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 35
... elastic deformations or deflections are required . Rigidity can be defined as the amount of deflection per unit of ... modulus of elasticity of a material is an indication of the material's rigidity . 3-1 SPRING CONSTANT The spring ...
... elastic deformations or deflections are required . Rigidity can be defined as the amount of deflection per unit of ... modulus of elasticity of a material is an indication of the material's rigidity . 3-1 SPRING CONSTANT The spring ...
Page 38
... modulus of elasticity of steel L = length of the bar The term AE is referred to as the tensile ( or compressive ) rigidity of the section . Case ( b ) Round Cantilever Bar with End Load ( Bending Stiffness ) The stiffness of the ...
... modulus of elasticity of steel L = length of the bar The term AE is referred to as the tensile ( or compressive ) rigidity of the section . Case ( b ) Round Cantilever Bar with End Load ( Bending Stiffness ) The stiffness of the ...
Page 61
... modulus of elasticity of steel = modulus of elasticity of wood b = width of the wood section Because the moment of inertia and the section modulus of the composite section is much higher than that of an equivalent timber section , the ...
... modulus of elasticity of steel = modulus of elasticity of wood b = width of the wood section Because the moment of inertia and the section modulus of the composite section is much higher than that of an equivalent timber section , the ...
Contents
INTRODUCTION TO FORM DESIGN | 1 |
EFFICIENT AND INEFFICIENT STRESS PATTERNS | 27 |
DESIGNING FOR RIGIDITY | 36 |
Copyright | |
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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