Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

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

If the kansas city building code specified that a floor

If the Kansas City Building Code specified that a floor structure must support a live load of 4.79 kPa (100 psf), and if the walkway length L = 9.1 m = 30.0 ft and width b = 2 m = 6.56 ft, what contribution is made to th ...

You have been introduced to a number of different tools

You have been introduced to a number of different tools that can be used to help IE's and MfgE's analyze and develop solutions to make processes more effective and efficient. Watch the video located at http://www.iienet2 ...

Describe the mil-std-1312 nas test name three generic ways

Describe the MIL-STD-1312 (NAS) test? Name three generic ways to prevent or at least minimize self-loosening? Define prevailing torque? A proper length-to-diameter ratio for the bolt can reduce or eliminate self-loosenin ...

1 the dam shown below is 100 m wide determine the magnitude

1. The dam shown below is 100 m wide. Determine the magnitude and location of the force on the inclined surface. 2. The float in a toilet tank is a sphere of radius R and is made of a material with ρ. An upward buoyant f ...

For the bar in problem 1112 find the largest allowable

For the bar in Problem 11.12, find the largest allowable value of P if the allowable compressive stress is 250 MPa. Problem 11.12: A steel bar with the cross section shown and effective length L = 2.5 m is subjected to a ...

1 what is a design inequality2 how is the usual design

1. What is a design inequality? 2. How is the usual design inequality modified to account for statistical variability? 3. What is a load factor? A load effect? A resistance factor? 4. What is a limit-states design?

On a certain day the barometric pressure at sea level is

On a certain day the barometric pressure at sea level is 30.1 in. Hg, and the temperature is 70°F. The pressure gage in an airplane in flight indicates a pressure of 10.6 psia, and the temperature gage shows the air temp ...

Figure a shows a steel i-beam cross section note not

Figure (a) shows a steel I-beam cross section (note, not symmetric about the y axis). Two steel plates with cross section 10 mm × 200 mm are welded to the beam. Figure (b) and the 3D inset show the configuration of the c ...

A fan draws air from the atmosphere through a 030-mdiameter

A fan draws air from the atmosphere through a 0.30-mdiameter round duct that has a smoothly rounded entrance. A differential manometer connected to an opening in the wall of the duct shows a vacuum pressure of 2.5 cm of ...

Heat transfer problem -a thermocouple is to be utilized to

Heat Transfer Problem - A thermocouple is to be utilized to measure the temperature of exhaust gases from an automobile engine and the effect of the cylindrical radiation shield installed as shown in the image, is to be ...

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

Ask Experts for help!!

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