Nonlinear modeling and interference analysis for double-steel-wheel vibratory roller
[1]Shen Peihui,Lin Shuwen.Nonlinear modeling and interference analysis for double-steel-wheel vibratory roller[J].Journal of Zhengzhou University (Engineering Science),2017,38(02):66-.[doi:10.13705/j.issn.1671-6833.2017.02.015]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
38
Number of periods:
2017 02
Page number:
66-
Column:
Public date:
2017-04-28
- Title:
- Nonlinear modeling and interference analysis for double-steel-wheel vibratory roller
- Keywords:
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double-steel-wheel vibratory roller; nonlinear jump-vibration model; apparent vibratory soil; transmission; interference
- CLC:
- -
- Abstract:
- According to the structural characteristics and double-excitation mode of the double-steel-wheel vibratory roller,a seven-degrees-of-freedom jump-vibration model was established fully considered the nonlinear coupling of apparent soil to the compacted system.Taking YZC12 compactor as an example and basing on the decomposition idea of coupling-decoupling-recoupling,the nonlinear vibration response of the system was analyzed in the three representative compaction conditions of smooth contact,slight impact and strong collision.Results showed that,the kinetic offsets between the front and rear wheels were the main reason of the transmission interference.With the change of soil parameters representing different density,the time domain waveform of system became harmonic distortions.The first order,second order and fourth order frequency would generate sub-harmonics and ultra-harmonics until into continuous spectrum of chaos the compaction process.In addition,driving speed mainly affected the vibratory parameters of the front back apparent soils,and then affected the movement interference of the front and rear wheels.Through active controlling the damping system parameters of the frame and the two wheels,the nonlinear vibration responses of the system could be obviously weakened,as well as the transmission interference of the front and rear wheels.
- References:
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