유한요소 해석 프로그램 (Pre-processor)
- Patran Begionner's Guide(http://iblogbox.com/pig/docview/v.php?url=http://www-h.eng.cam.ac.uk/help/documentation/docsource/patran2004.pdf)
- Patran menual(http://iblogbox.com/pig/docview/v.php?url=http://wavedance.googlepages.com/msc_nastran.pdf)
/등가 빔 요소 생성