机械原理课程设计凸轮设计.doc

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机械原理课程设计
编程说明书
设计题目： 牛头刨床凸轮机构
指导教师：王琦王春华
设计者： 雷选龙
学号： 0807100309
四 程序清单与运行结果
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#include<>
#include<>
#include<>
#include<>
#include<>
#define Aa 40
#define r_b 50
#define K ()
float Q_max,Q_t,Q_s,Q_h;
float Q_a;
double L,pr;
float e[1500],f[1500],g[1500];
void Cal(float Q,double Q_Q[3])
{
Q_max=15,Q_t=70,Q_s=10,Q_h=70;
if(Q>=0&&Q<=Q_t/2)
{
Q_Q[0]=K*(2*Q_max*Q*Q/(Q_t*Q_t));
Q_Q[1]=4*Q_max*Q/(Q_t*Q_t);
Q_Q[2]=4*Q_max/(Q_t*Q_t);
}
if(Q>Q_t/2&&Q<=Q_t)
{
Q_Q[0]=K*(Q_max-2*Q_max*(Q-Q_t)*(Q-Q_t)/(Q_t*Q_t));
Q_Q[1]=4*Q_max*(Q_t-Q)/(Q_t*Q_t);
Q_Q[2]=-4*Q_max/(Q_t*Q_t);
}
if(Q>Q_t&&Q<=Q_t+Q_s)
{
Q_Q[0]=K*Q_max;
Q_Q[1]=0;
Q_Q[2]=0;
}
if(Q>Q_t+Q_s&&Q<=Q_t+Q_s+Q_h/2)
{
Q_Q[0]=K*(Q_max-2*Q_max*(Q-Q_t-Q_s)*(Q-Q_t-Q_s)/(Q_h*Q_h));
Q_Q[1]=-4*Q_max*(Q-Q_t-Q_s)/(Q_h*Q_h);
Q_Q[2]=-4*Q_max/(Q_h*Q_h);
}
if(Q>Q_t+Q_s+Q_h/2&&Q<=Q_t+Q_s+Q_h)
{
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Q_Q[0]=K*(2*Q_max*(Q_h-Q+Q_t+Q_s)*(Q_h-Q+Q_t+Q_s)/(Q_h*Q_h));
Q_Q[1]=-4*Q_max*(Q_h-Q+Q_t+Q_s)/(Q_h*Q_h);
Q_Q[2]=4*Q_max/(Q_h*Q_h);
}
if(Q>Q_t+Q_s+Q_h&&Q<=360)
{
Q_Q[0]=K*0;
Q_Q[1]=0;
Q_Q[2]=0;
}
}
void Draw(float Q_m)
{
float tt,x,y,x1,y1,x2,y2,x3,y3,x4,y4,dx,dy;
double QQ[3];
circle(240,240,3);
circle(240+L*sin(50*K)+4*cos(240*K),240+L*cos(50*K)-4*sin(240*K),3);
moveto(240,240);
lineto(240+20*cos(240*K),240-20*sin(240*K));
lineto(260+20*cos(240*K),240-20*sin(240*K));
lineto(240,240);
moveto(240+L*sin(50*K)+4*cos(240*K),240+L*cos(50*K)-4*sin(240*K));
lineto(240+L*sin(50*K)+20*cos(240*K),240+L*cos(50*K)-20*sin(240*K));
lineto(255+L*sin(50*K)+20*cos(240*K),240+L*cos(50*K)-20*sin(240*K));
lineto(240+L*sin(50*K)+4*cos(240*K),240+L*cos(50*K)-4*sin(240*K));
for(tt=0;tt<=720;tt=tt+2)
{
Cal(tt,QQ);
x1=L*cos(tt*K)-l*cos(Q_a+QQ[0]-tt*K);
y1=l*sin(Q_a+QQ[0]-tt*K)+L*sin(tt*K);