* Vibration is a study of Oscillation Damping ratio Natural ferquency of the system Temperture Fluid flow
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Q: natural frequencies -
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Q: Water at 10°C stands in a clean glass tube of 2 mm diameter at a height of 35 mm. What is the true…
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Q: For a damped oscillator with a mass of 390 g, a spring constant 66 N/m and a damping coefficient of…
A: mass, m=390 g or 0.39 kgspring constant, k=66 N/mdamping coefficient, c=75 g/s or 0.075 kg/sN=14…
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Q: A vibratory system with the differential equation: given initial deviation of 0.01 m and initial…
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Q: Q1/ An instrument vibrate with a frequency of 1 Hz when there is no damping. When the damping is…
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Q: PART A k = 2.000 N/m M=0.125kg A 0.125kg mass is attached to a horizontal spring of spring constant…
A: GIven: "Since you have not mentioned the part to be solved so we are solving the remaining…
Q: I Modified True or False. Analyze the following principles, concepts, or scenarios on vibration.…
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Q: hany oscillations ndulum complet
A: Repetition is the correct answer It is also known as frequency
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Q: Find the natural frequencies for the system illustrated below.
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Q: B: True &false 1. a system with a damping ratio 5=D0 is said to be critically damped. A. True B.…
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Q: For a spring mass damper system, m = 50 kg, k = 5000 N/m and C = 2Cc. Find the following: (a)…
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Q: At resonance, the amplitude of vibration is (a) Very large (c) Zero (b) Small (d) Depend on…
A: Resonance is the phenomenon in which the excitation frequency of the structure matches the natural…
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Q: The amplitude of vibration of an undamped system is measured to be 1 mm. The phase shift from t = 0…
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Q: What kind of a free vibration with a response of (d^2 x/dt^2) + 6(dx/dt) + 9x = 0. Initial…
A: Write the given equation for the system. d2xdt2+6dxdt+9x=0 Here, x is the displacement at time t.…
Q: The number of oscillation per second is periodic time. Select one: True False
A: It is required to evaluate given statement
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Q: During free vibration, each degree of freedom oscillates with different phase angles. Select one: O…
A: A free vibration is a form of vibration that applies a power once, and allows the structure or part…
Q: QUESTION 4 spring-1 Unknown mass, wwwmf attached to the free end of a spring (the other end of the…
A: Given data f1= 5.883Hz f2= 4.222Hz Find the value of frequency (f).
Q: Vibrations Engineering: r = 0.25 m initial angle = 1.25 radians initial angular speed = 4 radians…
A: given that r=0.25 initial angle = 1.25 radians initial angular speed = 4 radians per second Now the…
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Q: If stiffness of a spring is doubled and mass is halved, what will be percent change in its natural…
A: Let us consider, Initial stiffness of spring = k1 = k Final stiffness of spring = k2 = 2k Initial…
Q: Piezoresistive MEMS Accelerometer Consider the following MEMS Piezoresistive accelerometer:…
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Q: The period of oscillation, T, equals:
A: Given: xt=0.3cosωtAt x=0, v=-1.256 m/sTo determine:The period of oscillation
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- Derive a control volume form of the second law of thermodynamics. Suggest some practical uses for your relation in analyzing real fluid flows.The continuity equation of fluids describes the property of energy conservation; and Bernoulli's equation indicates conservation of mass. Ture OR FaleYou are being tasked as a wind tunnel engineer to investigate the performance of newly designed high-speed wind tunnel in UPNM. An exhaust gas flows through a nozzle where the inlet area is 5,000 cm2.At this inlet, the gas has a velocity of 1,200 m/s, temperature of 1,500oC,and pressure of 6,000 kPa. Initial measurement revealed that the pressure at the exit of the wind tunnel is 100 kPa. Based on this information, analyze and investigate ; i. Mach number at inlet of the nozzle ii. The velocity of gas at exit iii. The area of the nozzle at exit Take specific heat ratio for the exhaust gas, ? to be 1.7 and the gas constant, R to be 205 J/kg.
- A pitotstatic tube to be used in 2n airplane for on-flight measurement was calibrated on ground by using air of density 1.20 kg/m? . A measurement taken at an altitude of 3000 m where the ambient pressure and density were 70 kPa (abs) and 0.91 ke/m? respectively, indicated a velocity of 200 m/s by using the above ground level calibration. Estimate the true speed of the airplane [Take k = 1.4 and R = 287 (kg K)l.2. A fan discharges 265 cu.m/min of air through a duct of 92 cm in diameter against a static pressure of 0.022 m of water. The fluid density is 995 kg/cu.m., the air temperature is 29°C and the barometric pressure reading is 730 mm Hg. If the power input to the fan is measured 3.5 hp, what are the total and static fan efficiencies?Over a 30 m length of 150 mm vacuum line carrying air at 293 K (Molecular Weight =26.44 kg/kmol, Viscosity = 18.12*10^-6 N s/m^2), the pressure falls from 1 kN/m^2 to 0.1 kN/m^2. If the relative roughness e/d is 0.002, what is the approximate mass flow rate? (unit is required).
- A pitot-static probe will be used to measure the velocitydistribution in a water tunnel at 20°C. The two pressurelines from the probe will be connected to a U-tube manometerthat uses a liquid of specifi c gravity 1.7. The maximumvelocity expected in the water tunnel is 2.3 m/s. Your job isto select an appropriate U-tube from a manufacturer thatsupplies manometers of heights 8, 12, 16, 24, and 36 in.The cost increases signifi cantly with manometer height.Which of these should you purchase?An incompressible fluid of density 800 kg/m3 flows steadily at 8 m3/sec through a horizontal pipingsection. The inlet diameter is 1 meter while the outlet diameter is 0.5 meters. The static pressure at the inlet is 1,000 kPa (absolute); the outlet is open to the atmosphere.Determine the fluid loss from the inlet to the outlet in J/kg.Draw neat sketches of the following and label them:D. An open system with variable imaginary boundaryE. Turbulent flow through a pipe with velocity distribution
- A cylindrical tank shown below has a radius ? and a circular orifice at the bottom of radius ?. At time ? = 0 the liquid level in the tank is ho. (a) Use the Bernoulli equation to determine the relations between the orifice velocity ?o and the free surface velocity ?s (assume the surface velocity is not zero). (b) Use conservation of mass to determine the orifice velocity in terms of the free surface velocity. (c) Use the results in (a) and (b) to derive a differential equation for h(?). Note that ?s = − dh/dt. d) Separate variables and solve the equation for h(?) with the initial condition h(0) = ho (e) Determine how long it will take to empty the tank.Distilled water flowing with a flow rate of 50.2 L / min in the venturimeter with a narrow section of 8.6x10^-5m^2 and a wide section of 6.88x10^-4 m^2 transitions from wide to narrow section. The pressure in the wide cross-section of water at 200C is 0.8 bar and tell whether cavitation will occur. (Contraction Loss = KdV22 / 2g and Kd = 0.35) (Vapor pressure values are given in the table below.)A gasoline engine is at a location where the temperature is measured to be 14.8 °C and produces 300 kW at 5800 rpm while consuming 0.0184 kg/s of fuel. During operation, data shows that its mechanical energy loss is 18 %, the actual volume of air going into each cylinder is 80% (the volumetric efficiency has a negligible variation), and the actual fuel-to-air ratio is 0.065. What were the engine parameters at sea level conditions if the pressure here is 99.3 kPa and the temperature here is 18 0C hotter than that of the elevated condition? Determine at sea-level conditions the Brake Power in kW.