Dynamic Stability of a Conical Pipe, Conveying Fluid and Resting on a Winkler Elastic Foundation
Main Article Content
Abstract
This paper presents an application of the Generalized Differential Quadrature Method (GDQM) to analyze the stability problem of a fluid-conveying conical pipe, clamped at both ends and resting on a Winkler elastic foundation. The main focus is on quantifying the impact of the rigidity of the elastic foundation on the critical fluid velocity, which is the velocity at which the pipe loses stability. A numerical solution was performed for a straight pipe conveying fluid with specified geometric and physical characteristics, where the rigidity of the elastic foundation and the density of the conveyed fluid were considered as parameters. The obtained results, visualized through graphical relationships between the critical velocity and the foundation's rigidity for various densities of the fluid, demonstrate the significant effect of elastic supports on the vibrational behavior and stability of the pipe. The validity of the presented GDQM approach is confirmed by comparison with results obtained using the Transfer Matrix Method (TMM), showing good agreement.
The contribution of this paper lies in presenting a methodology for solving the differential equation describing the lateral displacements of conical piping systems, as well as in a critical assessment of the advantages and disadvantages of GDQM compared to established methods for the dynamic analysis of fluid-conveying pipes.
Downloads
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Journal author rights
In order for Romanian Journal of Acoustics and Vibration to publish and disseminate research articles, we need publishing rights. This is determined by a publishing agreement between the author and Romanian Journal of Acoustics and Vibration. This agreement deals with the transfer or license of the copyright to Romanian Journal of Acoustics and Vibration and authors retain significant rights to use and share their own published articles. Romanian Journal of Acoustics and Vibration supports the need for authors to share, disseminate and maximize the impact of their research and these rights, in Romanian Journal of Acoustics and Vibration proprietary are defined below:
For subscription articles:
Authors transfer copyright to the publisher as part of a journal publishing agreement, but have the right to: Share their article for personal use (manuscript version); retain patent, trademark and other intellectual property rights (including research data); proper attribution and credit for the published work.
For open access articles:
Authors sign an exclusive license agreement, where authors have copyright but license exclusive rights in their article to the publisher. In this case authors have the right to: share their article in the same ways permitted to third parties under the relevant user license; retain patent, trademark and other intellectual property rights (including research data); proper attribution and credit for the published work.
Rights granted to Romanian Journal of Acoustics and Vibration
For both subscription and open access articles, published in proprietary titles, Romanian Journal of Acoustics and Vibration is granted the following rights:
- The exclusive right to publish and distribute an article, and to grant rights to others, including for commercial purposes;
- For open access articles, Romanian Journal of Acoustics and Vibration will apply the relevant third party user licence (Open access licencses) where Romanian Journal of Acoustics and Vibration publishes the article on its online platforms;
- The right to provide the article in all forms and media so the article can be used on the latest technology even after publication;
- The authority to enforce the rights in the article, on behalf of an author, against third parties, for example in the case of plagiarism or copyright infringement.