Preface

A propulsion system is an important subsystem that provides power for aerospace and marine vehicles as well as trains. The design of a propulsion system depends on the characteristics of the mission. New technologies have been applied to propulsion systems to improve efficiency and power and reduce energy consumption and pollution. This book focuses on technological advancements in propulsion systems in several areas. The field of aerospace research discusses impulse measurement methods for space micro-propulsion systems and matter/anti-matter propulsion. It also examines new measurement technology using polyvinylidene fluoride (PVDF) sensors for the vibration of components in propeller-shaft systems in marine propulsion. Furthermore, the book analyzes the reliability analysis for high-speed train traction systems and a new superstructure system for ballasted railways. Finally, the book discusses the application of nuclear propulsion in naval, aero, and space industries.

> **Longbiao Li** College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China

Section 1

Space Propulsion

**1**
