About this Book
This book presents a new scientific discovery about the nonlinear instability and inertial coupling effects for aircrafts, land vehicles, and ships. It focuses on the dynamic instability and inertial couplings of the rotational motions of these vehicles and provides analytical solutions for the nonlinear governing equations without linearization. A nonlinear stability theorem is proved analytically, numerically, and experimentally. The threshold for the nonlinear instability is given. The book covers topics such as the fundamental mistakes in automotive, aviation, and naval architecture industries; energy flow patterns of aircrafts, ships, land vehicles, and rigid body torque-free motion; the nonlinear solution of vehicle dynamics; nonlinear instabilities and inertial coupling effects of ships, aircrafts, and land vehicles. It reveals the mechanisms of broaching and capsizing of ships; a phase locked-in phenomenon for ships; Dutch roll, wing rock, Pilot-Induced-Oscillation (PIO), and upset of aircrafts; un-commanded roll, pitch, and yaw of aircrafts; and rollover of land vehicles. The unique feature of this book is to provide scientific analyses and explanations for the root causes for 2 aircraft incidents and 16 aircraft crashes based on the FDR data, for 2 Ro/Ro ship capsizes, 2 cruise ship capsizes. An Inertial Coupling Factor is proposed to measure the effect of the inertial coupling. A Dynamic Stability Factor is proposed to indicate how dynamically stable a vehicle is. It provides evidences based on the analytical analyses, the numerical simulations, the physical experiments, and the highway fatality data to prove that the Anti-Brake System and Electronic Stability Control cause more rollover and fatalities. Autopilot of aircrafts is proved to cause some nonlinear instabilities and crashes. Three recipes for aircraft crashes during takeoff, landing approach, and cruise leveling are given. A mechanical demonstrator is also given.
Dr. Steve Shaojie Tang’s expertise is in the fields of nonlinear dynamics of ships, aircrafts, and land vehicles. He earned a bachelor’s degree in mechanics from Peking University in 1982, a master degree in hydrodynamics from Peking University in 1989, a Ph.D. in Aerodynamics from Beihang University in 1992, and a Ph.D. in mechanical engineering from the Levich Institute of CUNY in 1997. He worked as a research engineer in ship motions for American Bureau of Shipping from 1997 to 2011. He is the founder of NIICE Technology corporation to promote technologies in the field of the Nonlinear Instability and Inertial Coupling Effects to save lives in the transportation industries.