Computer Aided Engineering Design
SOLID MODELING 263 protruding flat face with 10 vertices, 15 edges, 7 faces and no holes with a shell value 1. Even though the E ...
264 COMPUTER AIDED ENGINEERING DESIGN Operator VEFL SG Result MSFV +1 + 1 + 1 + 1 MEV +1 +1 MEV +1 +1 MEV +1 +1 MEV +1 +1 MEV +1 ...
SOLID MODELING 265 MFE +1 +1 +1 (Right face made) MFE +1+1+ 1 (Back face made) MFE +1 +1 +1 (Left face made) MFE +1 +1 +1 (Front ...
266 COMPUTER AIDED ENGINEERING DESIGN Figure 8.20 Primitive solids used in constructive solid geometry Figure 8.21 Designing an ...
SOLID MODELING 267 Block 2, respectively which may be identified by the three dimensions (length, width and height) and the loca ...
268 COMPUTER AIDED ENGINEERING DESIGN in Figure 8.23 (b), the way is to instantiate two cylinders, transform (scale and translat ...
SOLID MODELING 269 solid if there exists an open ball B of radius r centered at Q such that the ball does not intersect with the ...
270 COMPUTER AIDED ENGINEERING DESIGN The cross-section contour is often chosen to lie on a plane. The contour should be closed ...
SOLID MODELING 271 8.11 Manipulating Solids Manipulations on primitives are performed on a routine basis in solid modeling. Set ...
272 COMPUTER AIDED ENGINEERING DESIGN intersection between the bounding surfaces of two primitives. Related are the issues of de ...
SOLID MODELING 273 positions between the shank and head, and shank and threads should not change, i.e., the three features shoul ...
274 COMPUTER AIDED ENGINEERING DESIGN 6.Choose two machine parts (one component and one assembly) of reasonable complexity from ...
Chapter 9 Computations for Geometric Design Finding intersection between curves, surfaces and solids are much used operations in ...
276 COMPUTER AIDED ENGINEERING DESIGN Δ = 1 1 1 11 22 33 xy xy xy (9.2) PointC can relate to AB in three possible ways (Figure 9 ...
COMPUTATIONS FOR GEOMETRIC DESIGN 277 (a) Point C lies to the left of AB (following the convention of moving from A to B) if Δ i ...
278 COMPUTER AIDED ENGINEERING DESIGN ΔABC = 201 501 0–41 = –12. Similarly ΔABD = 12, ΔACD= –16 and ΔBCD= – 40 SinceΔABC and ΔAB ...
COMPUTATIONS FOR GEOMETRIC DESIGN 279 that of CD is x = 3 + s(3 – 3), y = – 4 + s(4 + 4), 0 ≤s≤ 1. Solving for tands gives t = 1 ...
280 COMPUTER AIDED ENGINEERING DESIGN xxxx yyyy zz z t s xx yy zz B ACD B ACD B ACD CA CA CA – – – z = ⎡ ⎣ ⎢ ⎢ ⎢ ⎤ ⎦ ⎥ ...
COMPUTATIONS FOR GEOMETRIC DESIGN 281 convex polygon if it lies to the left of all the edges (maintaining counterclockwise trave ...
282 COMPUTER AIDED ENGINEERING DESIGN Example 9.3. A quadrilateral is defined by A (1, –1), B (0, 5), C (–1, –1) and D (0, 3). D ...
«
10
11
12
13
14
15
16
17
18
19
»
Free download pdf