✦ LIBER ✦
An envelope finite-element time-domain method using weighted Laguerre polynomials as temporal expansion functions
✍ Scribed by Liguo Yang; Derek A. McNamara; Xiangjun Meng
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 77 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
The advantage of the envelope finite-element time-domain (EFETD) method compared to the direct finite-element time-domain (FETD) method is that a much larger time step can be used. Although both approaches use the Newmark-Beta technique for time-stepping, it has recently been demonstrated for the FETD method that weighted Laguerre polynomials may be profitably used as temporal expansion functions, obviating the need for the time-stepping scheme. In this paper, the incorporation of such temporal expansion functions into the EFETD method is proposed and demonstrated.