Soft soil track interaction modeling in single rigid body tracked vehicle models |
| |
| Institution: | 1. Department of Civil and Environmental Engineering, Gachon University, Seongnam, Republic of Korea;2. Department of Civil and Environmental Engineering, Seoul National University, Seoul, Republic of Korea;1. Department of Civil and Environmental Engineering, Seoul National University, Seoul, South Korea;2. Construction Automation Research Center, Korea Institute of Civil Engineering and Building Technology, Goyang, South Korea;3. Underground Space Safety Research Center, Korea Institute of Civil Engineering and Building Technology, Goyang, South Korea;1. Vehicle Systems Development Corporation, Toronto, Ontario, Canada;2. U.S. Army Tank Automotive Research, Development and Engineering Center, Warren, MI, USA;3. National Research Council of Canada, Ottawa, Ontario, Canada;1. Department of Civil & Environmental Engineering, Mississippi State University, Mississippi State, 39762, USA;2. Center for Advanced Vehicular Systems (CAVS), Mississippi State University, Mississippi State, 39762, USA;3. Eustis Engineering L.L.C., Metairie, LA 70002, USA;4. U.S. Army Engineer Research and Development Center (ERDC), 3909 Halls Ferry Road, Vicksburg, MS 39180, USA |
| |
| Abstract: | Single rigid body models are often used for fast simulation of tracked vehicle dynamics on soft soils. Modeling of soil-track interaction forces is the key modeling aspect here. Accuracy of the soil-track interaction model depends on calculation of soil deformation in track contact patch and modeling of soil resistive response to this deformation. An algorithmic method to calculate soft soil deformation at points in track contact patch, during spatial motion simulation using single body models of tracked vehicles, is discussed here. Improved calculations of shear displacement distribution in the track contact patch compared to existing methods, and realistically modeling plastically deformable nature of soil in the sinkage direction in single body modeling of tracked vehicle, are the novel contributions of this paper. Results of spatial motion simulation from a single body model using the proposed method and from a higher degree of freedom multibody model are compared for motion over flat and uneven terrains. Single body modeling of tracked vehicle using the proposed method affords quicker results with sufficient accuracy when compared to those obtained from the multibody model. |
| |
| Keywords: | Soil track interaction Tracked vehicle |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
