Estimation of Truck Frame Fatigue Life under Service Loading

The article presents the methods for experimental and theoretical research of vibration loads and dynamic stresses of automobile frame. The comparative analysis of the finite element stress and acceleration is performed with SolidWorks and Ansys software with the use of resistive strain gages and g-...

Full description

Saved in:
Bibliographic Details
Published in:Procedia engineering 2016, Vol.150, p.318-323
Main Authors: Savkin, A.N., Gorobtsov, A.S., Badikov, K.A.
Format: Article
Language:English
Subjects:
fatigue life
finite element method
frame analysis
multibody dynamics
spectrum loading
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The article presents the methods for experimental and theoretical research of vibration loads and dynamic stresses of automobile frame. The comparative analysis of the finite element stress and acceleration is performed with SolidWorks and Ansys software with the use of resistive strain gages and g-meters data obtained during automobile road tests. Frame fatigue life calculation of using multibody dynamics model in FRUND software is given. Load-carrying structures of automobiles undergo external loads which are time- and frequency-variable, depending on velocity, current weight, road profile and other factors. Such loading mode provokes the occurrence of fatigue cracks, and their promotion can entail fracture. Thus, frames and load-carrying structures are subjects of cyclic loading tests purposed to estimate stress level and reliability of the structures and detect possible failures. The motion was considered for following road types: concrete road, smooth cobblestone road and special cobblestone profile. Road types and automobile velocities are corresponding to input data for dynamic simulation in FRUND multibody dynamics system.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2016.07.020