--%>
Assignment Help - homework help

Problem on damping coefficient

Vertical suspension system of a car can be modeled as single degree of the freedom system. Consider that the car with mass m consists of four shock absorbers with equal stiffness and damping of k and c, corresspondingly:

(a) Due to self-weight of the car, the suspension system is deflected by 0.03m. The suspension is made to be critically damped. If the car has a mass of 1530 kg, calculate the equivalent damping coefficient of the suspension system.
 
(b) Plot the displacement response of the suspension system in part (a). Also plot on the same diagram the responses of the suspension system if the initial velocities are 2 cm/s and -2 cm/s.
 
(c) If four passengers with the average mass of 70 kg each and luggage of 50 kg are in the car, how does this affect the effective damping ratio? Plot the displacement response of the suspension system on the same plot  in part (b) and comment the vibration characteristic of the car with passengers and luggage.

   Related Questions in Mechanical Engineering

  • Q : Difference between projectile motion

    Difference between projectile motion and rocket motion:A projectile has no motor or rocket on it, therefore all of its momentum is provided to it as it is launched. An illustration of a projectile would be pen which you throw across a room.

    		•
  • Q : Problem on damping coefficient Vertical

    Vertical suspension system of a car can be modeled as single degree of the freedom system. Consider that the car with mass m consists of four shock absorbers with equal stiffness and damping of k and c, corresspondingly: (a) Due to

    		•
  • Q : Mode Superposition Method Define Mode

    Define Mode Superposition Method in brief?

    		•
  • Q : Arena Are you able to assist with these

    Are you able to assist with these two assignments in Arena simulation below? You can use the Basic Process instead of Blocks and Elements. An office of state license bureau has two types of arrivals. Individuals interested in purchasing new plates are characterized to have inter-arrival times dis

    		•
  • Q : Aim of an airspeed indicator in aircraft

    What is the main aim of an airspeed indicator in aircraft?

    		•
  • Q : What is carnot engine Explain the term

    Explain the term Carnot engine?

    		•
  • Q : Medium-sized turbine How pressure of

    How pressure of oil is managed when starting or stopping the medium-sized turbine?

    		•
  • Q : Problem on discharge head loss Water is

    Water is draining from the tank A to tank B. The elevation difference among the two tanks is 10 m. The pipe joining the two tanks has a sudden-expansion section as shown below. The cross-sectional area of the pipe from A is 8 cm2, and the area of the pipe f

    		•
  • Q : Value Engineering The value engineering

    The value engineering method focuses on functional values, and aims to increase the difference between the cost and value of a product: by lowering cost and/or adding value. In many cases, the emphasis is simply on reducing costs, and the design effor

    		•
  • Q : What is wrap-around Wrap-around : The

    Wrap-around: The main aim of a wrap-a-round is to make a straight line about a pipe to help in cutting the pipe to its appropriate length. It is employed mostly as a straight edge or a template.   

    		•