Ön gerilmeli monotron tipi halatın deneysel ve teorik doğal frekans analizi

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.

Theoretical and experimental analysis of prestressed monotron type wire rope

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.

PDF

___

Kösemen, Ö., Asansör Taşıyıcı Halatlarının Statik Yük Altında Deneysel Gerilme Analizi, Yüksek Lisans Tezi, İTÜ Fen Bilimleri Enstitüsü, İstanbul, 2008.
Jiang W., G., Yao M., S., Walton J., M., A Concise Finite Element Element Model For Simple Straight Wire Rope Strand, International Journal of Mechanical Sciences, 41:143-161, 1999.
Ghoreishi S.R., Messager T., Cartraud P., Davies P., Validity and Limitations of Linear Analytical Models For Steel Wire Strands Under Axial Loading Using a 3D FE Model, International Journal of Mechanical Sciences, 49:1251-1261, 2007.
Spak K., Agnes G., Inman D., Cable Modelling and Internal Damping Devolepments, Applied Mechanics Reviews, 65 10801:1-18, (2013).
Stanova E., Federko G., Fabian M., Kmet S., Computer Modelling of Wire Stands and Ropes Part 1: Theory and Computer Implementation, Advances in Engineering Software 42:305-315, 2011.
Stanova E., Federko G., Fabian M., Kmet S., Computer Modelling of Wire Stands and Ropes Part 2: Finite Element Based Applications, Advances in Engineering Software 42:322-331, 2011.
Wu J., The Finite Element Modelling of Spiral Ropes, International Journal of Coal Science Technology 1(3): 346-353, 2014.
Yu Y., Chen Z., Liu H., Wang X., Finite Element Study of Behavior and Interface Force Conditions of Seven Wire Strand Under Axial and Lateral Loading, Construction and Building Materials, 66:10-18, 2014.
Feyrer K., Wire Ropes Tension, Endurance, Reliability, Second Edition, Springer, Berlin, 2015.
Zweifel O., Zugkraftmessung in Drahtseilen mit Transversalwellen, Schweizerische Bauzeitung, 79:347-358, 1961.
Lee H., Finite Element Simulations with Ansys Workbench 15, First Edition, SDC Publications, Kansas, 2014.
Ansys Release 14.0 Mechanical User’s Guide, Ansys Inc., 2011.