Second Edition Preface
This edition of Principles of Tribology, based on the first edition, is formed by revising the inadequacies
of the original edition and its being improved in response to the hotspots of recent
tribology research. Since the book was first published, the readers have offered various suggestions
and opinions, and given the developments in tribology research, we thought it necessary
to make this revision of the book.
Although one important task for this edition was to make some error corrections, it retains
the basic framework of the first edition, with 21 chapters in three parts.
Also, in response to the rapid development of high-speed railways and the implementation
of the lunar exploration project in China, rolling friction has become more important, so it is
brought into a separate chapter (11). Although in the previous version, rolling frictionwas mentioned
as a typical phenomenon of friction, we only gave some basic definitions. In Chapter 11,
we give more detail on rolling friction definitions, rolling friction theories and stick-slip phenomena
in rolling friction, as well as contact and heat generation of rolling friction between
wheel and rail. In fact, rolling friction exists widely in transportation, automobile, machinery
manufacturing, production and daily life, and it has functions which cannot be substituted by
sliding friction.
Another new area of content in this edition is tribology research in MEMS
(micro-electromechanical system) covered in Chapter 20. This includes the application
of atomic force microscopy in tribology of MEMS, micro motor tribology research and micro
analysis of wear mechanisms. This content is focused on recent tribology research and the
rapid development of MEMS.
Also, ecological tribology, a hot topic in tribology research, has been introduced in
Chapter 21. This chapter includes zero friction and superlubrication, green lubricating oil,
friction-induced noise and its control, plus remanufacturing technologies and self-repairing
technology. Ecological tribology research will become an important research direction for the
future.
Of course, the new content is far more than just rolling friction, MEMS tribology and green
tribology, but limited space here precludes more detailed coverage of the additions. We hope
that the contents of the book will be more systematic and accurate in this edition.
We present our most sincere thanks to our colleagues and graduate students for their enthusiastic
support, and to all the others who have provided help and made a contribution to the
development of tribology research in general and this edition in particular.
March 2016 Wen Shizhu
Huang Ping