NDLI: Estimation of maximum lifting load capacities of a hydraulic excavator via multibody computer modeling and simulation

Content Provider	Springer Nature Link
Author	Yoo, Wan Suk Kim, Oe Jo Kim, Kwang Suk Kang, Dong K. Yoon, Kyeong Hwa
Copyright Year	1998
Abstract	A three dimensional multibody modeling of a hydraulic excavator is developed to estimate the load capacities via computer simulation. For the modeling of the operating parts, 16 bodies are connected by the several kinematic joints with 4 dof (degrees of freedom). And 5 bodies are connected by joints with 6 dof in the modeling of supporting and carrier parts. There are total 22 bodies in the multibody excavator DADS model including the ground, and the system has 11 dof including the rotation about the swing axis. To model the force interaction between the track and the ground, two experimental results are measured and utilized to estimate the stiffness of the spring. A four-step algorithm is developed to estimate the spring constant combining the force and moment equilibrium equations with the experimental results. Using the estimated spring stiffness, the maximum lifting load capacities of a crawler type excavator in various positions are calculated. The calculated results are in a good agreement to the experimental results before the turnover occurs and are acceptable for the design data.
Starting Page	1090
Ending Page	1096
Page Count	7
File Format	PDF
ISSN	1738494X
Journal	Journal of Mechanical Science and Technology
Volume Number	12
Issue Number	6
Language	English
Publisher	Korean Society of Mechanical Engineers
Publisher Date	1998-01-01
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Multibody Modeling Computer Simulation Hydraulic excavator Load Capacity Mechanical Engineering Vibration, Dynamical Systems, Control Industrial and Production Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering

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