A SUPPLEMENTARY CONDITION FOR CALCULATING PERIODICAL VIBRATIONS

✍ Scribed by T. JI; D. WANG

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 208 KB
• Volume: 241
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.2000.3318

✦ Synopsis

Fourier series are often used to study structural vibrations induced by periodical loads. However, there is a hidden error when the response is expressed by introducing a phase lag, which makes the expression more concise. This article identi"es what the error is and introduces a supplementary condition to avoid such an error.

Periodical vibrations can be expressed by a Fourier series as follows [1]: