Whistle identification and solution of a heavy truck transmission
WANG Zirun
OUYANG Heng
LIN Bo
QIAO Xianghe
ZHU Ye
YU Fang
WU Ronghua
Abstract：[Objective]A heavy truck's ten-speed transmission was taken as the research objective,the whistling problem under the rapid acceleration in 6th,7th,and 8th gears was analyzed and solved.[Methods]The order tracking method was used to determine the source of whistling,the gear was optimized through the computer aided engineering(CAE),and the optimization plan was verified through the vehicle noise vibration and harshness(NVH)testing.[Results]It is discovered that by adjusting the gear order,improving the gear contact ratio,and micro-modification of gears,the problem of whistling can be effectively solved.
Keywords：Heavy truck transmissionTransmission whistleGear orderGear contact ratioGear micro-modification
Publication Date：2025-07-31
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：9( 160-168 )