Analysis of discretization for transient impact loads on door closing Tongji Univ

Format:

Book

Conference/Event

Author/Creator:

Liu, Zhe, author.

Contributor:

Chen, Jiaju

Gao, Yunkai

Ma, Chao

Xu, Xiang

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

The transient impact loads generated when the door is closed is used as the input condition of the closing condition, which is an important part of the investigation on the door system. This article introduces the basic theory of Transfer Path Analysis (TPA). Aiming at the abnormal vibration of the front-left door with a glass down stall position of a certain vehicle during the closing process. The transient impact loads are discretized under the door closed. The inverse matrix (IM) method in the TPA is used to obtain the discretized transient impact loads. Vehicle test and bench test are established in this article. When the door is closed, it is subjected to the transient impact loads of the sealing strip and the latch on the body side. In the vehicle test, the acceleration sensor is pasted on the target point and reference point on the door to obtain the acceleration vibration response when the door is closed. In the bench test, when the hammer strikes the excitation points, the frequency response functions (FRFs) from the excitation points to the reference points and the excitation points to the target point are recorded by the acceleration sensors on the door. The vibration amplitude of the front-left door with a glass down stall position is taken as the criterion. Finally, a reasonable discretization number of the door closing transient impact loads are obtained, which provides guidance for the subsequent research of the door system

Notes:

Vendor supplied data

Publisher Number:

2021-01-0799

Access Restriction:

Restricted for use by site license