محاضرة بعنوان تصميم الأعمدة والخوابير – Shafts & Key Design Lecture

محاضرة بعنوان
تصميم الأعمدة والخوابير
Shafts & Key Design Lecture
Shaft Design Issues
Shaft arrangement
Fundamental Problem in Shaft Design
Interference Fits Standards
Limits and Fits (Metric Nomenclature)
definition
Tolerance Grade Numbers
Tolerance Grades Table
Fundamental Deviations
Lower and Upper Deviations
Preferred Hole Basis Fits
Preferred Shaft Basis Fits
Description of Preferred Fits
American National Standard Preferred Hole Basis Metric Clearance Fits
Loose Running Fit: Example
Force Fit (Example)
Relation of Machining Processes to Tolerance Grades
Keys and Keyseats
Types of Keyseats
Keyway Fabrication Methods
Keyway type and fatigue stress concentration factor Kf
Shaft keys
Square and Rectangular Parallel Keys
Square and Rectangular Key Geometry
Tapered Keys
Gib Head Keys
Woodruff Keys
Circular (Pin) Keys
Set Screws
Representative Holding Power Values
Tapered Bushings
Taper and screw
Key Hub to Shaft Connections
Rigid Couplings
Flexible Couplings
Universal joint
Stress Analysis of Parallel Keys
Shear Stress Analysis of Square and Rectangular Parallel Keys
Required Key Length: Shear
Bearing Stress: Square and Rectangular Parallel Keys
Comparison of Shear and Bearing Length Equations
Standard Keys
Lengths
Stress Analysis of Woodruff Keys
Shear Analysis of Woodruff Keys
British Standard Woodruff Keys and Keyways BS 6: Part 1: 1958
Shaft pins
Pin Diameter
Shear Pins
RETAINING RINGS
Lock Nut
Locking Nut
American National Standard Unhardened Ground Dowel Pins
American National Standard Clevis Pins ANSI B18.8.1-1972 (R1994)
American National Standard Taper Pins ANSI/ASME B18.8.2-1995
American National Standard Slotted Type Spring Pins
American National Standard Cotter Pins ANSI B18.8.1-1972 (R1994)
Splines
Splined Shaft and Hub
Spline Standard
Straight Tooth Spline Geometry
Straight Tooth Spline Strength
Standard Diametrical Pitches and Lengths
Torque Capacity
Involute Splines
Spline Manufacturing Methods
Spline Failure Example
Splined Fittings
Splined Linear Bearing
Ball screw and splined linear bearing
Ball Screw
Polygons
Application off Spacer
RETAINING RINGS
Different Types of Rings
Spring Loaded Retaining Rings
Retaining Rings Stress Concentrations
EXTERNAL RETAINING RINGS
Reduced Cross Section Retaining Rings
American National Standard Metric Tapered Retaining Rings
Performance data
Integral Shafts
Shaft Design
Geometric constrains
Shaft Deflection
Distortion limits
Torsion
Whirling and Critical Speed
Strength constrains: Typical shaft loading
Common Shaft Loading Mechanisms
Spur Gear Loads
Direction of forces
Belt Drive Loads
Belt Drive Loads (Bending Force)
Chain Drive Loads
Bending Stresses Due to Stationary Loads
Shaft Stress Equations (Bending and Torsion Only)
Yielding in Ductile Material (No Stress Concentration)
Static Loading Minimum Diameter
Shaft Stress Equations (Bending, Axial, and Torsional Loading)
Fatigue Analysis of Shafts
Shaft von Mises Stress Equation
Effective Alternating and Mean Stresses
ANSI Standard Fatigue Curve
ASME Elliptic Fatigue Equation
Minimum Diameter Equation (Bending and Torsion Only)
Soderberg
Hollow Shafts
Summary of Shaft Stress Analysis Methodology
Design Detail Needed to Specify a Shaft
Internet Sites for Keys, Coupling and Seals
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