Exhaust system gap simulation analysis method based on multi-body dynamics

The invention relates to an exhaust system gap simulation analysis method based on multi-body dynamics, which comprises the following steps of: establishing a digital road surface: establishing a tire model, separating a surface layer of a tire from a main body, and representing a cord fabric, a ste...

Full description

Saved in:
Bibliographic Details
Main Authors ZHU XUEWU, HAN CHAO, SUN JIAXING, ZHAO XINGMING
Format Patent
LanguageChinese
English
Published 03.02.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:The invention relates to an exhaust system gap simulation analysis method based on multi-body dynamics, which comprises the following steps of: establishing a digital road surface: establishing a tire model, separating a surface layer of a tire from a main body, and representing a cord fabric, a steel wire and rubber in a tire structure by adopting 80-200 belt nodes with concentrated mass; establishing a multi-body dynamic model, and establishing a complete multi-body dynamic model by using information such as hard points, quality, rigidity information and topological relation; the exhaust system is flexible; debugging a multi-body dynamic model; establishing displacement monitoring; performing digital test field simulation; and performing gap analysis. According to the method, the exhaust system is subjected to flexible treatment, and the calculated gap is more accurate; displacement monitoring is established between the exhaust system and the vehicle body, nodes in a small-range area are selected to be in r
Bibliography:Application Number: CN202210509326