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Abstract:
A framework
on heterogeneous material part (HMP) modeling is proposed based on voxel
model. The multiple material models and the functionally gradient models
are mainly described. Fixed reference feature (FRF) and active gradient
source (AGS) are introduced so that the efficiency and the flexibility
of modeling process can be strengthened. An operator for the models with
multiple AGSs and different directional FRFs is defined. And the Boolean
operators, such as intersection, union and difference, are extended to
HMP modeling. Then, two modeling examples are presented.
Key words:3D
CAD model Voxel-based model Heterogeneous material part
Fixed reference feature Active gradient source
CLC No: TP391.4
国家863高科技资助项目(7150080050).
Received 20030305, received in revised form 20030915
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