Experiment AM1.4--Bending moments in a simply supported beam Student name JunJie Liu Student ID 1512042 Experiment Date 24 Nov 2014 Lab group Mech 7 Introduction In this lab report we show the basic methods of measuring bending moment at the “cut” assuming only simply supported beam with point loads (showed in figure 1) and illustrate the relationship among bending moment and distance between
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Sudhakar Rajesha‚ Govindasamy Bhavani Bhaskara a Department of Mechanical Engineering‚ Tagore Engineering College‚ Chennai-600127‚ India Assessment of the performance of laminated composite leaf springs subjected to cyclic loading This paper deals with replacement of conventional leaf spring with composite leaf spring in automobiles. The dimensions of an existing conventional steel leaf spring of a light commercial vehicle were taken to fabricate the special die‚ which is further used to
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Task 1. (Word count: 800-1000 words) 1. Select one project of your interest – something that you would like to visit or discover how it works and prepare a report. Why is this project interesting from an operations management perspective? - How long it took to design it‚ plan it and build it? - How many people were involved in its design‚ planning and operationalization? - How much material and what types of material were needed? - What were the main phases of the project? - What were
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to be bent ’’backwards’’ at a negative angle of refraction with a negative refraction index. What is refraction? • Deflection from a straight path undergone by a light ray or energy wave in passing obliquely from one medium into another‚ in which the velocity is different. • Refraction occurs when a beam of light is bent and is caused by a change in the speed of the beam as it passes from one transparent medium to another. • The transmission of light across a boundary between 2 media is
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ker = k/2 (weaker) For springs side-by-side (parallel ) keq = k1 + k2 and keq = 2k (twice as stiff) 1.20 1.21 Assume “thickness” is the beam height h. K = f/x‚ for the doubly clamped beam (both ends clamped)‚ k = f/x = 192EI/L3 and I = 1/12 bh3 Take moments around the pivot point O. The force in each spring is the product of its spring constant (k) and its deflection. fL = (kx)L + (K x/2)L/2 = KLx(5/4) The equivalent spring constant is Keq= f/x = 5K/4 1.28 1.38 Take moments about the pivot
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Theory of simple bending (assumptions) Material of beam is homogenous and isotropic => constant E in all direction Young’s modulus is constant in compression and tension => to simplify analysis Transverse section which are plane before bending before bending remain plain after bending. => Eliminate effects of strains in other direction (next slide) Beam is initially straight and all longitudinal filaments bend in circular arcs => simplify calculations Radius of curvature is large compared
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8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Title Plane frame Element SDOF system in free vibration with damping Figure showing local and global co-ordinates of a beam member Problem figure for a
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MECHANICAL ENGINEERING Beam Reactions OBJECT 1. To determine both the theoretical and actual support reactions of a simple vertically loaded beam‚ showing that the loadings on the supports are directly proportional to the distances of the loads from the supports; thus illustrating the principle of the moments of forces. 2. To determine the beam support reactions for a horizontal beam carrying vertical loads at positions across the span. APPARATUS Two support stands‚ beam of uniform round bar
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EMBEDDED SENSORS IN LAYERED MANUFACTURING A DISSERTATION SUBMITTED TO THE DEPARTMENT OF MECHANICAL ENGINEERING AND THE COMMITTEE ON GRADUATE STUDIES OF STANFORD UNIVERSITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Xiaochun Li June 2001 © Copyright by Xiaochun Li 2001 All Rights Reserved ii I certify that I have read this dissertation and that in my opinion it is fully adequate‚ in scope and quality‚ as a dissertation for the degree of Doctor of Philosophy
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DEPARTMENT OF MECHANICAL ENGINEERING COLLEGE OF ENGINEERING UNIVERSITY TENAGA NASIONAL Mechanics and Materials Lab Manual MEMB221 Semester 2 2014/2015 TABLE OF CONTENTS ITEMS PAGES Laboratory & Reports: An Overview 3 Guidelines for Informal Laboratory Report 4 Guidelines for Formal Laboratory Report 6 Basic Laboratory Safety Rules 8 Experiment 1 Tensile Test 9 Experiment 2 Torsion Test 14 Experiment 3 Bending Test 20 Experiment 4 Buckling Test 23 Experiment 5 Hardness Test
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