 n! [) m" Q. g
(setq po4 (list x4 y4))! h ?/ C0 y6 O" j( G
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(defun jdl2 () (atan (- y2 y1) (- x2 x1))) ;计算连杆L2的转动角度5 A! q$ |/ w- `) p/ J( D
(defun jdy3 () (atan (/ (- y2 y5) (- x2 x5)))) ;计算摇臂Y3的转动角度; F6 i2 G6 @3 s
(defun jdl4 () (atan (- y3 y4) (- x3 x4))) ;计算连杆L4的转动角度
% G) {- y$ i" ?0 p' ]& f(defun jdy5 () (atan (- y4 y6) (- x4 x6))) ;计算摇臂Y5的转动角度3 U" O1 T+ Z; p6 L9 s9 M% k
% v7 _; z. `+ Y
(defun c:fx ()
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(SETQ qss(GETREAL "\n 演示旋转圈数:"))
6 I0 Y1 n0 m+ x% h; C: c8 N (SETQ degsetp(GETREAL "\n 角度增量:"))
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2 l- F) ?6 c) F& D9 @& E! T (setq pz (getvar "osmode"))
- ^, i. D0 I1 F# p3 l (setvar "osmode" 0) 0 N: H# u) |( [# |
(setq echo (getvar "cmdecho"))
6 A( B3 _5 A) u6 ?% O: Z, ^ (setvar "CMDECHO" 0) ;保存环境参数 并 设置/ u! x/ M! ^+ [, f
0 n# h0 {) k% ?& [4 J3 j; (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( V+ x/ h1 F* ^% k2 i: w! l
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(setq cs(- (/ (* 360 qss) degsetp) 1) )1 T9 J1 h$ f% u, _- R: ]. a7 q5 ~
+ W: K* }8 b! Q B1 D
(setq r 11.5)
) O6 a$ L6 [3 m! Z (setq l 45.5)8 o, C1 ^9 v& y$ D- i) F
(setq p 51)% I1 o/ f9 \( \' H
(setq po0 (list 0 0))
3 @& H% j; u; t8 E3 G (setq x5 61.51)& O( x$ J# t7 y
(setq y5 -27.5)0 ^ H7 e8 k Q+ n8 n& [
(setq po5 (list 61.51 -27.5))0 J" Q5 {$ F$ {! T
(setq x6 -61.51)8 t& ]8 I& V9 |" p6 L0 K& \; W
(setq y6 27.5)1 x/ p7 g; Y" A# f/ X: _' h
(setq po6 (list -61.51 27.5)) ;以上是一些固定参数+ W5 |% \' }+ {# F% |
& L9 I% k7 D$ E" d! r5 d3 O (setq deg 0)4 I/ {# |' |1 {+ e3 ~
(setq deg0 deg)
9 u& P; r- `! f. r; v2 ~2 [ (setq rad (/ 180 pi))
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3 O$ H1 ?8 v) Z+ X/ ?3 x6 j7 A (p1)
' @1 ^/ |& P* ~% Z; [; d (p2)6 [* {0 u {. w4 k0 Q, d
(p3)
M2 {5 e, {( i$ N) m+ ^ (p4): O: {) f# L3 h" g9 d
(setq l2jd (jdl2))& H. a4 T" @' {! r
(setq l4jd (jdl4))
* M" d; y3 ~! W/ I; V4 e (setq y3jd (jdy3))
4 _/ P. |+ _8 B: |7 Z# H5 B (setq y5jd (jdy5)) ; 计算各块的初始插入参数4 e6 ^- z8 s5 P
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(COMMAND "ERASE" "ALL" "" ) ;删除所有对象,不需删的对象可以设置到其它图层并将其锁定
+ ~$ f% j! C6 n* e( N# _
6 E, y, \) U( `, e2 B1 z8 P; e (COMMAND "INSERT" "Q1" po0 "" "" (* rad deg))
% V3 |0 W0 x9 N0 z7 V0 v (setq xq1 (entget (entlast)))
$ m6 d8 H' r& _& ^' \ (command "INSERT" "l2" po1 "" "" (* rad l2jd))
