THE PARTIAL SEPARATION OF VARIABLES-FRACTIONAL STEPS DIFFERENCE METHOD FOR SOLVING 3-DIMENSIONAL ELASTIC WAVE FIELD IN CYLINDRICAL COORDINATE SYSTEM

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 1993, Vol. 10 ›› Issue (3): 297-308.

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THE PARTIAL SEPARATION OF VARIABLES-FRACTIONAL STEPS DIFFERENCE METHOD FOR SOLVING 3-DIMENSIONAL ELASTIC WAVE FIELD IN CYLINDRICAL COORDINATE SYSTEM

He Bairong¹, WangZhanbiao², Beijing Feng², Nie Yongan³, Jin Jiange⁴

1. Nankai University, Tiuniin 300071;
2. The Tianjin Bureau of Seismology, Tianjin 300201;
3. Beijing Architectural Engineering Institute Beijing 100044;
4. Center for Analysis and Prediction, SSB Beijing 100036

Received:1992-01-02 Revised:1993-02-21 Online:1993-09-25 Published:1993-09-25

Abstract

Abstract: An analytical-numerical method is developed for studying the diffraction of elastic wave by an abnormal cylinder embeded in layered media. The method is based on a combination of partial separation of variables and fractional steps difference techniques in cylin-drical coordinate system. For examining the efficiency of this method a calculation example is given.

Key words: cylindrical coordinate system, elastic wave field, separation of variables.fractional steps difference method

He Bairong, WangZhanbiao, Beijing Feng, Nie Yongan, Jin Jiange. THE PARTIAL SEPARATION OF VARIABLES-FRACTIONAL STEPS DIFFERENCE METHOD FOR SOLVING 3-DIMENSIONAL ELASTIC WAVE FIELD IN CYLINDRICAL COORDINATE SYSTEM[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1993, 10(3): 297-308.

THE PARTIAL SEPARATION OF VARIABLES-FRACTIONAL STEPS DIFFERENCE METHOD FOR SOLVING 3-DIMENSIONAL ELASTIC WAVE FIELD IN CYLINDRICAL COORDINATE SYSTEM

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