Powerplant Block-Crank Dynamic Interaction and Radiated Noise Prediction Ford Motor Company

Format:

Conference/Event

Author/Creator:

Zhou, Ming, author.

Conference Name:

SAE 2003 Noise & Vibration Conference and Exhibition (2003-05-05 : Grand Traverse, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2003

Summary:

This paper discusses flexible, multi-body, coupled dynamic simulation of a crankshaft system acting upon a power plant structure that includes an engine block, cylinder heads, oil pan, crank train (id est, crankshaft, connecting rods, bearings et cetera) and transmission. The simulation is conducted using AVL/EXCITE [1]. Engine loads are first predicted, and then used to compute radiated noise from the engine assembly. Radiated noise level is computed by sweeping the excitation frequency through a range associated with the normal operating RPM of the engine. The results of the radiated noise computation are plotted on a "3D" Campbell plot diagram. The effects of different crankshaft materials is evaluated by imposing steel and cast iron material properties on the analysis model. A design of experiment (DOE) study is also performed to investigate the effects of main and rod bearing clearance, damper, and flexplate design on overall engine radiated sound power.This unique tool, used in the early and middle phases of design, is helpful in selecting engine components and crank train system parameters to produce better powertrain NVH performance

Notes:

Vendor supplied data

Publisher Number:

2003-01-1735

Access Restriction:

Restricted for use by site license