Transient Response of Hydraulic Engine Mount to a Realistic Excitation: Improved Non-Linear Models and Validation Acoustics and Dynamics Laboratory, The Ohio State University

Format:

Conference/Event

Author/Creator:

He, Song, author.

Conference Name:

SAE 2007 Noise and Vibration Conference and Exhibition (2007-05-15 : St. Charles, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

Competing linear, quasi-linear and non-linear hydraulic mount formulations of fixed and free decoupler types are comparatively evaluated for transient responses. First, features of the realistic excitation conditions are addressed. For instance, the mean load itself may vary with time, and several sinusoidal or transient excitations may be simultaneously present. Second, a multi-staged top chamber compliance model is proposed to capture asymmetric transient responses given step-up (-down) excitations. Third, implicit excitations introduced by the decoupler switching mechanism are identified at the odd harmonics of the explicit excitation frequency. Fourth, discontinuous model of bottom chamber compliance is proposed depending on the operating point(s) and/or dynamic loading. Some of the discrepancies observed between prior models and measurements can be explained using new models

Notes:

Vendor supplied data

Publisher Number:

2007-01-2365

Access Restriction:

Restricted for use by site license