Klebanov / Barlam / Nystrom Machine Elements

Life and Design
Erscheinungsjahr 2007
ISBN: 978-1-4200-0949-1
Verlag: Taylor & Francis
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 456 Seiten

Reihe: Mechanical and Aerospace Engineering Series

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.

Zielgruppe

Practitioners, researchers, and students in machine design and mechanical engineering.

Autoren/Hrsg.

Klebanov, Boris M.

Barlam, David M.

Nystrom, Frederic E.

Fachgebiete

• Technische Wissenschaften Maschinenbau | Werkstoffkunde Maschinenbau

Inhaltsverzeichnis

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