Title
Matching Model of Dual Mass Flywheel and Power Transmission Based on the Structural Sensitivity Analysis Method.
Abstract
As a new torsional vibration absorber, the dual mass flywheel (DMF) contains a symmetric structure in which the damping element is a pair of springs symmetrically distributed along the circumference direction. Through reasonable matching parameters, the DMF functions in isolating torsional vibrations caused by the engine from the transmission system. Our work aims to solve the accuracy of matching models between the DMF and power transmission system. The critical structural parameters of each order modal are treated consecutively by two methods: Absolute sensitivity (e.g., under the idle condition and driving condition), and relative sensitivity. The operation achieves a separation of the parameters and diagnosis of the relationship between these parameters and the natural frequency in the system. In addition, the natural frequency range is determined based upon the area of the resonance speed. As a result, the matching model is established based on the sensitivity analysis method and the natural frequency range, which means the moment of inertia distribution (its coefficient should be used as one structural parameter in relative sensitivity analysis) and the torsional stiffness in multiple stages can be observed under the combined values. The effectiveness of the matching model is verified by experiments of a real vehicle test under the idling condition and driving condition. It is concluded that the analysis study can be applied to solve the parameters matching accuracy among certain multi-degree-of-freedom dynamic models.
Year
DOI
Venue
2019
10.3390/sym11020187
SYMMETRY-BASEL
Keywords
Field
DocType
dual mass flywheel,absolute sensitivity,relative sensitivity,torsional vibration,spring
Natural frequency,Moment of inertia,Torsion (mechanics),Mathematical analysis,Flywheel,Torsional vibration,Transmission system,Vibration,Power transmission,Mathematics
Journal
Volume
Issue
Citations 
11
2
0
PageRank 
References 
Authors
0.34
1
4
Name
Order
Citations
PageRank
Lei Chen101.01
xiao zhang210330.75
Zhengfeng Yan301.01
Rong Zeng42510.40