Du, Delei
Song, Jian
Li, Yana
Li, Xingyan
Liu, Fangyu
Xu, Jianxin
Article History
Received: 23 June 2025
Revised: 18 November 2025
Accepted: 17 December 2025
First Online: 9 April 2026
Conflict of interest
: Enclosed is a copy of the manuscript by Delei Du, Jian Song, Yana Li, Xingyan Li, Fangyu Liu and Jianxin Xu titled “Adaptive Gray Wolf Optimization Algorithm for the Optimization of Metro Underframe Structures”. Neither the content has been published nor has been accepted elsewhere. It is not being submitted to any other journal. The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.