Modeling System Dynamic Coupling in Powertrain-like Structures The University of Alabama

Format:

Conference/Event

Author/Creator:

Pan, Ren, author.

Conference Name:

SAE 2001 Noise & Vibration Conference & Exposition (2001-04-30 : Grand Traverse, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2001

Summary:

The feasibility of applying a dynamic sub-structuring approach to model and analyze the vibration response of critical automotive components in its coupled vehicle state is examined using an idealized beam-flange-plate system. The beam-flange component is regarded as the primary component of interest while the plate is assumed to be the base structure. Both modal and spectral-based formulations are considered, which account for the true dynamic coupling/interaction between the component of interest and base structure. For the modal-based sub-structuring approach, a unique modeling scheme that utilizes a set of multi-point constraint equations for representing the transformation matrix between the modal coordinates of the base structure and the physical coordinates of the primary component is applied. On the other hand, the spectral-based approach relies on the frequency response functions of the base structure directly to predict the overall system response spectra. The former method is generally found to work well in systems with lightly damped, well-separated resonances, while the latter one can be used to analyze structures with higher modal density and damping characteristics

Notes:

Vendor supplied data

Publisher Number:

2001-01-1418

Access Restriction:

Restricted for use by site license