Technological design of parts using layered fabric composite

Abstract

The article considers the features of solving the problem of designing complex shape constructions made from layered fabric composites considering the triad "material-technology-construction". Based on the developed models, the design problem is formulated in terms of non-linear mathematical programming. The novelty is the approach to choosing the main design variables by dividing the digital model of the product into structural and technological groups, which pro-vide a quick and visual search for a rational distribution of material in the structure using a genetic optimization algo-rithm. The proposed approach is a development of the “precision design” methodology. It ensures the technological feasibility of composite items with a layered structure and their high weight return with minimal modifications at the early stages of design. The application of the technique is shown on the example of solving the problem of designing a composite bracket for the spoiler hinge of a modern passenger aircraft. Comparison of the designed bracket made of a layered fabric composite with a metal counterpart showed a significant reduction in the weight of the bracket.