ACKNOWLEDGEMENTS　謝辞

The authors are indebted to those who taught them.

Noriaki Ishii gratefully acknowledges the instruction and collegial support of Prof. Kensaku Imaichi (Osaka University), Prof. Tokio Uematsu (Osaka University), and Prof. Eduard Naudascher (University of Karlsruhe).

Keiko Anami extends her thanks to Prof. N. Ishii. and to Professor Izumi Ushiyama, Chairman of the Board of Directors and Institute Head, Ashikaga Institute of Technology, who provided her with both collegial and financial support while she was in Ashikaga.

Charles Knisely extends his thanks for the formal teaching and collegial support of Prof. D. Rockwell (Lehigh University), and the informal collegial teaching and assistance of Prof. S. Ziada (McMaster University), Dr. A. Schachenmann (Sulzer AG, Switzerland), Prof. D. Weaver (McMaster University), Prof. E. Naudascher (University of Karlsruhe), Prof. M. Morkovin (Illinois Institute of Technology), Dr. W. Blake (David Taylor Research Center), Dr. J. Gerschfeld (David Taylor Research Center), Prof. H. Nakagawa (Kyoto University), Prof. M. Matsumoto (Kyoto University), Prof. W. Frank (University of Siegen, Germany), Prof. K. Alexander (University of Canterbury, Christchurch, NZ), .Prof. A. da Silveira (Universidade Federal de Uberlandia,Brazil) and Prof. F. Mariano (Universidade Federal de Goias, Brazil).

We all would also like to acknowledge the support of our university administrators, including Chairman Kuniya Fukuda at Osaka Electro-communication University, President Izumi Ushiyama at Ashikaga Institute of Technology, and President J. Bravman at Bucknell University.

The authors would like to express their sincere gratitude to our collaborators who made substantial contributions to the material in this book, including the collection, analysis and reporting of significant data from model scale experiments and field tests for the flow-induced vibration of full-scale Tainter gates. At the risk of missing some collaborators we list representatives of various organizations:

Students from the Department of Engineering Science, Osaka University, represented byShinji Takemoto, Masahiro Yamasaki, Atsushi Tanaka, who supported Ishii’s research on vibration of eccentric Tainter gate in 1971 to 1975.

Many students (541 in number) from the Department of Mechanical Engineering, Osaka Electro-Communication University, represented by Masakazu Morinaga, Tadashi Mori, Tooru Yasuda, Tsunehisa Sanagi, Katsuhiro Oomori, Hidekazu Yoshioka, Hiroaki Suzuki, Takahiko Nojima, Tomio Maruyama, Akinori Nakata, Toshiaki Yamada, Koosaku Noda, Yuzuru Inoue, Takumi Tachibana, Naoko Yasuda, Tomoko Kawashima, Wataru Takano, Naoto Terakawa, Yoshito Uemura, Kazuaki Yagi, Shigeki Satoo, Masaru Gotou, Masashi Nakamura, Yasuhiro Takiuchi, Schuhei Satoi, Kazuhiro Sakaue, who worked very hard to conduct model experiments and field tests.

Students(40 in number) at Ashikaga Institute of Technology from the Department of Mechanical Engineering, represented by Tatsuya Motegi, Masaya Akutsu, Kouhei Mizuno, Takuya Ishizuka, Hiroki Takajitsuko, who worked very hard for model experiments and field tests.

Students at Bucknell University, Department of Mechanical Engineering, who assisted with laboratory experiments and preparation of the manuscript for this book, represented by Gordon Klein, Jacob Riglin, and Bradley Sedor.

Chubu Electric Power Company employees, represented by Masahiro Tanahasi, who helped us to conduct field measurements of skinplate pressure on the, requiring the drilling of a 6 mm-diameter hole through the skinplate was specially permitted for Anami’s doctoral dissertation. He died of a pancreatic cancer, just before the awarding of Anami’s doctoral degree.

Marushima Aqua-System Company employees, represented by Yukio Matsumoto, who helped us with substantial financial support enabling many investigations, for example, to identify the violent vibrations of 50-ton full scale Tainter gate, just before Anami’s doctoral dissertation. He also collaborated on the field testing for Thermalito Dam gate in USA.

USBR employees, represented byBill Joye, Mark Volkoff, James Taylor, Bill Nixon, Robert Todd, Rick Poeppelman, who helped with the Folsom Dam gate failure investigation just after the failure in 1995.

USACE employees, represented by John White, who helped us to conduct field tests on Folsom gate just after the failure in 1995; Steve Slinkard, who helped us conduct the field tests on the gates at the Thermalito Dam and the Poe Dam.

Department of Water Resources, State of California employees, represented by Mark G. Schultz, who helped us conduct field tests on the gates at the Thermalito Dam and the Poe Dam.
Pacific Gas and electric Company people, represented by Mohammad Aslam, who helped us conduct field tests on the gate at the Poe Dam.

There are many students whose work contributed to achieving so many successful studies.  Space precludes listing them all, but major contributors were Mr. Keiji Sakamoto, Dr. Akinori Nakata, Dr. Tatsuya Oku, and Dr. Takuma Tsuji.

Karin Knisely served as a proofreader for many of the chapters. We acknowledge her contribution to whatever clarity we have attained. Errors and grammatical mistakes are still those of the authors.

We would also be remiss in not thanking our families for the time we begged, borrowed, and stole from them to complete this manuscript and to undertake the many projects that contributed to it. Thank you for your patience, your understanding, your support and above all your love.

Lewisburg, PA, USA and Osaka, Japan
August 2016