참고문헌
- API Standard 617, 2002, Axial and Centrifugal Compressors and Expander -compressors for Petroleum, Chemical and Gas Industry Services, 7th Ed
- API Recommended Practice 684, 2005, API Standard Paragraphs Rotordynamic Tutorial: Lateral Critical Speeds, Unba1ance Response, Stability, Train TorsionaIs, and Rotor Balancing, 2nd Ed