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原代码
在CAD中的LISP进行编辑。 r$ g& V% F5 d0 x0 X9 U
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(defun sqr (xx) (* xx xx))9 m1 B) l, v* ?! _. X; o, N
1 L! L9 K3 Z, b$ l% E) k(defun p1 () ;计算l2连杆靠近曲柄的联接点坐标
3 p- }4 D8 {3 \7 c' N: c (setq deg (/ (* deg pi) 180))
$ a- \- G" B, q. V (setq x1 (* r (cos deg)))2 | J7 E" o0 m5 ]% t
(setq y1 (* r (sin deg)))
% p) L% m& j7 [1 y1 O# u (setq po1 (list x1 y1))5 ~8 k" r0 U: N; C
)
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(defun p3 () ;计算l4连杆靠近曲柄的联接点坐标
' t8 g% N* v. q (setq deg1 (+ deg (/ pi 2)))
! C0 ~0 ]/ A: A7 V9 l2 h (setq x3 (* r (cos deg1)))7 `6 f3 }6 w" M) ?+ @
(setq y3 (* r (sin deg1)))6 X/ _7 W0 a- H1 G$ \. t: C
(setq po3 (list x3 y3)), K. E% R0 E' x: C S, Q
)
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) }( b, @- U" k3 P% @(defun p2 () ;计算Y3摇臂与连杆L2的铰接点坐标
% t* Y; H5 A, \; F2 [( I (setq c x5)
1 K; T- L- k/ O2 Y (setq a x1)
8 x& R. G* _6 X" J$ M& i% |" A) @8 i5 L (setq b y1)
p7 ?8 H/ z, J (setq d y5)! f- J1 L" |, Q& P
(setq e (- (+ (sqr a) (sqr b)) (sqr l)))7 _' K0 K3 u& X
(setq f (- (+ (sqr c) (sqr d)) (sqr p)))
' ~! m5 U" P% G, j" O# Y (setq g (+ (* 2 (sqr a)) (- e) f (* -2 c a)))
5 \* T5 [: U6 }- X+ l4 R (setq h (* 2 (- b d)))
) \: f, [6 D# l5 [3 u: U, T (setq i (* 2 (- a c)))
3 ^$ s) d" [. z4 n8 Z9 f (setq j (- (sqr a) e)): b+ Y( r# N* P0 N3 P# x1 G5 L
(setq j1 (* -1 (+ (sqr h) (sqr i))))
- z3 u% i5 s2 |# D (setq j2 (- (* 2 b (sqr i)) (* 2 g h)))8 ~/ k, o. ~5 _
(setq j3 (- (* (sqr i) j) (sqr g))). ]: r# D8 M0 E8 C" K4 o+ c
(setq y2 (/ (+ (- j2) (- (sqrt (- (sqr j2) (* 4 j1 j3))))) (* 2 j1))): g T# d( e {2 K
(SETQ X2 (+ A (SQRT (+ (SQR A) (- E) (- (SQR Y2)) (* 2 B Y2)))))
{, c; r4 \& u% G9 @ (setq po2 (list x2 y2))5 N% G( t+ ~( C7 c+ y$ g/ w
)
: b. s4 @& L* M& R4 D c# I# D s2 p(defun p4 () ;计算Y5摇臂与连杆L4的铰接点坐标; E9 ]9 ^' M, k/ \. N% |
(setq c x6)
1 d) ?5 o' h. X! o% t& |7 S (setq a x3)
% b& Q1 R! I1 n1 k (setq b y3)
9 T& t3 {8 c6 U% u( G9 n$ D (setq d y6)# ~' T! l( \0 }6 d% [
(setq e (- (+ (sqr a) (sqr b)) (sqr l)))' b5 d0 s$ S5 w. y
(setq f (- (+ (sqr c) (sqr d)) (sqr p)))
, I. k ?1 ]2 d6 ?) u (setq g (+ (* 2 (sqr a)) (- e) f (* -2 c a)))8 M* F8 {, X& Z y1 p
(setq h (* 2 (- b d)))! u. v. I6 I7 k
(setq i (* 2 (- a c)))
* \* ~3 d+ a& a. L8 i! O (setq j (- (sqr a) e)). v& G+ B s. Z/ ~/ t( O
(setq j1 (* -1 (+ (sqr h) (sqr i))))
) f' T) B: `' c9 i (setq j2 (- (* 2 b (sqr i)) (* 2 g h)))- D* V ?' I3 @: U
(setq j3 (- (* (sqr i) j) (sqr g)))
: p1 T) y; b4 n8 D& c (setq y4 (/ (+ (- j2) (+ (sqrt (- (sqr j2) (* 4 j1 j3))))) (* 2 j1)))
