motion is currently produced using .frequency of (25 – 125) Hz
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A: THIS FIGURE SHOWS THE ISOMETRIC VIEW AS GIVEN IN QUESTION AND DRAWN IN CATIA V5
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Q: natural frequencies -
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Q: Determine the natural frequencies of the following 2 DOF vibrating system:
A: given:
Q: 3. What are the approaches used to represent harmonic motion? *
A: we are to enumerate the methods to represent SHM
Q: Define natural frequency.
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Q: 1. Define simple harmonic motion.
A: answer :
Q: ABCDEF Number of eectrons 88 89109 Number of nea trons 89 10 98 10 8889 10 9 Namber Protonc of
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A: The standard form of the simple harmonic motion is, y=Asinωt+ϕ Where, y is the displacement of the…
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Q: angular frequency of the sinusoid
A: Angular frequency= 6.7 rad/sec
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Q: 4. Spectra and filtering. a. White light has an approximately constant spectrum in the visible range…
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Q: The tendency of higher frequency source harmonics of a complex sound to drop off in power relative…
A: Given: Higher frequency source
Q: When the vibrating motion will have the same characteristics as the simple harmonic motion?
A: For any type of motion be it vibration or SHM is because of forces. One is external force and one is…
Q: Convert a displacement of 2 mils peak 1,775 CPM to velocity in in./sec-peak.
A: Given data as per questionDisplacement,D=2 mils peak to peak f= 1,775 CPM
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Q: Calculate the natural frequencies kq.
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Q: Q2. For the two degree of freedom system shown in Fig.2, determine the natural frequencies and the…
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A:
Q: What is natural frequency?
A: Natural frequency is the oscillation of mechanical or any system in the absence of any driving or…
Q: had a natural frequency of 20 cycles/second. What is the approximate fundamental frequency of…
A: Applying Dunkerly's principle, 1⁄(ω12)+1⁄(ω22)+1⁄(ω32) = 1/100 + 1/400 = 1/80 Therefore ω1=80…
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- List the five joint types used in welding.What are the advantages of GMA welding?2) Which of the following is NOT true about friction stir welding? O It is a solid state process Fine grained structures can be obtained O It eliminates friction welding problems O It alters the chemical composition of the workpiece
- 2.8 Advantages of Submerged Arc Welding Cost per unit length of joint is relatively low The arc is under a blanket of flux, which virtually eliminates arc flash, spatter, and fume. • Extremely high deposition rates and welding speeds are possible. • Sound welds are readily made (with good process design and control). High current densities increase weld penetration and decrease the need for edge preparation. High speed welding of thin sheet steels at over 2.5 m/min is possible. Can be easily Automated Minimum welder training is required (relatively unskilled welders can be employed). • Low hydrogen weld deposits can be produced. • The flux acts as a scavenger and deoxidizer to remove contaminants such as oxygen, nitrogen, and sulphur from the molten weld pool. This helps to produce sound welds with excellent mechanical properties. 26 2.9 Limitations of Submerged Arc Welding Initial cost of wire feeder, power supply, controls, and flux-handling equipment is high. Limited to ferrous…Briefly explain the heat-affected zone (HAZ) in welding showing the microstructural changes with a suitable sketch/diagram.8) The correct ways to control liquation cracking tendency in fusion weld joint are I. Use of filler metal that solidifies before the partially melted zone I. Use of single pass welding with higher net heat input instead of multipass welding III. Use of high energy density processes IV. Preheating the substrates V. Use of base metals with fine grain structure OI, II, and III II, and IV OII, IV, and V O II, III and IV
- Enumerate the types of joint in welding.Question No.14. Backhand technique used in gas welding is suitable for joining Thin sheets Cylindrical objects thick sections Dissimilar metals • Prev Question Question »Question No. 15. Which of these method is suitable for joining an air tight or liguid tight container • Spot welding soldering O Sintering Seam welding Brax Ouestion Question »
- A circular electrode of 190 mm diameter is used for carrying out seam welding at 5 welds per cm on a mild steel tube of thickness 1.5 mm. The duration of the welding cycle is given as On - 4 cycles, Off- 3 cycles. The power supply is at 50 Hz. Calculate work speed, welds per minutę, RPM, and energy requirement assuming effective resistance between an electrode as 100u ohm.22 Explain with sketches the dip transition technique in MIG/MAG. 23 Explain with details the types of flam in Oxy-Acetylene welding method.- 24: Explain with sketches the right hand and left hand technique in gas weldingA plate of Low carbon steel AISI 1023 is to be welded by SMAW, thickness is equal to 19mm, total welding length2m, tensile strength 61000psi and yield strength 51000psi. Select appropriate electrode type, welding technique andjoint preparation if butt joint is to be used.