This preview shows page 1. Sign up to view the full content.
Unformatted text preview: raint is expressed by the signed distance between each potential point of contact part holder/workpiece. The signed distance has to remain positive. In the case of hole/pin assembly it could be expressed with 2 non-linear inequation (top and down) or with n linear inequation if the top and down circles are discretized. See an example in the following inequalities where R2 and R2S2 are respectively the nominal radius of hole 2 and pin 2S2, and ra2 and r2S2 the radius variations.
− R 2 + R 2S2 − r2S2 + ra 2 − − R 2 + R 2S2 − r2S2 + ra 2 − ( lty ( lty 2S2 + 5 ( rx1 − rx1S2 − rx 2 + rx 2S2 ) ) + ( ltx 2S2 + 5 ( ry1 + ry1S2 + ry 2 − ry 2S2 ) ) > 0
2 2 2S2 − 5 ( rx1 − rx1S2 − rx 2 + rx 2S2 ) ) + ( ltx 2S2 − 5 ( ry1 + ry1S2 + ry 2 − ry 2S2 ) ) > 0
2 2 Simulation of the Manufacturing Process 5. CONCLUSION 189 Some papers already presented the way to simulate assembly operations for functional tolerance analysis [Sodhi et al., 1994] [Thiebaut, 2001] [Dantan, 2000] [Anselmetti et al., 2003]. The present paper applies this approach to co...
View Full Document
- Spring '10
- The Land