- c; T; a0 k+ \ (SETQ X4 (- A (SQRT (+ (SQR A) (- E) (- (SQR Y4)) (* 2 B Y4))))), Q4 {/ q/ P0 h' Y0 C) D
(setq po4 (list x4 y4))
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(defun jdl2 () (atan (- y2 y1) (- x2 x1))) ;计算连杆L2的转动角度4 C6 x% Y: b- g) F4 y8 W
(defun jdy3 () (atan (/ (- y2 y5) (- x2 x5)))) ;计算摇臂Y3的转动角度8 I& K! Q! }4 Q @/ G' N6 L1 q
(defun jdl4 () (atan (- y3 y4) (- x3 x4))) ;计算连杆L4的转动角度
+ F' n7 ~, J M# W( ?! X$ ^(defun jdy5 () (atan (- y4 y6) (- x4 x6))) ;计算摇臂Y5的转动角度2 Q) P4 y6 V, m
$ r3 L) Q5 Y! t _+ B1 @: y6 p
(defun c:fx ()
+ @5 J) i- y- M' e+ V% q5 R! H
( o8 X6 [4 \8 `" W% J- O (SETQ qss(GETREAL "\n 演示旋转圈数:"))& J1 f) W, }7 s* U$ v$ v4 L
(SETQ degsetp(GETREAL "\n 角度增量:"))
# X/ ~3 O3 b+ ?* a2 ?( x4 {7 F) [9 Z3 _- o6 ?
(setq pz (getvar "osmode"))( v- O) T" H7 K* R; [0 F* Q; H
(setvar "osmode" 0)
F% v- N+ J1 V6 f {+ m (setq echo (getvar "cmdecho"))4 K4 y/ `& v. x* l3 t
(setvar "CMDECHO" 0) ;保存环境参数 并 设置* S: ~ n1 T* l, T( {5 b! K- W
: d$ F1 ]5 G9 s( X; (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
* U) c9 m0 U; y: G4 h+ g
, R( v5 N6 r2 n. |9 r- Z (setq cs(- (/ (* 360 qss) degsetp) 1) )
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(setq r 11.5)
' d1 @4 Q" t9 T3 B9 ~4 w (setq l 45.5)4 e/ L- M0 R1 Y8 O. k# Z
(setq p 51)
* l% [2 D1 {6 [4 }5 z (setq po0 (list 0 0))& f$ l: L$ \: I- y9 Y3 I1 \
(setq x5 61.51)2 N! w1 a1 W7 X# ]2 E0 `- ]
(setq y5 -27.5)
+ D5 O" t- Z" ~ ?/ L (setq po5 (list 61.51 -27.5))
0 O( f1 _7 C3 |4 ?7 i1 Y (setq x6 -61.51)4 T3 p2 k& J: F/ W
(setq y6 27.5)3 p. ~. U! t Z: u
(setq po6 (list -61.51 27.5)) ;以上是一些固定参数& n5 ] S8 ?3 g) p: }" K
+ d8 `# p3 b. O. Q) A1 @' A
(setq deg 0), h4 L, X. ~+ z; J
(setq deg0 deg)! _% H! P6 c. p8 y( ?$ X- u ]
(setq rad (/ 180 pi))
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% {% `- c$ l' x; d& n (p1)
+ E& W* z8 ]0 D+ B (p2)1 s- Y$ z3 T3 A# `; g9 r/ q
(p3)
( j U0 X& ]+ A# \0 @! j5 q (p4)
: m8 Z7 b$ i7 g& E$ X0 C (setq l2jd (jdl2))# G/ V! w1 p6 r4 K# C. G% e1 f, B
(setq l4jd (jdl4))
8 b+ {4 g. ]: y0 |. L( D |4 I (setq y3jd (jdy3))
. x- I0 ?3 `' ], ]9 r7 o% V/ D% c (setq y5jd (jdy5)) ; 计算各块的初始插入参数7 c3 f6 i9 ]# i. z/ F8 ~
; q5 W! t: Z* `5 |. @ (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
; r" s# V$ l; C& j! f
' l. n! X4 [" H1 e; X$ l& ] (COMMAND "INSERT" "Q1" po0 "" "" (* rad deg))3 r8 u2 w3 z! l+ G1 ]# l3 l# k7 j( R
(setq xq1 (entget (entlast)))
5 Z0 n3 K( ]. u8 P4 M (command "INSERT" "l2" po1 "" "" (* rad l2jd))
) n& Y/ s+ w0 ], x& j% e5 o( w (setq xL2 (entget (entlast)))3 \; d# A4 Q: u
(command "INSERT" "Y3" po5 "" "" (* rad y3jd))
, }' T/ f( N4 ~; M" x2 c. g7 Q3 A Q (setq xY3 (entget (entlast))); l5 f& K; W- ?
