modified by the Romans. The Ballista was created to increase the range and power of the crossbow‚ and was the first catapult. Two wooden arms are attached to a piece of rope; the rope was made of hair or sinew. The rope was attached to the beam and pulled back‚ bending the arm back. When released the Ballista would shoot arrows at the enemy with expert accuracy. However its accuracy was great it lacked the power of the Mangonel and the Trebuchet. The Springald’s design is close to that of the ballista
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pull F . Find the total elongation. 2. The Young‘s modulus of a material is 200kN/mm2 and its rigidity modulus is 80kN/mm2 . Determine its bulk modulus. 3. What is point of contraflexure? In which beam will it occur? 4. Derive the relation between the intensity of load and shear force‚ in bending theory. 5. Draw the shear stress distribution diagram for an Isection. 6. Derive an expression for the power transmitted by a circular shaft in S.I. units‚ which is subjected to a torque T in N m.
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University of Pune Structure for Mechanical Engineering with effect from academic year 2013 – 14 S. E. (Mechanical) and S. E. (Automobile) Semester – I Code Subject Teaching Scheme (Weekly Load in hrs) Lect. Tut Practical 4 3 1 4 3 3 -18 1 ---1 --2 --2 2 -2 2 2 10 Examination Scheme (Marks) + Theory TW PR OR Paper Online 50 50 -50 50 50 --250 50 50 -50 50 50 --250 25++ ---25++ -25 25 100 --50 -----50 ---50 -50 --100 Total 125 100 50 150 125 150 25 25 750 Engineering Mathematics – III* Manufacturing
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Transverse Vibration of Beam Lab Report Introduction This experiment aimed to study the forced damped transverse vibration of a beam and verify Dunkerley’s empirical formula. According to Dunkerley’s empirical formula‚ 1f2=1fb2+1fω2 where f referring to the natural frequency of heavy beam with central load fb referring to the natural frequency of heavy beam only fω referring to the natural frequency of light beam with central load M By using the results of light damping‚ Dunkerley’s
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Diffraction refers to various phenomena which occur when a wave encounters an obstacle. In classical physics‚ the diffraction phenomenon is described as the apparent bending of waves around small obstacles and the spreading out of waves past small openings. Similar effects occur when a light wave travels through a medium with a varying refractive index‚ or a sound wave travels through one with varying acoustic impedance. Diffraction occurs with all waves‚ including sound waves‚ water waves‚ and electromagnetic
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Column Appendix D – Design Calculation for Beam Appendix E – Design Calculation for Wall Appendix F – Design Drawing Appendix G – Design Calculation for Floor span 1. Introduction This submission presents the method statement and corresponding temporary work design for the construction of low-rise building (LRB). Footing foundation will be chosen for the foundation of structure. Design calculation and drawing for the structure‚ including beams‚ columns‚ foundations‚ walls‚ floor slabs will
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York. Paulay T. 1971a. Stimulated seismic loading of spandrel beams. Journal of the Structural Division‚ ASCE 97: 2407–2419. Paulay T. 1971b. Coupling beams of reinforced concrete shear walls. Journal of the Structural Division‚ ASCE 97: 843–862. Paulay T. 1986. The design of ductile reinforced concrete structural walls for earthquake resistance. Earthquake Spectra 2(4): 783–823. Paulay T‚ Binney JR. 1974. Diagonally Reinforced Coupling Beams of Shear Walls: Shear in Reinforced Concrete. Publication
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EVOLUTION OF HIGH-RISE BUILDINGS 1.Historical Development In High-Rise Buildings Ancient Skyscrapers - The Great Ziggurat of Babylon Perhaps the most impressive structure in the ancient Middle East‚ the Great Ziggurat of Babylon was built over a span of several decades in the Sixth Century BC. Its seven stories‚ built upon a square foundation‚ stretched 300 feet into the sky. Some think it was the inspiration for the infamous Tower of Babel in the Book of Genesis. In this illustration‚ King Nebuchadnezzar
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approximately four to six metres from the southern kerb. There was an absence of natural light‚ and only one streetlight‚ which Mr Gardiner had already passed [5]. On the same morning‚ Ms Marien was driving along Centenary Avenue with her lights on low beam‚ which illuminated the roadway ahead of her for less than twenty-eight metres [6]. ozb Travelling at 50km/h‚ the applicable speed limit‚ Ms Marien’s car struck Mr Gardiner at a point past the streetlight‚ causing him serious injuries [6]. Procedural
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August 2013. This is my time first attachment and during my time there‚ I had the chance to learn a whole lot of things like mason work ( block laying‚ concrete casting and plastering)‚carpentry works ( staircase making and floor panelling)‚ steel bending (bending of rings and tightening). MASON WORK By the time I started my attachment all the form work for the
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