Theory of Wire Rope

ISBN-13: 9781461273615 / Angielski / Miękka / 2012 / 123 str.

George A. Costello; George A. Costello

Opis

Mechanical engineering, an engineering discipline born of the needs of the industrial revolution, is once again asked to do its substantial share in the call for industrial renewal. The general call is urgent as we face profound issues of productivity and competitiveness that require engineering solutions, among others. The Mechanical Engineering Series features graduate texts and re search monographs intended to address the need for information in contem porary areas of mechanical engineering. The series is conceived as a comprehensive one that covers a broad range of concentrations important to mechanical engineering graduate education and research. We are fortunate to have a distinguished roster of consulting editors on the advisory board, each an expert in one of the areas of concentra tion. The names of the consulting editors are listed on the preceding page of this volume. The areas of concentration are applied mechanics, biomechanics, computational mechanics, dynamic systems and control, energetics, mechan ics of materials, processing, thermal science, and tribology. Professor Leckie, the consulting editor for applied mechanics, and I are pleased to present the second edition of the third volume of the series: Theory of Wire Rope by Professor Costello. The selection of this volume underscores again the interest ofthe Mechanical Engineering Series to provide our readers with topical monographs as well as graduate texts."

Spis treści

1 Introduction.- 1.1 Basic Components.- 1.2 Identification and Construction.- 2 Equilibrium of a Thin Wire.- 2.1 Kinematics of a Thin Wire.- 2.2 Equations of Equilibrium.- 2.3 Relations Between Loads and Deformations.- 3 Static Response of a Strand.- 3.1 Geometry of a Strand.- 3.2 Axial Response of a Simple Straight Strand.- 3.3 Stress Determination of a Simple Straight Strand.- 3.4 Load Deformation Relation for a Simple Straight Strand.- 3.5 Pure Bending of a simple Straight Strand.- 3.6 Stress Determination of a Strand Subjected to Bending.- 3.7 Stress Determination of a Strand Passing over a Sheave.- 3.8 Multilayered Strands.- 3.9 Electric Conductor Strand.- 3.10 Contact Stresses.- 3.11 Outside Wires Contacting Each Other.- 3.12 Other Types of Strand Cross Sections.- 4 Static Response of a Wire Rope.- 4.1 Axial Response of an Independent Wire Rope Core.- 4.2 Axial Response of a Wire Rope.- 4.3 Stresses in a Wire Rope Due to Axial Loading.- 4.4 Stresses in a Wire Rope Due to Axial Loading and Bending.- 5 Friction in Wire Rope.- 5.1 Friction in an Axially Loaded Strand.- 5.2 Frictional Effects in the Bending and Axial Loading of a Strand.- 5.3 Frictional Effects in Wire Rope.- 5.4 Effective Length of a Broken Center Wire in a Simple Strand.- 5.5 Effective Length of a Broken Outer Wire in a Rope.- 6 Testing of a Wire Rope.- 6.1 Axial Testing of a Wire Rope.- 6.2 Effect of Rope Size on Rope Strength.- 6.3 Effect of Rope Size on Fatigue Life.- 7 Birdcaging in Wire Rope.- 7.1 Equations of Motion.- 7.2 Solution of Equations.- 7.3 Numerical Results.- 8 Rope Rotation.- 8.1 Rotation of a Wire Rope.- 8.2 Hand-Spliced Ropes.- 9 Tension and Compression of a Cord.- 9.1 Tension (contact between adjacent wires).- 9.2 Compression (no contact between adjacent wires).- 10 A Theory of Fatigue.- 10.1 Introduction.- 10.2 Theory.- 11 Remarks on Assumptions and Approximations.- 11.1 Introduction.- 11.2 Assumptions and Approximations for a Straight Strand.- 11.3 Assumptions and Approximations for a Wire Rope.- References.

O autorze

Intended for graduate students and practicing engineers, this book is concerned with the mechanical behavior of wire rope. It begins with the equations of equilibrium for a thin curved wire in space, solves these, and applies the results to determine the stresses in a simple strand. These results are then extended to ropes with more complex cross sections. Numerious examples are worked out to illustrate the theory. This second edition includes new chapters on tension and compression of a cord, on fatigue, and on approximations.