Discrete model for 3D motion of helical springs. Issue 1 (January 2022)

• Record Type: Journal Article
• Authors: De Crescenzo, F; Salvini, P
• Is Part Of: IOP conference series. Volume 1214:Issue 1(2022)
• Publication Date: 2022-01
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/1214/1/012025
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Large displacements of coiled springs are affected by both contact between coils and geometric non-linearities. The two phenomena also interact with each other and the only technology that efficiently accounts for both is Finite Elements Method (FEM). Such analysis can become very expensive, especially when a great number of elements and contacts are involved, as it is often the case. A discrete 3D model for fast and efficient simulation of non-linear springs is presented. The discrete model is based on equivalent beam theory and each node is associated with a contact region placed on the helix. Thus contact is accounted on its real occurrence and fast non-linear solution procedure is implemented. A study case is presented and comparison with FEM is discussed.