Experimental study on modal characteristics of flame tube in a can type combustor in aero-engine Online publication date: Mon, 21-Mar-2022
by Guanbing Cheng; Yinsheng Chai
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 21, No. 4, 2021
Abstract: The flame tube is a key component in the combustor of the gas turbine engine. It is important to understand the structure dynamic characteristics of the tube. The present paper used both FEM and experiment modal method to examine the vibrating modal characteristics of a flame tube in a can type combustor. Its first six orders' modal parameters such as frequency and mode were obtained, respectively. The calculated results show that the flame tube vibrates along x- and y-directions. The tangential vibration with several circumferential waves and few horizontal half waves was observed. The tube's lower order resonant frequencies vary from 145 to 600 Hz, and its higher order frequencies are about 1000 Hz. The first three orders' frequencies of the tube in experiment are lower by about 30% than those by FEM method, but the calculated last three orders' frequencies are consistent with the experimental ones.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Wireless and Mobile Computing (IJWMC):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook