The influence of the change of the longitudinal modulus of elasticity on the dynamic behavior of a Warren truss

Authors

  • Zeno-Iosif PRAISACH Lect. Dr. Eng. Habil., Babeș-Bolyai University, Department of Engineering Science, Cluj-Napoca, Romania, zeno.praisach@ubbcluj.ro (*corresponding author) https://orcid.org/0000-0002-8613-8224
  • Dan Alexandru PÎRȘAN PhD. Stud., Babeș-Bolyai University, Department of Engineering Science, Cluj-Napoca, Romania, dan.pirsan@ubbcluj.ro https://orcid.org/0000-0002-6447-3515

DOI:

https://doi.org/10.24193/subbeng.2022.1.19

Keywords:

Warren truss, slenderness ratio, modal analysis, relative frequency shift.

Abstract

Trusses are commonly used structures and they are present in the most constructions because it use a small amount of material and for the loads they can support. The paper presents the dynamic behavior of a Warren truss with seven elements when for one member of the truss the modulus of elasticity is much different compared to the other elements. The relative frequency shift for the first seven vibration mode are calculated taking into consideration that the slenderness ratio has a constant value and the transverse section of the elements is changed. The conclusions reveal that by maintaining the constant value of a slenderness ratio, the relative frequency shift is not modified for the considered transverse sections of the elements of the Warren truss.

References

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Millan-Paramo C., Millan-Romero E., Jove F., Truss optimisation with natural frequency contraints using Tiki-Taka algorithm, PalArch's Journal of Archaeology of Egypt/Egyptology, PJAEE, 18 (5), 2021, pp. 304-314.

STUDIA UBB ENGINEERING, Volume 67 (LXVII), No. 1, November 2022

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Published

2022-11-11

How to Cite

PRAISACH, Z.-I., & PÎRȘAN, D. A. (2022). The influence of the change of the longitudinal modulus of elasticity on the dynamic behavior of a Warren truss. Studia Universitatis Babeș-Bolyai Engineering, 67(1), 201–208. https://doi.org/10.24193/subbeng.2022.1.19

Issue

Volume 67, No. 1, November 2022

Section

Articles

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Copyright (c) 2022 Studia Universitatis Babeș-Bolyai Engineering

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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