Deformation Forecast of Flexible Material Process By Spline Finite Element Method and Application

Abstract

This paper provides a new computing method for the amount of deformation of flexible materials by spline finite element. Firstly, it analyzes the deformation of single yarn in the way of cubic spline interpolation, with the idea of spline finite element; it takes the flat fabric as anisotropic material to build a simple surface model with the use of bicubic interpolation, so as to deduce to the formula of flat fabric's deformational displacement under the stress. Finally, it takes the line graphic element for object to get the amount of deformation and to compensate it in quilting, test result show that theposition error scope of quilting is 0.093~0.186mm, the accuracy is higher than excellence grade of quilting which refers to national standard FZ/T81005-2006.

Research of Processing Deformation Compensation of Flexible Leather Material Based on Knowledge Management

“…Many leather cutting resources related knowledge, the text is selected leather cutting large deformation processing of raw materials such as knowledge processing knowledge, tools knowledge, knowledge of process parameters and CNC machine tools to build the knowledge base of knowledge, according to the actual situation can also add other knowledge. Examples of records processed leather cutting information, in order to facilitate the recording, from leather material information, the process recording and processing quality in these three areas its expression [7]. The decision-making process involving inductive knowledge, reasoning, knowledge representation and processing of its resources and processing different instances, and a wide range temporarily classify.…”