8 X% a$ R4 U) q' I9 t2 ?- f7 A8 [4 p6 ] (setq xL2 (entget (entlast))). a: ?& @: N8 g% Y. [0 D
(command "INSERT" "Y3" po5 "" "" (* rad y3jd)), X$ n9 {0 B8 |" N: C8 n4 y: L8 p; u
(setq xY3 (entget (entlast)))% A% Y0 c) l( m& D" V
(command "INSERT" "l4" po4 "" "" (* rad l4jd))
: ~9 x9 h& ]/ k3 w (setq xL4 (entget (entlast)))& ]9 P( H0 H' T
(command "INSERT" "Y5" po6 "" "" (* rad Y5jd))3 M( F" F: m0 k1 _5 E9 t# n8 ]% i4 v
(setq xY5 (entget (entlast))) ;插入各初始块,并选取
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(while (>= cs 0)
, f6 u- z1 E$ X! T! k" `0 q (setq deg0 (+ deg0 degsetp))3 F1 V% G H( s1 v6 Q. D% h
(setq deg (- deg0))
9 v' V. }% H) m; P. k3 c/ d; E4 F (p1)3 d- @0 x" s3 S2 p4 y
(p2)" m0 S" I3 j# f& S! I) l" _
(p3)
0 H: d# n) S, E0 a# t$ T0 u1 G (p4), A) @1 P# ` o' M3 v# b
(setq l2jd (jdl2))9 f/ S+ V/ ?- D: n- V! X) ~
(setq l4jd (jdl4)): M; G8 y4 d+ X% I1 E2 ~+ }
(setq y3jd (jdy3))* U9 t9 q5 F" K F" ]' j
(setq y5jd (jdy5)) ;计算各块的参数5 U: p1 G- y4 O
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(setq xq1 (subst (cons 50 deg) (assoc 50 xq1) xq1))
0 R% l, R! k9 \( v0 l (setq xL2 (subst (list 10 x1 y1) (assoc 10 xL2) xL2))
( t Y. x$ o9 Y' h (setq xL2 (subst (cons 50 l2jd) (assoc 50 xL2) xL2))
% o9 v1 E8 W, p5 ~( t6 u9 q (setq xy3 (subst (cons 50 Y3jd) (assoc 50 xy3) xy3)). w5 }# S3 W* M+ Z& r
(setq xL4 (subst (list 10 x4 y4) (assoc 10 xL4) xL4))5 b0 z+ U0 Z* N
(setq xL4 (subst (cons 50 l4jd) (assoc 50 xL4) xL4))9 M0 E! ?# @/ C& F0 R8 ]# G
(setq xy5 (subst (cons 50 y5jd) (assoc 50 xy5) xy5)) ;修改各块参数
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; (setq yyy5 (* y5jd (/ 180 pi))). G) [ X* N, q; X1 l1 l: W
; (setq yyy51(rtos yyy5 2 15))
% Q& ]* T, W& N! @3 q7 ~+ V; (princ yyy51 fff)
* t5 J, k/ B- |7 O# ^; (princ "\n" fff) ;将摇臂夹角写入文件& V- C( ]9 i) D+ K: Y& n9 ~: S
, {- v1 i3 A/ ~. I- M' E7 X1 Q
(entmod xq1)# L) [! X5 O) J
(entmod xy3)9 e2 p) L( T) ^5 E* I* A
(entmod xl2)
% b2 h7 a; V4 J! b/ ]8 L# @$ |. K (entmod xy5): K( N1 k) a; ^$ Z3 J7 _
(entmod xl4) ;将改好的块写入数据库中5 ^# R0 v" ` K& v( N
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(command "DELAY" "0") ;刷新$ r0 ^5 h. M$ w
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(setq cs(- cs 1))
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; (close fff) ;关闭文件
9 v: P( R6 F3 r; n( y, x4 O (setvar "osmode" pz)" o! S6 Q r& G8 ~7 B
(setvar "cmdecho" echo) ;恢复设置
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发表于 2008-6-9 20:17
