Design of Machine and Structural PartsA fully developed and very practical presentation of the subject of form design of machine components is provided in this book, including how to recognize what form or shapes cause what stress patterns and how to apply the information to an overall design. Techniques are presented that guide the design engineer to the correct kind of element to use without the need of calculations; how to choose shapes that produce efficient stress patterns. Also included is a brief review of strength/design procedures; the nature of efficient and inefficient stress patterns are covered, general principles of component design, optimizing strength-to-weight ratios, considerations for buckling and impact and the design of joints. |
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Page 18
... spot contact and bearing . Figure 1-23 shows spot contact between two crossed cylindrical bodies . Contact takes place at a single point or over a very small area . When contact between two bodies occurs over a relatively large area ...
... spot contact and bearing . Figure 1-23 shows spot contact between two crossed cylindrical bodies . Contact takes place at a single point or over a very small area . When contact between two bodies occurs over a relatively large area ...
Page 29
... SPOT CONTACT STRESS Spot contact is another inefficient stress pattern . Figure 2-4 shows the stresses in a gear tooth loaded in contact with another gear tooth . Inspection reveals large stresses at the point of contact and also large ...
... SPOT CONTACT STRESS Spot contact is another inefficient stress pattern . Figure 2-4 shows the stresses in a gear tooth loaded in contact with another gear tooth . Inspection reveals large stresses at the point of contact and also large ...
Page 45
... contact type and not of the spot contact type . Hence the material does not yield even at a load of 1000 lbf . Also , the effective stiffness in case ( g ) is much higher than that in case ( ƒ ) because case ( g ) is conformal contact ...
... contact type and not of the spot contact type . Hence the material does not yield even at a load of 1000 lbf . Also , the effective stiffness in case ( g ) is much higher than that in case ( ƒ ) because case ( g ) is conformal contact ...
Contents
INTRODUCTION TO FORM DESIGN | 1 |
EFFICIENT AND INEFFICIENT STRESS PATTERNS | 27 |
DESIGNING FOR RIGIDITY | 36 |
Copyright | |
13 other sections not shown
Common terms and phrases
avoirdupois bending moment bending stress bh³ body bolt cantilever beam compression Considerations of Stress contact stress contact surface cross section cross-sectional area crowned tooth cylinders deflection diameter efficient Engineering Considerations equations example flow of force flux force flow free-body diagram geometry given Hertz Hertz contact stress hole inch inefficient stress patterns inertia joint elements joule Juvinall k₁ k₂ keyway kilogram lbf/in length load distribution material maximum stress McGraw-Hill membrane analogy meter modulus of elasticity moment of inertia neutral axis newton newton/meter² normal stress notch plate portion principle R₁ R₂ ratio relative stiffness rigid rivet round bar shape refinement shear stress shown in Figure shows spline spot contact spring constant spring model sprocket steel Stiffeners Strain strap strength Strength of Materials strength-to-weight stress concentration stress distribution tensile tensile stress tension thread torque transverse transverse-shear tube uniform shear uniform stress