NDLI: Study on the Structural Analysis Method of Wheel Loaders Based on Static and Dynamic Measurements

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Choung, Joonmo Kim, Gyusung Jang, Youngsik Choe, Ickhung Heo, Minsoo
Copyright Year	2004
Abstract	This paper presents several investigations for improved structural analysis method of wheel loaders based on the static and dynamic measurements including strength and motion characteristics. Physical quantities such as stresses, hydraulic cylinder pressures and strokes were obtained from static tests for prepared operating scenarios. The dynamic measurements were also carried out for two types of motions: simple reciprocations of a boom and a bucket and actual working motion including traveling, digging and dumping. It was shown from static measurements that static stress level induced by the bucket cylinder operation was higher than that by the boom cylinder operation. It was confirmed from dynamic measurements that stress histories during actual working seemed to be static rather than dynamic. A fully assembled finite element model was prepared for structural analysis. A practical trial and error scheme was adopted in order to handle non-linearity caused by lift-up of wheels. For both measurements and structural analysis, it was shown that structural behaviors with the brake on were quite different from those with brake off. Sensitivity analysis showed that there was much difference between digging forces from conventional formula and structural analysis.
Sponsorship	Design Engineering Division
Starting Page	709
Ending Page	714
Page Count	6
File Format	PDF
ISBN	0791847055
DOI	10.1115/IMECE2004-59486
Volume Number	Design Engineering
Conference Proceedings	ASME 2004 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2004-11-13
Publisher Place	Anaheim, California, USA
Access Restriction	Subscribed
Subject Keyword	Bell crank Roll back Boom Digging force Bucket Tire stiffness Turning traveling Link Errors Finite element model Hydraulic cylinders Sensitivity analysis Wheels Turning Stiffness Tires Brakes Stress Structural analysis Cylinders
Content Type	Text
Resource Type	Article

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