Visualization of Frequency Response Using Nyquist Plots Birla Institute of Technology and Science

Format:

Book

Conference/Event

Author/Creator:

Bhatnagar, Alok Vijay, author.

Contributor:

Malen, Donald E.

Conference Name:

WCX SAE World Congress Experience (2022-04-05 : Detroit & Online, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2022

Summary:

Nyquist plots are a classical means to visualize a complex vibration frequency response function. By graphing the real and imaginary parts of the response, the dynamic behavior in the vicinity of resonances is emphasized. This allows insight into how modes are coupling, and also provides a means to separate the modes. Mathematical models such as Nyquist analysis are often embedded in frequency analysis hardware. While this speeds data collection, it also removes this visually intuitive tool from the engineer's consciousness. The behavior of a single degree of freedom system will be shown to be well described by a circle on its Nyquist plot. This observation allows simple visual examination of the response of a continuous system, and the determination of quantities such as modal natural frequencies, damping factors, and modes shapes. Vibration test data from an auto rickshaw chassis are used as an example application. It is hoped that this return-to-fundamentals will help a new generation of engineers take advantage of this useful tool

Notes:

Vendor supplied data

Publisher Number:

2022-01-0753

Access Restriction:

Restricted for use by site license