1、机械原理课程设计粉末成型压机讲解机械原理课程设计题 目： 粉末成型压机设 计 者： 专 业：机械设计制造及其自动化指导教师： 年 月 日第一部分 设计原理及设计要求一、工作原理及工艺动作过程粉末冶金是将金属等粉末的混合料，通过压制成型和烧结而制成零件或成品材料的一种工艺方法。在压制长径比h/depsilon J=-x(4)*sin(theta2) -x(5)*sin(theta3); -x(4)*cos(theta2) x(5)*cos(theta3); dth=inv(J)*(-1.0*f); theta2=theta2+dth(1); theta3=theta3+dth(2); f=-x(
2、7)*cos(x(1)+x(4)*cos(theta2)+x(5)*cos(theta3)-x(6); x(7)*sin(x(1)-x(4)*sin(theta2)+x(5)*sin(theta3); norm(f);end;y(1)=theta2;y(2)=theta3; x1=linspace(0,2*pi,180);x=zeros(length(x1),7);for n=1:180x(n,:)=x1(:,n) 17.4*pi/180 52.6*pi/180 231.8 230.4 379.7 70;end;p=zeros(length(x1),2);for k=1:180y=rrrpos
3、i55(x(k,:);p(k,:)=y;end; p 输出图像2 ，3相对于1的图像plot(x1,p (:,1),-,x1,p(:,2),:)摇杆与竖直线之间的夹角矩阵为m=90-p(:,1)*(180/pi)-37.4;上冲模的行程方程为L=460.8-2*230.4*cos(m)分析上冲模的图像可知，在上冲模达到最低点时会有一小段时间的停歇以起到保压作用。接下来分析速度：首先根据机构需要，定义w1=pi/3,Matlab编程：function y=rrrvel22(x)% Script used to implement Newton-Raphon mechod for% solving
4、 nonlinear position of RRR bar group% Input parameters% x(1)=theta-1% x(2)=theta-2 % x(3)=theta-3 % x(4)=dtheta-1% x(5)=k1 % x(6)=k2% x(7)=k3% x(8)=r1 % Output paramenters% y(1)=dtheta-2% y(2)=dtheta-3%A=-x(5)*cos(x(2) x(6)*cos(x(3); -x(5)*sin(x(2) -x(6)*sin(x(3);B=-x(8)*cos(x(1) -x(8)*sin(x(1)*x(4)
5、;B=B;y=inv(A)*B;输出程序 for i=1:180x2(i,:)=x11(i,1),p(i,1),p(i,2),pi/3,231.8,230.4,379.7,70;end; q=zeros(2,180);for m=1:180y2=rrrvel22(x2(m,:);q(:,m)=y2;end; q输出图像plot(x1,q(1,:),-,x1,q(2,:),:);w2,w3,相对于w1的图像：上冲模的速度函数V=dL/dt输出图像为：加速度分析Matlab 编程分析：function y=rrra111(x)% input parameters% x(1)=th1% x(2)=t
6、h2% x(3)=th3% x(4)=dth1% x(5)=dth2% x(6)=dth3% x(7)=k1% x(8)=k2% x(9)=k3% x(10)=r1% y(1)=ddth2% y(2)=ddth3%A=-x(7)*cos(x(2) x(8)*cos(x(3); -x(7)*sin(x(2) x(8)*sin(x(3);B=x(7)*x(5)*sin(x(2) -x(8)*x(6)*sin(x(3); -x(7)*x(5)*cos(x(2) -x(8)*x(6)*cos(x(3);C=x(5);x(6);D=x(10)*x(4)2*sin(x(1);-x(10)*x(4)2*co
7、s(x(1);y=inv(A)*D-inv(A)*B*C;输出程序for i=1:180x3(i,:)=x11(i,1),p(i,1),p(i,2),pi/3,q(1,i),q(2,i),0.2318,0.2304,0.3797,0.070 ;end;n=zeros(2,180);for k=1:180y3=rrra111(x3(k,:);n(:,k)=y3;end;nsubplot(1,2,1);plot(x1,n(1,:);xlabel(theta1);ylabel(ddtheta3);title(杆2的角加速度); subplot(1,2,1);plot(x1,n(1,:);xlabel
8、(theta1);ylabel(ddtheta2);title(杆1的角加速度);subplot(1,2,2);plot(x1,n(1,:);xlabel(theta1);ylabel(ddtheta3);title(杆二的加速度 ); 上冲模的加速度A=dV/dt输出图像为：（该图像用数学里面的微积分求出，故在图像最后会有一点图像不正常显示，这属于正常情况，不影响加速度的分析）统计所输出的数据：123w2W32300.232380.233820.16301-0.16301-189.12-190.340.0351020.238180.22870.1832-0.1425728.8128.9280
9、.0702030.244660.224260.20309-0.122213.36613.3990.10530.251790.22050.22249-0.102088.63428.6470.140410.259570.217410.24125-0.0823846.30996.31740.175510.267960.214970.25921-0.0632494.91324.9210.210610.276930.213160.27626-0.0447963.9733.98410.245710.286470.211960.2923-0.0271163.29293.30880.280810.296520
10、.211340.30728-0.0102742.77622.7980.315910.307050.211260.321140.0056912.36992.39830.351020.318030.211710.333870.0207632.04212.07750.386120.329420.212640.345480.0349451.77271.81530.421220.341180.214040.355980.0482561.54791.59810.456320.353280.215870.365410.0607281.35821.41610.491420.365670.21810.37378
