The Online Books Page

Books by W. D. Iwan:

Books in the extended shelves:

• Iwan, W. D. (Wilfred D.): NATFREQ users manual : a FORTRAN IV program for computing natural frequencies, mode shapes, and drag coefficients for taut strumming cables with attached masses and spring-mass combinations (Naval Civil Engineering Laboratory, 1984), also by N. P. Jones, United States. Naval Facilities Engineering Command, and California Institute of Technology. Department of Civil Engineering & Applied Mechanics (page images at HathiTrust)
• Iwan, W. D. (Wilfred D.): Strong-motion earthquake instrument arrays : proceedings of the International Workshop on Strong-Motion Earthquake Instrument Arrays, May 2-5, 1978, Honolulu, Hawaii (California Institute of Technology, 1978), also by Hawaii) International Workshop on Strong-Motion Earthquake Instrument Arrays (1978 : Honolulu, Unesco, National Science Foundation (U.S.), and International Association for Earthquake Engineering (page images at HathiTrust)
• Iwan, W. D. (Wilfred D.): The Wilmot survey type strong-motion earthquake recorder (The U.S.G.S. seismoscope), Part II (Pasadena, 1960), also by Donald E. Hudson (page images at HathiTrust)

Find more by W. D. Iwan at your library, or elsewhere.