Gu Y. Engineering Dimensions, Units, and Conversions 2025

Textbook in PDF format

Engineering Dimensions, Units, and Conversions delves into the analysis and application of the dimensions, units, and unit conversions in engineering practical use. It demonstrates the importance of dimensional homogeneity and unit consistency.
Offering a comprehensive exploration of both primary and secondary units, the book presents detailed portrayals of various unit systems in both the English system and the International System (SI). It provides insight into conversion ratios and introduces software-based methodologies. The book also examines dimensioning in drawings, including dimensioning basics and numerous exercises of object and system dimensioning.
The book will be a valuable reference for practicing engineers and researchers engaged in engineering research and development. It will also be of interest to undergraduate and graduate students in engineering disciplines.
Preface
Introduction
Dimensions
Units
Unit Conversions
Dimensional Analysis
Equation Calculations with Units
Dimensioning Objects on Engineering Drawings
Dimensioning Pipes and Ducts of Pipe and Duct Systems
Appendix
A.1 The International System of Units
A.2 Quantities, Dimensions, and Units of the SI and the English Systems
A.3 Unit Conversions
A.4 Decimal and Thousands Separators
A.5 Non-SI Units Accepted for Use with the SI
A.6 Decision of the CGPM and the CIPM
A.7 Dimensionless Numbers Named after People
A.8 FE Mechanical Exam and PE M