the natural frequency of vibration of the system is rad/s (round ce)
Q: If a system vibrates due to its initial disturbance only, it is called vibration. Select one: O a.…
A: Forced Vibration The type of vibration that takes place under the excitation of external forces is…
Q: The number of cycles per unit time is called the of vibration Select one: O a. frequency O b. period…
A: Frequency The number of complete oscillations per unit time is called frequency, that too in a…
Q: Define amplitude of vibration.
A: Any vibration causes wave formation. Amplitude of any particle or body undergoing vibration is the…
Q: in vibration, motion that occurs within a specified/one time period is called ____?
A: Vibration is a periodic motion.
Q: WHAT 16 THE NOMINAL RATE OF INTE REST COMPOUNDED CONTINOUSLY FOR IOYRS IF THE COMPOUND AMOUNT FACTOR…
A: Answer: The nominal rate of interest is 3.0455%.
Q: (b) Briefly describe the functions for each instrument's components: (i) (ii) (iii) Handheld Shaker.…
A: 1. Handheld shaker The function of Handheld shaker is used to test and calibrate devices that use…
Q: Vibration isolation, transmissibility, Explanation magnification factor
A: Solution:
Q: With application point of view explain the difference between (i) free and forced vibration (ii)…
A: Given Vibration To find Free Vibration vs Forced vibration Damped Vibration vs Undamped Vibration…
Q: The damping ratio for a viscously
A: Given; The damping ratio for a viscosity damped spring mass system, Governed by a relationship;…
Q: What is the types of damping in the mechanical system?
A: In Damping, the energy is dissipated from system.
Q: 1. When there is a reduction in amplitude over every cycle of vibration, then the body is said to…
A: Solution (1) When a body is vibrating and there is a reduction in the amplitude over every cycle of…
Q: In _vibrations, the amplitude of vibration reduces over every cycle of vibration. O forced O free…
A: In _________vibrations, the amplitude of vibration reduces over every cycle of vibration. O forced O…
Q: What are the common types of damping? Select one or more: a. Linear O b. Mass c. Spring d. Viscous O…
A: what are the common types of damping
Q: Compare viscous damping and coulomb damping。
A:
Q: Forced vibration depends on w„/w. O True O False
A:
Q: a.) velocity and b.) displacement.
A: Derivation for velocity and displacement.
Q: Subject: Vibration Engineering Determine the degrees of freedom NOTE: Show the solutions
A:
Q: 5. The purpose of vibration absorber is to reduce vibration at resonance * Choose True False
A: Vibration absorber is used in high frequency vibrations . Absorber is a device whose natural…
Q: ture T-120 °C T-400 °C
A: the governing equation for the steady , two dimensional heat conduction is ∂2T∂x2+∂2T∂y2…
Q: the following shadec
A: given:
Q: 5. You only need a particular solution to solve the total respon vibration system Choose True False
A: we know that The general equation for force vibration system is
Q: Q8/ . .. lumped on the axis of piston pin axis * Reciprocating parts REDUCED SYSTEM piston travel…
A: Note: Since you have asked multiple question, we will solve the first question for you. If you want…
Q: If no energy is lost or dissipated in friction or other resistance during oscillation, the vibration…
A: The oscillations occurs about an equilibrium. This mechanical phenomenon is known as vibration. It…
Q: tion
A: given: With application point of view explain the difference between (i) free and forced vibration
Q: Describe the Newton's Three Law of Motion.
A: Newton's law of motion: 1st Law: It tells about inertia. Everybody continues to be in it's original…
Q: List four possible causes of cluth slippage
A: A Clutch is a mechanical device used in vehicles that transmits power from the motor to the…
Q: A- There are good and bad effects of mechanical vibrations. Give five examples of the bad effects of…
A: To explain: The effect of vibration. Concept used: Vibration: Mechanical vibration is defined as the…
Q: Mass-spring system is a comprehensive representation of all vibration systems Ture False O
A: False
Q: How phuse is measured in vibration Signels ? 14 15 what are the benfits of rotafion machines d E…
A: 14. Ans= The phase measurement in machinery vibration measurements uses the phase lag convention.…
Q: What is the function of vibration absorber?
A: *Apparently, vibration absorber does absorb the vibration of the system it is installed--this is to…
Q: (c) Torsional system
A:
Q: Explain the working of Strain gauge type transducer with a neat diagram to measure the displacement.
A: Strain is a dimensionless quantity which is given by the ratio of an object's change in length to…
Q: 3. Isolator is used to reduce the vibration effect and it can be applied at: Choose Source of…
A: VIBRATION ISOLATOR IS A DEVICE THAT IS USED TO REDUCE HARMFUL VIBRATION IN STRUCTURE AND MACHINES .…
Q: How many cases that can represent for damped vibration system
A:
Q: Not all engineering systems can be represented as a DOF when vibration analysis is required Ture O…
A:
Q: %3D + be 'be %3D
A:
Q: normal sti D C 4 mm 6 mm
A: GivenAD=20mmAB=20mm
Q: If a system vibrates due to its initial disturbance only, it is called vibration. Select one: O a.…
A: If a system vibrates due to its intital distrubance only it is called ........ vibration.
Q: How magnification factor varies with damping ratio for a particular value of frequency ratio?
A:
Q: Vibrations
A: given:
Q: Briefly describe the functions for each instrument’s components: (i) Handheld Shaker. (ii) Human…
A:
Q: The permissible torque __________
A: Given Data : Permissible torque
Q: Write down the working principle of tuned vibration absorber.
