Abstract:
Gate type selection is very important for mould design. Improper
gate type may lead to poor product quality and low production
efficiency. Although numerical simulation approach could be used
to optimize gate location, the determination of gate type is
still up to designers’ experience. A novel method for selecting
gate type based on fuzzy logic is proposed. The proposed
methodology follows three steps：Design
requirements for gate is extracted and generalized; Possible
gate types (design schemes) are presented; The fuzzy mapping
relationship between gate design requirements and gate design
scheme is established based on fuzzy composition and fuzzy
relation transition matrices that are assigned by domain
experts.
Key words:
Gate type selection Fuzzy logic
Received April 30, 2001; received in
revised form June 12, 2001; accepted October 8, 2001
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