Browse Publications Technical Papers 2006-01-0880
2006-04-03

Investigation on Coupled Torsional-axial Vibration of Crankshaft Based on Rayleigh Differential Method 2006-01-0880

This paper presents the principle and method of calculation for the coupled torsional-axial vibration of crankshaft for a high speed diesel engine based on Rayleigh differential method. At first, the internal combustion engine crankshaft was simplified to a continuous stepped shaft model and the kinetic formulas of shafts and masses were constructed. By means of the Lagrange formulation, the motion equation of torsional vibration and axial vibration were deduced. According to coupled principle and excited force of shafting system, a model of coupled torsional-axial forced vibration can be constructed. Applying a vector matrix, a single order or a whole system vibration can be analyzed. With a newly designed testing device, the axial and torsional vibrations of the crankshaft at the free-end of a 4-cylinder diesel engine were measured. Compared with the practical measurement results, the calculated results are to be in agreement in main order.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

FE Analysis of Crankshaft Torsional Vibrations for Selection of Damper Pulley

962490

View Details

TECHNICAL PAPER

Recovery of Fault Signatures in Diesel Engines

880824

View Details

TECHNICAL PAPER

Balancer Shaft Development for an In-line 4-Cylinder High Speed Diesel Engine

2008-36-0219

View Details

X