Hybrid Excavator Shafting Torsional Vibration Analysis

Zhong Hua Huang; Ya Xie; Yi Deng

doi:10.4028/www.scientific.net/AMM.268-270.1262

Paper Titles

The Dynamic Simulation of a Long Distance Natural Gas Pipeline
p.1244

Spring’s Multi-Objective Optimal Design in Pre-Positioned Fixture of Shaft Pressing and Assembling Machine
p.1249

Development of 4UMS-2700 Cassava Harvester
p.1253

Vibration Experiment of Shearer Walking Unit
p.1257

Hybrid Excavator Shafting Torsional Vibration Analysis
p.1262

Influences of Main Parameters on Performance of Seed-Filling Device in Plot Seeder
p.1266

Rocker Mechanism Study of Crank Angle between Extreme Positions
p.1270

Research on Sag and Phase-Phase Space Change by Installing Interphase Spacers for Transmission Lines
p.1274

Research on the Design Loads of a Surface Warship
p.1279

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 268-270Hybrid Excavator Shafting Torsional Vibration...

Hybrid Excavator Shafting Torsional Vibration Analysis

Abstract:

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.