11、0.07241.19671.26240.526520.378320.220720.381170.0833191.05811.13170.561630.391210.223680.38760.0935350.938331.01990.596730.40430.226980.393130.10310.83430.923840.631830.417550.230590.39780.112060.743450.841050.666930.430960.234490.401670.120480.663750.769450.702030.444470.238660.404780.128390.593530
12、.707340.737130.458080.243090.407170.135840.531410.653350.772240.471760.247760.408890.142890.476220.606330.807340.485490.252660.409960.149560.427020.565310.842440.499240.257780.410430.155890.382980.529470.877540.5130.263110.410320.161930.343420.498130.912640.526740.268630.409660.167690.307760.470710.
13、947740.540450.274350.408480.173220.275490.446690.982840.554120.280240.40680.178520.246180.425661.01790.567720.286310.404640.183640.219480.407241.0530.581240.292550.402010.188590.195050.391111.08810.594670.298960.398950.193380.172620.3771.12330.607980.305520.395450.198040.151960.364671.15840.621170.3
14、12230.391530.202580.132860.353891.19350.634220.31910.38720.207020.115120.344491.22860.647120.326110.382480.211370.0986030.33631.26370.659860.333260.377360.215630.0831540.329181.29880.672420.340560.371860.219820.0686520.322991.33390.684790.3480.365990.223950.0549830.317621.3690.696950.355580.359750.2
15、28020.042050.312951.40410.70890.363290.353140.232040.0297610.30891.43920.720620.371130.346180.236010.0180360.305361.47430.73210.379110.338860.239940.00680020.302261.50940.743330.387220.331180.24382-0.00401520.299521.54450.75430.395450.323160.24767-0.0144740.297061.57960.764990.403820.314790.25149-0.
16、0246360.29481.61470.77540.412310.306080.25526-0.034560.292681.64980.785510.420930.297040.259-0.04430.290631.68490.795310.429670.287660.2627-0.0539120.288571.720.804790.438540.277940.26635-0.063450.286441.75510.813940.447530.267910.26996-0.0729690.284151.79020.822750.456640.257540.27351-0.0825260.281
17、641.82530.83120.465870.246870.27701-0.0921810.278831.86040.839290.475210.235880.28045-0.1020.275631.89550.847010.484670.224580.28381-0.112040.271951.93060.854350.494230.212990.2871-0.122380.26771.96570.861290.503910.201110.29029-0.13310.262782.00080.867820.513690.188940.29339-0.144290.257072.03590.8
18、73950.523580.176510.29637-0.156050.250462.0710.879650.533560.163810.29923-0.168480.24282.10610.884930.543640.150870.30196-0.181720.233952.14120.889770.55380.137690.30453-0.19590.223742.17630.894160.564050.12430.30694-0.211180.211992.21140.89810.574380.11070.30916-0.227760.198482.24650.901580.584770.
19、0969110.31119-0.245850.182972.28160.904590.595240.0829590.31299-0.26570.165192.31670.907140.605760.068860.31456-0.28760.144822.35180.909210.616320.0546370.31587-0.31190.121492.38690.91080.626930.0403140.31691-0.339020.0947762.4220.911910.637560.0259140.31765-0.369430.0641622.45710.912530.648220.0114660.31807-0.403740.0290392.49220.912680.65888-0.00300520.31815-0.44265-0.0113272.52730.912
