A new method for generating virtual models of nonlinear helical springs based on a rigorous mathematical model

• Autorzy: Michalczyk Krzysztof , Warzecha Mariusz , Baran Robert

Identyfikatory

DOI

10.35784/acs-2023-17

• Języki publikacji: EN

Abstrakty

EN

This paper presents a new method for generating nonlinear helical spring geometries based on a rigorous mathematical formulation. The model was developed for two scenarios for modifying a spring with a stepped helix angle: for a fixed helix angle of the active coils and for a fixed overall height of the spring. It allows the development of compression spring geometries with non-linear load-deflection curves, while maintaining predetermined values of selected geometrical parameters, such as the number of passive and active coils and the total height or helix angle of the linear segment of the active coils. Based on the proposed models, Python scripts were developed that can be implemented in any CAD software offering scripting capabilities or equipped with Application Programming Interfaces. Examples of scripts that use the developed model to generate the geometry of selected springs are presented. FEM analyses of quasi-static compression tests carried out for these spring models showed that springs with a wide range of variation in static load-deflection curves, including progressive springs with a high degree of nonlinearity in characteristics, can be obtained using the proposed tools. The obtained load-deflection curves can be described with a high degree of accuracy by power function. The proposed method can find applications in both machine design and spring manufacturing.

Słowa kluczowe

EN

helical spring; spring design; spring stiffness; load-deflection curve; spring geometry

• Wydawca: Polskie Towarzystwo Promocji Wiedzy ; Lublin University of Technology
• Czasopismo: Applied Computer Science
• Rocznik: 2023
• Tom: Vol. 19, no 2
• Strony: 96--111
• Opis fizyczny: Bibliogr. 26 poz., fig., tab.

Twórcy

autor

Michalczyk Krzysztof

• AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Machine Design and Maintenance, Poland

• https://orcid.org/0000-0002-1024-5947

autor

Warzecha Mariusz

• AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Machine Design and Maintenance, Poland

• https://orcid.org/0000-0002-7417-1561

autor

Baran Robert

• AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Machine Design and Maintenance, Poland

• https://orcid.org/0000-0002-0711-230X

Bibliografia

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