1985-05-15

Research on Idling Rattle of Manual Transmission 850979

Generation mechanism and characteristics of idling rattle are systematized analytically by experiments on vehicle and digital simulation of nonlinear torsional vibration system for an inline four-cylinder four-cycle compact diesel engine.
Jumping and hysteresis of the noise level are caused by both decreasing engine torque fluctuations while engine rotating velocity increases, and clutch-disc torsional characteristics of two-staged hardening spring. An improved clutch disc with a decreased noise level of 5 dB (A) was developed clarifying the optimum combination of disc characteristics, and permitting engine rotating velocity, where jumping occurs, below idling rotating velocity.

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

Elastomeric Flexible Exhaust Decoupler Separates Engine Motion from Exhaust System - Next Generation of Exhaust Systems

2005-01-2365

View Details

JOURNAL ARTICLE

Multi-Point Mesh Modeling and Nonlinear Multi-Body Dynamics of Hypoid Geared System

2013-01-1895

View Details

TECHNICAL PAPER

Gear Noise Reduction through Transmission Error Control and Gear Blank Dynamic Tuning

1999-01-1766

View Details

X