ZHAI Xiao-yang, FU Jing-li. Study on Symmetries and Conserved Quantities of Vehicle Body Vibration Systems[J]. Applied Mathematics and Mechanics, 2015, 36(12): 1285-1293. doi: 10.3879/j.issn.1000-0887.2015.12.007
Citation: ZHAI Xiao-yang, FU Jing-li. Study on Symmetries and Conserved Quantities of Vehicle Body Vibration Systems[J]. Applied Mathematics and Mechanics, 2015, 36(12): 1285-1293. doi: 10.3879/j.issn.1000-0887.2015.12.007

Study on Symmetries and Conserved Quantities of Vehicle Body Vibration Systems

doi: 10.3879/j.issn.1000-0887.2015.12.007
Funds:  The National Natural Science Foundation of China(11272287;11472247)
  • Received Date: 2015-05-07
  • Rev Recd Date: 2015-08-22
  • Publish Date: 2015-12-15
  • Symmetries and conserved quantities of vehicle body vibration systems were studied with the Lie group method. The vertical translational vibration and the pitching vibration around the mass center were addressed by means of the Lagrangian functions to construct the vehicle body vibration model. According to this vibration system, the Noether symmetry theory and the Lie symmetry theory were derived via the introduction of the Lie group method. The existence of the Noether symmetries and the Lie symmetries of the system were proved with the corresponding conserved quantities obtained. This work provides a new symmetry solution to the vehicle body vibration problem, and meanwhile expands the application scope of the Lie group method.
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