A general scheme to create complex triple helical wire rope model using parametric equations

Abstract

Finite Element Analysis of wire ropes made big influence on researchers last decade. Requirement of an correct 3D wire rope model is the most important issue during analysis. To accomplish such a good model with error free surface representation for helical wires are mostly very difficult even sometimes impossible for some kind of helical shapes. This paper aims to show how to construct such an complicated wire rope model. For this purpose parametric mathematical equations of the single, double and triple wire models are represented. Proposed triple helical wire rope model is constructed by using a code instead of ready use commercial 3D software for material design. The constructed model can be adopted to any analysis tool to find numerical results. 

Keywords

• Single helical,double helical,triple helical,wire rope model,helical geometry modeling,complex helical modeling

Parametrik denklemleri kullanarak karmaşık üçlü sarmal halat modeli oluşturmak için genel bir şema

Abstract

Tel halatlarla ilgili yapılan Sonlu Eleman Analiz çalışmaları araştırmacılar arasında son on yılda büyük ilgi uyandırmıştır. Analiz çalışmaları sırasında doğru üç boyutlu tel halat modelleri ihtiyacı en önemli gerekliliktir. Böyle yüzey hatalarından arındırılmış bazı helisel şekillerin bir katı modelini oluşturmayı başarmak çoğunlukla çok zor hatta bazı zamanlar imkansız olmaktadır. Makalenin amacı bu tür karmaşık bir tel halat modelinin oluşturulmasını göstermeye çalışmaktır. Bu amaçla tekli, ikili ve üçlü tel halat modellerine ait parametrik matematik denklemler gösterilmiştir. Önerilen üçlü helisel halat modeli tasarımı hazır üç boyutlu tasarım uygulamaları kullanılmadan, özgün olarak geliştirilmiş bir kod yardımıyla oluşturulmaktadır. Tasarlanan model herhangi bir analiz aracına uyumlu hale getirilerek sayısal çözümler elde edilebilir.

Keywords

• Tek helisel,çift helisel,üçlü helisel,tel halat modeli,helisel yapı modeli,karmaşık helisel modelleme

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