A Static and Dynamic Analysis of A High-Speed Turbo Machine Foundation
A Static and Dynamic Analysis of A High-Speed Turbo Machine Foundation

Ameer A. Ahmed; Mohammed Y. Fattah; Makki K. Mohsen

Volume 41, Issue 11 , November 2023, , Page 1390-1402

https://doi.org/10.30684/etj.2023.142820.1547

Abstract
  The foundation plays a significant role in safe and efficient turbo machinery operation. Turbomachinery generates harmonic load on the foundation due to its high-speed rotating motion, ...  Read More ...
Experimental and Numerical Study of Spur Gears With Lightening Holes
Experimental and Numerical Study of Spur Gears With Lightening Holes

Almurtadha A. Ahmed; Ali R. Hassan

Volume 41, Issue 7 , July 2023, , Page 904-914

https://doi.org/10.30684/etj.2023.134713.1246

Abstract
  The gear is a very important component of power transmission in a flying vehicle and rotating mechanisms etc... In this paper, the dynamic effect and stresses generated as a result ...  Read More ...
Effect of Cracks on the Natural Frequency of Cylindrical Shell Structures
Effect of Cracks on the Natural Frequency of Cylindrical Shell Structures

Marwah . A. Husain; Mohsin A. Al-shammari

Volume 38, 12A , December 2020, , Page 1808-1817

https://doi.org/10.30684/etj.v38i12A.1513

Abstract
  Shell structures are liable to different kinds of defects and damage like cracking and corrosion which may destroy their structural safety and affect the service life. The cracks' effects ...  Read More ...
Finite Element Analysis of Suppression the Vibration of Dish Using Closed Loop Control System
Finite Element Analysis of Suppression the Vibration of Dish Using Closed Loop Control System

Nahedh Mahmood Ali

Volume 34, 8A , August 2016, , Page 1499-1513

https://doi.org/10.30684/etj.34.8A.3

Abstract
  A closed loop simulation is used for minimizing of undemanding vibration caused in the dish system. The finite element method is used to model the closed loop control via ANSYS- APDL. ...  Read More ...
Vibration Analysis of Laminated Composites Using Experimental and Genetic Algorithms Optimization Technique
Vibration Analysis of Laminated Composites Using Experimental and Genetic Algorithms Optimization Technique

Nabil Hassan Hadi; Kayser Aziz Ameen

Volume 30, Issue 18 , October 2012, , Page 3192-3218

https://doi.org/10.30684/etj.30.18.7

Abstract
  In this paper, damage detection for different types of defects (delamination, crackand hole) in the composite laminate plate and cylindrical shell be used to characterizethe vibration ...  Read More ...