公开(公告)号：US11900908B2

公开(公告)日：2024-02-13

申请号：US17170828

申请日：2021-02-08

Applicant: CITIC Dicastal Co., Ltd

Inventor： Xi Li ,  Zuo Xu ,  Zhihua Zhu ,  Shiwen Xu ,  Shide Li ,  Shaobing Huang ,  Mingbo Chen ,  Minglei Li

IPC: G10K11/172 ,  B60B21/12 ,  B33Y80/00 ,  G10K11/162

CPC classification number: G10K11/172 ,  B33Y80/00 ,  B60B21/12 ,  G10K11/162

Abstract: The application relates to a wheel with a sound absorption device, wherein the sound absorption device is arranged in a wheel air chamber to reduce acoustic resonance, the sound absorption device comprises two resonance sound absorption structure units which are connected in parallel, a first sound absorption frequency band of a first resonance sound absorption structure unit and a second sound absorption frequency band of a second resonance sound absorption structure unit are adjacent to each other or partially overlap with each other, and the resonance frequency of the wheel air chamber is contained at the adjacent part of the first sound absorption frequency band and the second sound absorption frequency band or in the overlapping area of the first sound absorption frequency band and the second sound absorption frequency band.

公开(公告)号：US10386270B2

公开(公告)日：2019-08-20

申请号：US15417681

申请日：2017-01-27

Applicant: CITIC Dicastal CO., LTD

Inventor： Chunhai Liu ,  Qiang Liu ,  Shide Li ,  Zhigao Yin

IPC: G01M17/007 ,  G01M17/013

Abstract: The invention provides a method for simulating real impact test of vehicle wheels, and the method is implemented using a system as follows: the system includes a vehicle used in wheel simulating real impact test, a road surface, a high-frequency lighting facility, a standard obstacle block, a high-speed camera, and a traction motor and steel cable. The method for simulating real impact test of vehicle wheels of the invention has the advantages that: the need for testing various types of wheels using one set of equipment can be satisfied by using a general type collision trolley, thereby avoiding the use of a corresponding real vehicle for each type of wheels in the test. This greatly reduces the test cost, ensures that the test condition is similar to the real vehicle condition, and can well simulate the performance of a real vehicle when meeting an obstacle.