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e.g.25 A mass of 5 kg...
clear handwriting , no typing , show all work please! e.g.24 A vibrating system is analyzed...
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e.g.24 A vibrating system is analyzed and it is found that two successive oscillations have amplitudes of 3 mm and 0.5 mm respectively. Calculate the damping ratio.
clear handwriting , no typing , show all work please! e.g.23 An electric motor of 10...
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work please!
e.g.23 An electric motor of 10 kg is suffering from vibration due to unbalance of 0.01 kg. m2. The stiffness coefficient of the isolator is k = 105 N/m. It is required to choose a value of 3 from the following table such that minimum Ft to the floor is required and the maximum amplitude of vibration for the motor mass is 0.001 m. S = 0.1, 0.3, 0.5, 0.7,0.8...
No typing, show all steps and clear handwriting! e.g.22 A compressor of 25 kg is mounted...
No typing, show all steps and clear handwriting!
e.g.22 A compressor of 25 kg is mounted on isolator as shown in the figure. The isolator is idealized by a spring and a damper of damping ration { = 0.3. It is found that the compressor suffers from vibration due to unbalance of 0.001 sin50t. Also, it is found that all the maximum impressed force is transmitted to the floor. What will be the TR and the maximum Ft to the...
Answer last four questions 1. A spring-mass-damper system has mass of 150 kg, stiffness of 1500...
Answer last four questions
1. A spring-mass-damper system has mass of 150 kg, stiffness of 1500 N/m and damping coefficient of 200 kg/s. i) Calculate the undamped natural frequency ii) Calculate the damping ratio iii) Calculate the damped natural frequency iv) Is the system overdamped, underdamped or critically damped? v) Does the solution oscillate? The system above is given an initial velocity of 10 mm/s and an initial displacement of -5 mm. vi) Calculate the form of the response and...
clear handwriting , no typing , show all work please! An electric motor is mounted by...
clear handwriting , no typing , show all work please!
An electric motor is mounted by means of gears on a mid span of a shaft rested between two bearings as shown in the figure. It is found that the motor suffers from vibration due to unbalance of 0.1 kg.m. The clearance between the armature and the stator is 1 mm. Design the diameter of the shaft such that when the motor vibrates the armature wont touch the stator at...
Please do all questions and show work. 1. (2 points) A 200 g mass attached to...
Please do all questions and show work.
1. (2 points) A 200 g mass attached to a light spring oscillates on a frictionless, horizontal table. The mass is pulled 8 cm and released. A student finds that 12 oscillations takes 18 seconds. (a) What is the spring constant? (b) What is the maximum speed of the mass? 2. (3 points) The position of an object connected to a spring varies with time according to the expression x = (7.5 cm)cos...
show all work! with formulas! 2. (25 pts) A 5 pound mass is hanging from a...
show all work! with formulas!
2. (25 pts) A 5 pound mass is hanging from a spring attached to the ceiling. Initially, the mass is at rest. The mass is pushed upwards 10 inches compressing the spring and then let go. The mass undergoes simple (undamped) harmonic motion. It takes 3 seconds for the mass to go from its highest point (where it was let go), to its lowest point (where the spring is fully stretched out). a. Develop a...
Please complete questions #2-3. Show all work. 1. A 250 g mass on a vertical spring...
Please complete questions #2-3. Show all work.
1. A 250 g mass on a vertical spring oscillates at a frequency of 1.0 Hz. If a 500 g mass were instead suspended from the same spring, what would be the frequency of oscillation? . A breeze sets into oscillation a lamp suspended from the ceiling, If the period is 1.0 s, what is the distance from the ceiling to lamp at the lowest point? Assume the lamp acts as a simple...
show all the work please 5. Solve problems (a) to (c) below. (a) A 60.0-kg block...
show all the work please
5. Solve problems (a) to (c) below. (a) A 60.0-kg block is attached to a massless spring with force constant k = 575 N/m. (1) Find the natural frequency for this simple harmonic oscillator, in Hatz (cycles/sec). (ii) If the amplitude is 0350 m, predict the maximum speed of the block (for Instructor use only) (b) A siren has an intensity of 10W/m²at a distance of 10.0 m away. What is its intensity at a...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
clear handwriting , no typing , show all
work please!
e.g.24 A vibrating system is analyzed and it is found that two successive oscillations have amplitudes of 3 mm and 0.5 mm respectively. Calculate the damping ratio.
clear handwriting , no typing , show all
work please!
e.g.23 An electric motor of 10 kg is suffering from vibration due to unbalance of 0.01 kg. m2. The stiffness coefficient of the isolator is k = 105 N/m. It is required to choose a value of 3 from the following table such that minimum Ft to the floor is required and the maximum amplitude of vibration for the motor mass is 0.001 m. S = 0.1, 0.3, 0.5, 0.7,0.8...
No typing, show all steps and clear handwriting!
e.g.22 A compressor of 25 kg is mounted on isolator as shown in the figure. The isolator is idealized by a spring and a damper of damping ration { = 0.3. It is found that the compressor suffers from vibration due to unbalance of 0.001 sin50t. Also, it is found that all the maximum impressed force is transmitted to the floor. What will be the TR and the maximum Ft to the...
Answer last four questions
1. A spring-mass-damper system has mass of 150 kg, stiffness of 1500 N/m and damping coefficient of 200 kg/s. i) Calculate the undamped natural frequency ii) Calculate the damping ratio iii) Calculate the damped natural frequency iv) Is the system overdamped, underdamped or critically damped? v) Does the solution oscillate? The system above is given an initial velocity of 10 mm/s and an initial displacement of -5 mm. vi) Calculate the form of the response and...
clear handwriting , no typing , show all work please!
An electric motor is mounted by means of gears on a mid span of a shaft rested between two bearings as shown in the figure. It is found that the motor suffers from vibration due to unbalance of 0.1 kg.m. The clearance between the armature and the stator is 1 mm. Design the diameter of the shaft such that when the motor vibrates the armature wont touch the stator at...
Please do all questions and show work.
1. (2 points) A 200 g mass attached to a light spring oscillates on a frictionless, horizontal table. The mass is pulled 8 cm and released. A student finds that 12 oscillations takes 18 seconds. (a) What is the spring constant? (b) What is the maximum speed of the mass? 2. (3 points) The position of an object connected to a spring varies with time according to the expression x = (7.5 cm)cos...
show all work! with formulas!
2. (25 pts) A 5 pound mass is hanging from a spring attached to the ceiling. Initially, the mass is at rest. The mass is pushed upwards 10 inches compressing the spring and then let go. The mass undergoes simple (undamped) harmonic motion. It takes 3 seconds for the mass to go from its highest point (where it was let go), to its lowest point (where the spring is fully stretched out). a. Develop a...
Please complete questions #2-3. Show all work.
1. A 250 g mass on a vertical spring oscillates at a frequency of 1.0 Hz. If a 500 g mass were instead suspended from the same spring, what would be the frequency of oscillation? . A breeze sets into oscillation a lamp suspended from the ceiling, If the period is 1.0 s, what is the distance from the ceiling to lamp at the lowest point? Assume the lamp acts as a simple...
show all the work please
5. Solve problems (a) to (c) below. (a) A 60.0-kg block is attached to a massless spring with force constant k = 575 N/m. (1) Find the natural frequency for this simple harmonic oscillator, in Hatz (cycles/sec). (ii) If the amplitude is 0350 m, predict the maximum speed of the block (for Instructor use only) (b) A siren has an intensity of 10W/m²at a distance of 10.0 m away. What is its intensity at a...
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