(command "INSERT" "l4" po4 "" "" (* rad l4jd))
* c- d7 g. z- K. P% x2 w (setq xL4 (entget (entlast)))8 h/ H* L' O% \$ r- B- D2 o
(command "INSERT" "Y5" po6 "" "" (* rad Y5jd))* h3 K' b& I* R$ K' r4 X% T9 v
(setq xY5 (entget (entlast))) ;插入各初始块,并选取
( U4 N7 M" F3 L% f4 `
5 L2 U1 |1 f& d5 P (while (>= cs 0)
# h n+ A; d0 U3 [7 l8 |2 i) E (setq deg0 (+ deg0 degsetp))' r C# r7 l) C6 f9 D8 H; ]
(setq deg (- deg0))
5 T* w e7 `& s7 K7 H7 R (p1)
* ^6 T! t& k' x* G& R (p2)0 Q+ O; J, _- i; Z, T0 W
(p3)1 d0 e9 U& O' R" Q
(p4)
( k4 f' j) `: N0 j2 t9 l# i9 c (setq l2jd (jdl2))
# V, _( X+ R7 j3 R' U2 s2 E (setq l4jd (jdl4))# E0 [) v* X( M0 P3 n. B" }+ X: y
(setq y3jd (jdy3))
( x0 Y* ?, Y2 ^2 l% s (setq y5jd (jdy5)) ;计算各块的参数6 K$ I& \1 @. G, C( C4 M2 _! o
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(setq xq1 (subst (cons 50 deg) (assoc 50 xq1) xq1))' z) h0 j9 q1 ^3 t# T
(setq xL2 (subst (list 10 x1 y1) (assoc 10 xL2) xL2))
& [+ v: x. w& j0 x1 [" ]- S- n (setq xL2 (subst (cons 50 l2jd) (assoc 50 xL2) xL2))) d- L! Q6 D- S+ c
(setq xy3 (subst (cons 50 Y3jd) (assoc 50 xy3) xy3))7 D' V4 h: O6 o' ~, V+ k
(setq xL4 (subst (list 10 x4 y4) (assoc 10 xL4) xL4))9 F5 U! T9 k; b' e d$ h
(setq xL4 (subst (cons 50 l4jd) (assoc 50 xL4) xL4))
; o0 S0 G* f7 }( _! a( ^ (setq xy5 (subst (cons 50 y5jd) (assoc 50 xy5) xy5)) ;修改各块参数
( i2 I0 X# O+ F3 c- A
1 K4 U% {( U3 F" c' j) q/ v# T6 i
$ {; c: i* n, d& l2 R+ N; (setq yyy5 (* y5jd (/ 180 pi)))
|4 Y" ?( F; |, G! O; (setq yyy51(rtos yyy5 2 15))
* U& x8 y$ Y& F; (princ yyy51 fff)- G8 t6 d) m8 z8 m, x' e
; (princ "\n" fff) ;将摇臂夹角写入文件
# z& P( c0 G' t8 k* e J: `2 U0 d/ U w3 z+ V& @
(entmod xq1) e/ z& m, r6 z1 Z+ j7 w7 | ^% V
(entmod xy3). K8 f' h5 x- F
(entmod xl2)
) Q& o7 p' J2 r& T+ R$ y% c0 G (entmod xy5)0 ^+ W. x- t, z ^, s1 n
(entmod xl4) ;将改好的块写入数据库中
9 O7 S6 n/ d8 l- a4 j$ Z1 \
- I1 [' F! }! [ (command "DELAY" "0") ;刷新4 {- T! @8 S; j
+ n8 i$ v- N; z
(setq cs(- cs 1))
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; (close fff) ;关闭文件6 } _- w% y& a1 k7 D4 _7 H
(setvar "osmode" pz)) s' V0 M1 }1 f1 R W0 S" f
(setvar "cmdecho" echo) ;恢复设置
$ }, `( T$ E+ b& s( m* \) S% [( ?
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发表于 2008-6-9 20:17
