Machine Elements: Life and Design

Series:
Mechanical and Aerospace Engineering Series
Published:
September 14, 2007 by CRC Press - 456 Pages
Author(s):
Boris M. Klebanov, Beer Sheva, Israel; David M. Barlam, Ben Gurion University, Beer Sheva, Israel; Frederic E. Nystrom, Racine, Wisconsin, USA

Purchasing Options

Hardback
$149.95
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ISBN 9780849395635
Cat# 9563
 

Features

  • Represents a machine as a system that changes in its dimensions, surface conditions, and material conditions
  • Addresses parts and units common to all machines
  • Presents real-world calculations and examples
  • Includes techniques for checking calculations
  • Features extensive end-of-chapter references

    • Summary

    Focusing on how a machine "feels" and behaves while operating, Machine Elements: Life and Design seeks to impart both intellectual and emotional comprehension regarding the "life" of a machine. It presents a detailed description of how machines elements function, seeking to form a sympathetic attitude toward the machine and to ensure its wellbeing through more careful and proper design.

    The book is divided into three sections for accessibility and ease of comprehension. The first section is devoted to microscopic deformations and displacements both in permanent connections and within the bodies of stressed parts. Topics include relative movements in interference fit connections and bolted joints, visual demonstrations and clarifications of the phenomenon of stress concentration, and increasing the load capacity of parts using prior elasto-plastic deformation and surface plastic deformation.

    The second part examines machine elements and units. Topics include load capacity calculations of interference fit connections under bending, new considerations about the role of the interference fit in key joints, a detailed examination of bolts loaded by eccentrically applied tension forces, resistance of cylindrical roller bearings to axial displacement under load, and a new approach to the choice of fits for rolling contact bearings.

    The third section addresses strength calculations and life prediction of machine parts. It includes information on the phenomena of static strength and fatigue; correlation between calculated and real strength and safety factors; and error migration.

    Table of Contents

    PART I - DEFORMATIONS AND DISPLACEMENTS
    DEFORMATIONS IN MECHANISMS AND LOAD DISTRIBUTION OVER THE MATED
    SURFACES OF PARTS
    References

    MOVEMENTS IN RIGID CONNECTIONS AND DAMAGE TO THE JOINT SURFACES
    Interference-Fit Connections (IFCs)
    Bolted Connections (BCs)
    Damage to the Mating Surfaces in the Slip Area
    References

    DEFORMATIONS AND STRESS PATTERNS IN MACHINE COMPONENTS
    Structure and Strength of Metals
    Deformations in the Elastic Range
    ElastoPlastic Deformation of Parts (EPD)
    Surface Plastic Deformation (SPD)
    References

    PART II - ELEMENTS AND UNITS OF MACHINES
    SHAFTS
    Selecting the Basic Shaft Size
    Elements of Shaft Design
    Hollow Shafts
    Selection of a Loading Layout for Strength Analysis
    Analysis of Shaft Deformations
    References

    SHAFT-TO-HUB CONNECTIONS
    General Considerations and Comparison
    Interference-Fit Connections
    Design and Strength Calculation of Key Joints
    Splined Joints
    References

    SUPPORTS AND BEARINGS
    Types and Location of Supports
    Rolling Bearings (RBs)
    Sliding Bearings (SBs)
    References

    GEARS
    Geometry and Kinematics of Gearing
    Forces in Spur Gearing and Stresses in Teeth
    Kinds of Tooth Failure
    Contact Strength (Pitting Resistance) of Teeth
    Bending Strength (Breakage Resistance) of Gear Teeth
    Unevenness of Load Distribution Across the Face Width (Factor Kw)
    Dynamic Load in the Gear Mesh and Factor K
    Load Distribution in Double-Helical Gears (Factor KWh)

    Backlash in the Gear Mesh
    Lubrication of Gears
    Cooling of Gears
    References

    GEAR DESIGN
    Gear and Shaft: Integrate or Separate?
    Spur and Helical Gears
    Built-up Gear Wheels
    Manufacturing Requirements and Gear Design
    Bevel Gears
    Design of Teeth
    References

    HOUSINGS
    The Function of Housings
    Materials for Housings
    Design of Housings
    Housing Seals
    References

    BOLTED CONNECTIONS (BCs)
    Load Distribution between the Bolts
    Tightening of Bolts
    Correlation between Working Load and Tightening Force of the Bolt
    Strength of Fasteners
    References

    CONNECTION OF UNITS
    Housing Connections
    Shaft Connections
    References

    PART III - LIFE PREDICTION OF MACHINE PARTS
    STRENGTH OF METAL PARTS
    Strength of Metals
    Strength of Machine Elements
    Comparative Calculations for Strength
    Real Strength of Materials
    References

    CALCULATIONS FOR STRENGTH
    Characteristics of Stresses in the Part
    Safety Factors
    Errors Due to Inappropriate Use of FEM
    Human Error
    References

    FINALE

    INDEX

    Editorial Reviews

    …seeks to impart both intellectual and emotional comprehension regarding the ‘life’ of a machine. It presents a detailed description how machine elements function…. The authors address parts and units common to all machines , and they present real world calculations and examples.
    — Mechanical Engineering, Vol. 130, No. 3

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