A: Tuned vibration absorber:- Tuned vibration absorber can be effectively used to suppress forced…
Q: 300 rpm. The index of compressor and expansion is 1.3. Determine; of the cylinder; erature; er;
A: assume in the absence of clearance data we have P1 = 1 BAR , T1 = 15°C P2 = 7 Bar N = 300rpmn =…
Q: pulse rate being
A: Given data: Determine the pulse rate being recieved by the stepper motor: Where, Pitch of the lead…
Q: Explain the following: a) Damping factor in vibration b) Vibration isolation and transmissibility
A: following are the definitions of the above terms-
Q: The vibration of a system depends on the choice of the coordinate system. Select one: QTrue O False
A: The given statement is true.
Q: How to make vibration in only one mode in a two-degree-of-freedom vibration system?
A: Vibration
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- The inclined ladder AB supports a house painter (85 kg) at C and the weight iq = 40 K/m} of the ladder itself. Each ladder rail (t5= 4 mm) is supported by a shoe (ts= 5 mm) that is attached to the ladder rail by a bolt of diameter d = 8 mmA bungee jumper having a mass of 55 kg leaps from a bridge, braking her fall with a long elastic shock cord having axial rigidity EA = 2.3 kN (see figure). If the jumpoff point is 60 m above the water, and if it is desired to maintain a clearance of 10 m between the jumper and the water, what length L of cord should be used?A stepped shaft ABC consisting of two solid, circular segments is subjected to uniformly distributed torque t1acting aver segment 1 and concentrated torque t2applied at C, as shown in the figure. Segment 1 of the shaft has a diameter of d1= 57 mm and length of L1= 0.75 m; segment 2 has a diameter d2— 44 mm and length L2= 0.5 m. Torque intensity /,"= 3100 N . m/m and T2= 1100 N. m. (a) Find reaction torque TAat support A. (b) Find the internal torque T(x) at two locations: .x = L1/2 and at .x = L1+ L2/2. Show these internal torques on properly drawn free-body diagrams.
- Solve the preceding problem if the collar has mass M = 80 kg, the height h = 0.5 m, the length L = 3.0 m, the cross-sectional area A = 350mm2. and the modulus of elasticity E = 170 GPa.A small lab scale has a rigid L-shaped frame ABC consisting of a horizontal aim AB (length b = 30 cm) and a vertical arm BC (length c = 20 cm) pivoted at point B. The pivot is attached to the outer frame BCD that stands on a laboratory bench. The position of the pointer at C is controlled by two parallel springs, each having a spring constant k = 3650 N/m. that are attached to a threaded rod. The pitch of the threads is p = 1.5 mm. If the weight is 65 N. how many revolutions of the nut are required to bring the pointer back to the mark?A polyethylene tube (length L) has a cap that when installed compresses a spring (with under-formed length L1) by an amount ?? = (L1 = L). Ignore deformations of the cap and base. Use the force at the base of the spring as the redundant. Use numerical properties given in the boxes. (a) What is the resulting Force-in the spring, Fk? (b) What is the resulting Force in the tube, Ftl (c) What is the filial length of the tube, Lf? (d) What temperature change ?T inside the tube will result in zero force in the spring
- A heavy flywheel rotating at n revolutions per minute is rigidly attached to the end of a shaft of diameter d (see figure). If the bearing at A suddenly freezes, what will be the maximum angle of twist <£of the shaft? What is the corresponding maximum shear stress in the shaft? (Let L = length of the shaft, G = shear modulus of elasticity, and / = mass moment of inertia of the flywheel about the axis of the shaft. Also, disregard friction in the bearings at Sand Cand disregard the mass of the shaft.) Hint: Equate the kinetic energy of the rotating flywheel to the strain energy of the shaft.A bumper for a mine car is constructed with a spring of stiffness k = 1120 lb/in. (see figure). If a car weighing 3450 lb is traveling at velocity v = 7 mph when it strikes the spring, what is the maximum shortening of the spring?-11 A rubber cube R of a side L = 3 in. and cross- sectional area A = 9 in2 is compressed inside a steel cube S by a force F = 5 lb that applies uniformly distributed pressure to the rubber. Assume E 0.3ksi and,, = 0.45. (a) Calculate the lateral pressure between the rubber and steel (disregard friction between the rubber and the steel, and assume that the steel block is rigid when compared to the rubber). (b) Calculate the change in volume of the rubber.
- A solid circular steel cylinder S is encased in a hollow circular aluminum tube A. The cylinder and tube are compressed between the rigid plates of a testing machine which applies forces P. Calculate the allowable value of the compressive force if the yield stresses of sleel and aluminum are srs = 50 Ksi and ??A= 60 ksi, respectively. Assume that As= 12 in2. AA= 6 in2. L = 20 in., Es= 29,000 tsi and EA=10,600 ksiA flywheel of mass 120 kg and radius of gyration 450 mm is rotating at 760 r.p.m. It is brought to rest by means of block brake system as shown in the figure. The mass of the brake drum assembly is 5 kg. The brake drum is made of cast iron having specific heat 470 J / kg°C. and the brake system provides a braking torque of 380 N-m. If the diameter of brake drum is 300 mm, the coefficient of friction is 0.35. find 1. The force (P) to be applied at the end of the lever for the clockwise rotation of drum. 2. Assuming that the total heat generated is absorbed by the brake drum only, calculate the temperature riseUnder some circumstances, when two parallel springswith constants k1 and k2 support a single mass, theeffective spring constant of the system is given byk 4k1k2/(k1 + k2). A mass weighing 20 pounds stretchesone spring 6 inches and another spring 2 inches. Thesprings are first attached to a common rigid supportand then to a metal plate. As the figure illustrates(see image), the mass is attached to the center of the plate in the distributiondouble spring. Determine the constant of theeffective spring for this system. find the equationof motion if the mass is initially released fromequilibrium position with downward speed of2 ft/sec.