Theoretical and experimental analysis of prestressed monotron type wire rope

Year 2017, Volume: 21 Issue: 5, 978 - 989, 01.10.2017

Cihan Demir , Erkan Ala

https://doi.org/10.16984/saufenbilder.298755

Abstract

Natural frequency analysis of prestressed monotron ropes with single helix angles of different types with different diameters was theoretically and experimentally performed in this study. Analytical formulas have been used in the theoretical analysis. In addition to this, the solid model of rope was created and natural frequency analysis was performed by the finite element method. In the experimental study, the natural frequency analysis was carried out by using the impulse hammer under various loads by establishing simple supported boundary conditions of the prestressed cable. The results of the experimental and theoretical analyzes were evaluated to determine how the natural frequency of the rope changes under the pretension stress applied, depending on the diameter of the rope and the number of wires.

Keywords

prestressed monotron type wire rope, natural frequency, finite element method

Ön gerilmeli monotron tipi halatın deneysel ve teorik doğal frekans analizi

Abstract

Bu çalışmada farklı çaplara sahip farklı tiplerdeki tek helis açısına sahip ön gerilmeli monotron halatların doğal frekans analizi teorik ve deneysel olarak yapılmıştır. Teorik analizde daha önce çıkartılmış analitik formüllerden yararlanılmıştır. Bununla birlikte halat katı modeli oluşturularak sonlu elemanlar yöntemi ile doğal frekans analizi yapılmıştır. Deneysel çalışmada, ön gerilmeli kablonun basit mesnetli sınır şartları oluşturularak çeşitli yükler altında darbe çekici ile doğal frekans analizi gerçekleştirilmiştir. Deneysel ve teorik analizlerin sonuçları değerlendirilerek, halat doğal frekansının uygulanan ön gerilme kuvveti altında, halat çapına ve tel sayısına bağlı olarak nasıl değiştiği incelenmiştir. 

Keywords

: ön gerilmeli monotron halat, doğal frekans

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