ENGLISH

Bicycling science

By Theodor Bernhard Schmidt; David Gordon Wilson; Jim Papadopoulos

Book information

Year
2020
ISBN
9780262538404, 0262538407
Language
english
Format
PDF
Filesize
23 MB (24242592 bytes)
Edition
Fourth
Pages
\566
Time added
2021-02-06 08:17:23

Description

Contents Preface In Memoriam David Gordon Wilson 1 A Short History of Bicycling Introduction Early History The First Bicycle The Second Step: Pedaling Propulsion The High-Wheeler or Ordinary Tricycles and Quadracycles Final Improvements to the Ordinary The Third Step: The Arrival of the Modern Safety Bicycle Waxing and Waning Enthusiasm All-Terrain Bicycles Recumbents Power-Assisted Bicycles References 2 Human Power Generation Introduction Measuring Human Power Output Describing Pedaling Performance Quantitatively Physiology of Pedaling: A Primer Energetics in Pedaling Pedaling Forces Effects of Body Position, Pedaling Motion, and Rate Thermal Effects (How Cyclists Keep Cool) References 3 Speed Achievements and Racing Introduction Bicycle Definitions, Event Rules, and Organizations Human-Powered Speed Seen (Pre)Historically Climbing The Need for Speed 200-Meter Time Trials with Run-Up and Flying Start Time Trials with Standing Start Improving Performance: Progress or Cheating? References 4 Power and Speed Introduction Air Resistance Slope Resistance Measuring Slope Rolling Resistance Bump Resistance Acceleration Power Required at a Given Speed Speed Achieved at a Given Power Online Tools and Computer Simulations Measurement of On-Road Resistance and Power Insights Regarding Power and Drag Bicycles versus Other Means of Locomotion References 5 Bicycle Aerodynamics Introduction Drag and Drag Coefficient Reducing the Aerodynamic Drag on Bicycles Other Aerodynamic Phenomena Sailing Bicycles and Faired HPVs References 6 Rolling: Tires and Bearings Introduction Some Historical Notes Basic Rolling Resistance Bicycle Wheels Rolling Resistance: Observations, Theory, and Correlations Examples of Correlations for Different Conditions Lateral Properties of Tires References 7 Braking Introduction Bicycle Brakes Power and Energy Absorption of Brake Surfaces Minimum Braking Distances for Stable Vehicles Longitudinal Stability during Braking Wet-Weather Braking Transmission of Braking Force Other Developments in Bicycle Braking Braking Power and Rim Temperatures Reached during Downhill Braking References 8 Steering, Balancing, and Stability Introduction Special Characteristics Affecting Bicycle Steering Wheeled-Vehicle Configurations Broomstick Analogy How Bicycles Balance Effect of Bicycle Configuration on Steering and Balancing Stability Shimmy References 9 Power Transmission and Hybrid Systems Introduction Transmission History Transmission Types and Their Losses Positive Drives Nonpositive Drives Other Transmissions Transmission Efficiencies of Chain Drives and Gear Systems Hybrid Power-Assist Systems References 10 Special Human-Powered Machines Introduction Human-Powered Lawn Mowers Human-Powered Snow Removers Kick Scooters Human-Powered Vehicles for People with Disabilities Human-Powered Snow and Ice Vehicles Human-Powered Speed Machines Human-Powered Rail Cycles Human-Powered All-Terrain Vehicles Human-Powered Recumbent Vehicles Velomobiles Human-Powered Multirider Machines and Road Trains Cargo Bicycles Human-Powered Water Vehicles Human-Powered Aircraft References 11 Human-Powered Vehicles for Transportation Introduction Government Regulations and Incentives Bicycle Usage and Infrastructure Transportation Systems Based on Human-Powered Vehicles References Index

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