We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A Study on the Improvement of Acoustic Characteristics of Wheeled Armored Command Vehicles.
- Authors
Kim, Myoung Woon; Moon, Seong Mok; Kim, Ho Bum
- Abstract
The acoustic characteristics of Wheeled Armored Command Vehicles (WACV), a wheel-driven military combat vehicle, were improved by applying sound absorption materials. An analysis program was developed using index that can objectively evaluate the S&R (Squeak & Rattle) perceived subjectively by passengers, and the improvement of S&R and noise level at each stage of the study was confirmed. After the sound absorption material was selected in the material unit through analytical and experimental method based on Biot theory, the degree of improvement in acoustic characteristics during driving was evaluated while installing it in the vehicle. After installing the sound absorption materials on the partition wall of the engine room in the vehicle hull structure state, the vehicle was assembled and installed in the order of the interior top, side, and driver's cabin, and finally, engine encapsulation was performed to shield the engine surface with sound absorption materials. Through a series of processes, the noise level was improved by 8.76 dBA and S&R level by 9.64, and it was confirmed that the engine cooling performance was not deteriorated by the engine encapsulation through a temperature test using thermocouples.
- Subjects
ABSORPTION of sound; ARMORED military vehicles; ARMORED vehicles; MILITARY vehicles; THERMOCOUPLES
- Publication
International Journal of Automotive Technology, 2024, Vol 25, Issue 5, p977
- ISSN
1229-9138
- Publication type
Article
- DOI
10.1007/s12239-024-00091-x