Abstract
The parting line design for vehicle door is an indispensable step at the phase of auto-body conceptual design, and also the premise of door kinematic analysis. Combined the CATIA CAA platform characteristics with the hinge layout features, we propose an intelligent and semiautomatic algorithm for parting line design and build a layout and checking module based on CATIA software platform. The present method, which originates from an introduced procedure of hinge layout, could define two envelop curves called K-Lines to judge if the given parting line is reasonable. It calculates the minimum clearance size between doors and surrounding parts on each section by using a transform with some settled parameters. In reverse, when the sizes are set to 0s, a serial of extreme start and end points help the engineer to design two new parting lines. An example is carried out with our module and the position relationship between K-lines and parting line are analyzed. The results show that our method has great feasibility and validity to design the parting line and shorten the design periods.
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