[Psychology] Mechanical Assemblies Phần 2 ppsx

... Retaining screw J Inner bearing K Retaining screw Feature 1 2 3 4 1 2 3 4 5 6 7 8 1 2 3 4 1 2 3 1 2 1 2 3 1 2 1 2 3 1 2 1 2 3 1 2 Feature Name Bearing bore Trunnion bore Trunnion bore Bearing ... Section 4.E .2. d.3. This produces a resultant wrench matrix WR. WR has the form 77? = (4 -20 ) &lx G>ly 0>\z V\ x V\ y Vi z (0 2x 0>2y &2z...

Ngày tải lên: 07/08/2014, 04:21

... engineering. 2. Design, Industrial. I. Title. TS171.4.W48 20 04 658.5'7 52- dc 22 Printing number: 987654 321 Printed in the United States of America on acid-free paper 20 03066170 2. E. VARIATION ... Questions 28 2 10.I. Further Reading 28 5 10.J. Appendix: Derivation of Part Mating Equations 28 5 10.J.1. Chamfer Crossing 28 5 10.J .2. One-Point Contact 28 6...

Ngày tải lên: 07/08/2014, 04:20

... W 2 , W 3 , and W 4 . We then systematically form (the order is arbitrary) T \2, T \23 , and ^23 4, and Wi2, Wi23, and W \23 4, as follows: Tiz = 0(7,, r 2 ) = recip(U(W } , W 2 )) = ... and path 2 ^ 123 = n(7i, T 2 , 7s) = ncip(\J(Wi, W 2 , Wj)) = net motions allowed by path 1, path 2, = and path 3 r, 23 4 = n(r,, r 2 , r 3 , r...

Ngày tải lên: 07/08/2014, 04:21

... 0]; ddx2=-(dy2-dyl)718; ddy2=(dx2-dxl) 718; ddz2=0; dA2=[0 -ddz2 ddy2 0;ddz2 0 -ddx2 0;-ddy2 ddx2 0 0;0 000]; %door_act %actual door position T=(eye(4)+dAl)*Al*(eye(4)+dA2)*A2; DT=T-A1*A2; ERR=V_L(DT(1:3, ... 11,-0 0 0 1] ; A2 =[1 0 0 40,-0 1 0 0;0 0 1 34,-0 0 0 1 ] ; %door_dev %calculate deviations E=4.5 /25 .4 dxl=E*V(l) dx2=E*V (2) dyl=E*V(3) dy2=E*V(4) dzl=E*V(...

Ngày tải lên: 07/08/2014, 04:21

... between two kinds of assemblies, which we call Type 1 and Type 2. Type 1 assemblies are constrained completely by feature relations between their parts. Type 2 assemblies are underconstrained ... S.M. thesis, MIT Mechanical Engineering Department, May 20 02. [Gui and Mantyla] Gui, J., and Mantyla, M., "Functional Under- standing of Assembly...

Ngày tải lên: 07/08/2014, 04:21

... (1+.5*MU*D/L) 21 21 LET M1=M1*SCALF 21 22 LET FX=FX*SCALF 21 23 LET FZ=FZ*SCALF 21 24 LET F2=F2*SCALF 21 30 IF (L > L2 + 2) AND (F2 <= 0) THEN 21 40 PRINT "TWO POINT CONTACT LOST" 21 50 ... (Continued) 1655 1660 1670 1680 1690 1700 1710 1 720 1730 1740 1750 1760 1770 1780 1790 1800 1810 1 820 1830 1840 1850 1860 1870 1880 1890 1900 1910 1 920 1930 1940...

Ngày tải lên: 07/08/2014, 04:21

... Origins," April 23 , 20 01, pp. 60-61; correspondence by Carl Ehrlich, April 23 , 20 01, p. 9. [Callahan] Callahan, S., "Relating Functional Schematics to Hierarchical Mechanical Assemblies, " ... 10 11 to 10 12 to 10 12 to 15 12 to 14 13 to 14 16 to 15 Clearance (inches) 0.013 0.013 0.008 0.033 0.008 0.001 0.005 0.005 0.01 Clearance Ratio 0.040 0...

Ngày tải lên: 07/08/2014, 04:21

... Item 1.95 2. 18 1.95 3.06 1.95 1.95 1.95 2. 51 1.95 1.13 1.13 0.00 0.00 4.10 0.00 6.35 0.00 3.34 1.95 2. 45 0.00 1.95 2. 98 2. 98 2. 98 1.95 0.00 4.10 2. 98 1.13 0.00 Manual Insertion Code 30 38 30 40 30 30 30 00 30 00 00 98 98 08 98 12 98 44 12 12 98 02 39 39 39 00 98 00 39 00 98 insertion Time per Item 2. 00 6.50 2. 00 4.50 2. 00 2. 00 2. 00 1.50 2. 00 1.50 1.50 9.00 9....

Ngày tải lên: 07/08/2014, 04:21

... Assignments for Automatic Staple Gun Assembly System in Figure 16 -23 Station Parts 1 2 3 4 5 6 7 8 9 4,5,6 SI S4, 20 , 27 22 ,23 21 S3 S2 8 1-3,7 9. Should the buffers upstream (downstream) of ... Any Time 2 5 1 1 1 3 1 0 Size of Bin 17x7x2.5 17x7x2.5 17x7x2.5 17x7x2.5 17x7x2.5 17x7x2.5 17x7x2.5 17x7x2.5 Trays in Rack at Any Time 8 5 15 2 1 3 1 5 Size of Trays 17x7...

Ngày tải lên: 07/08/2014, 04:21

... 481 (a) (b) 1 2 3 4 -5- b / B 9 10 •11 12 -re- 14 15 -T6- T7~ IF" ~W 2U 21 22 23 24 25 26 27 28 '&) 30 31 32 ay 34 3b 3b 3/ 38 A 7 Year 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 B Years ... of mates 21 7 22 1 23 9 24 5 including fixture 22 1 22 2 Chamfer 1 52 263 27 2 304 388 409 alternate shapes 27 6 influence on ass...

Ngày tải lên: 07/08/2014, 04:21