+1-415-315-9853

info@mywordsolution.com

## Engineering

 Civil Engineering Chemical Engineering Electrical & Electronics Mechanical Engineering Computer Engineering Engineering Mathematics MATLAB Other Engineering Digital Electronics Biochemical & Biotechnology

1) A machine part having a mass of 2.5 kg implements the vibration in a viscous damping medium. A harmonic exciting force of 30 N acts on the part and causes a resonant amplitude of 14mm, with a period of 0.22 Sec. Determine the damping coefficient when the frequency of exciting force is altered to 4 Hz. Find the increase in the amplitude of forced vibration upon the removal of the damper.

2)  In a vibrating system, the total mass of the system is 25 kg. At speed of system and eccentric mass have a phase difference of 90° and the corresponding amplitude is 1.5 cm. The eccentric unbalanced mass of 1 kg has a radius of rotation 4 cm. Determine:

i) The natural frequency of the system.

ii) The damping factor,

iii) The amplitude at 1500 rpm and

iv) The phase angle at 1500 rpm.

3) A shaft of diameter 10 mm carries at its centre a mass of 12 kg. It is supported by two short bearings, the centre distance of which is 400 mm. Compute the whirling speed:

a) Neglecting the mass of the shaft, and

b) Taking the mass of the shaft also into consideration.

c) The density of shaft material is 7500 kg/m3.

Mechanical Engineering, Engineering

• Category:- Mechanical Engineering
• Reference No.:- M913404
• Price:- \$55

Guranteed 36 Hours Delivery, In Price:- \$55

Have any Question?

## Related Questions in Mechanical Engineering

### The maximum force applied to the tip of the allen wrench

The maximum force applied to the tip of the allen wrench before the bolt loosened is 60 N. Assume the wrench has a circular cross section with a radius 2 mm. The length of the short segment (touching the screw) is 3 cm a ...

### Calculate the power factor of an electronic system subject

Calculate the power factor of an electronic system subject to a reasonable amount of harmonics given as THD(v) = 1.0%, the displacement factor is 0.92. What would be the calculated error if harmonic components were not t ...

### 1 an ion with the configuration f 2 enters an environment

1. An ion with the configuration f 2 enters an environment of octahedral symmetry. What terms arise in the free ion, and with which terms do they correlate in the complex? 2. In the strong field case, the configuration d ...

### A small three-phase ig has the following nameplate data 110

A small three-phase IG has the following nameplate data: 110 V, 1.140 rpm, 60 Hz, Y connection, and 1250 W. The blocked rotor test at 60 Hz yielded the following: I = 69.4 A, P = 4200 W. The turn ratio between stator and ...

### Using the information given in problem and the properties

Using the information given in Problem and the properties of the standard atmosphere given in Appendix G, estimate the number of molecules per cubic inch at an altitude of 250,000 ft. Problem:- The number of molecules cr ...

### A beam with a constant e i is loaded as showna determine

A beam with a constant E I is loaded as shown. (a) Determine the length a of the overhang such that the elastic curve would be horizontal over support B. (b) Determine the maximum deflection between the supports.

### Using the equations for stress transformationa confirm the

Using the equations for stress transformation, a. confirm the angles that define the planes of maximum and minimum shear stress b. determine the maximum and minimum values of the shear stress

### The professor took us to trip to a place and told us to

The professor took us to trip to a place and told us to write 3 pages about What do i think about the trip? What was interesting? What is my impression ? https://www.dropbox.com/s/29un7cfm1jify5v/2016-11-26_20-42_0.rar?d ...

### Projectdesign a tube bank that will increase the

Project Design a tube bank that will increase the temperature of a 1200 CFM flow of air from 35°F to 100°F. Assume a constant pressure of 1atm. Each tube will have a diameter of 0.5in and a length of 24in. The tube confi ...

### Define the endurance limit of a bolt which is greater the

Define the endurance limit of a bolt ? Which is greater, the static yield strength or the endurance limit of the bolt? When will an increase in preload increase fatigue life? When will an increase in preload decrease fat ...

• 4,153,160 Questions Asked
• 13,132 Experts
• 2,558,936 Questions Answered

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

### WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

### Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

### Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

### Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

### Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro