A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hybrid Excavator Shafting Torsional Vibration Analysis
Hybrid excavator shafting finite element analysis model was established. Modal calculation results show that compared with traditional excavator, hybrid excavator shafting first modal frequency is decreased significantly. First modal shape and second modal shape are torsional vibration. Hybrid excavator shafting torsional vibration dynamic analysis model was established, dynamic calculation results show that cylinder pressure change is main reason of shafting torsional vibration. Maximum torsional angle is occurred at 2f0. Hybrid excavator shafting torsional vibration experimental table was established and maximum torsional angel experiments under different throttle angle were carried out. Experimental results show that maximum torsional angle is occurred at 2f0 under different rotate speed. Incentive frequency of shafting torsional vibration under different rotate speed is mainly concentrated in 0.5f0~2f0. Main drive source of hybrid power system shafting torsional vibration is diesel engine, not motor.
Hybrid Excavator Shafting Torsional Vibration Analysis
Hybrid excavator shafting finite element analysis model was established. Modal calculation results show that compared with traditional excavator, hybrid excavator shafting first modal frequency is decreased significantly. First modal shape and second modal shape are torsional vibration. Hybrid excavator shafting torsional vibration dynamic analysis model was established, dynamic calculation results show that cylinder pressure change is main reason of shafting torsional vibration. Maximum torsional angle is occurred at 2f0. Hybrid excavator shafting torsional vibration experimental table was established and maximum torsional angel experiments under different throttle angle were carried out. Experimental results show that maximum torsional angle is occurred at 2f0 under different rotate speed. Incentive frequency of shafting torsional vibration under different rotate speed is mainly concentrated in 0.5f0~2f0. Main drive source of hybrid power system shafting torsional vibration is diesel engine, not motor.
Hybrid Excavator Shafting Torsional Vibration Analysis
Applied Mechanics and Materials ; 268-270 ; 1262-1265
2012-12-27
4 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2007
Torsional vibrations in continuous shafting subjected to periodic stresses
| Engineering Index Backfile | 1911
| European Patent Office | 2016
Torsional vibrations in steam turbine shafting in turbogenerator abnormal modes of operation
| British Library Online Contents | 2012