Developing the geometrical classification of non-cylindrical folds

2nd International Conference on Sustainable Engineering Techniques

工业技术（总论）

Haify, N.N.^1

Institute of Technology, Middle Technical University, Baghdad, Iraq^1

关键词: Geometrical classification;    Non-cylindrical;    Planarity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/518/2/022006/pdf
DOI  :  10.1088/1757-899X/518/2/022006

学科分类：工业工程学

来源: IOP

【 摘 要 】

This classification discusses most of the single and independent folds arisen in nature which are geometrically called non-cylindrical folds. This study worked on developing one of the most accurate classifications to describe the non-cylindrical folds which are presented by previous research.A new variable value was generated; it is called the factor (New) and its symbol (N). This value represents a non-planarity degree of axial surface of folds, factor (N) mathematically depends on the value of angle obtained at the side curvature of the axial surface along the extent of hinge line of folds; this angle is called factor (Wavy) and its symbol (W). Factor (N) and angle (W) were added to factors of geometrical classification of non-cylindrical folds according to previous research.The new, sophisticated, integrated and comprehensive classification was given by adding the new factor (N), where it processed the gaps and defects existed in geometrical classifications dealt with the non-cylindrical folds which have plane axial surface or non-plane axial surface, especially those folds that the classification of previous researches could not give them an accurate geometrical description as the one given by the present classification.