Determine the natural frequencies and the natural modes

Assignment Help Civil Engineering
Reference no: EM13313998

Consider the rocket on a test stand . The nose of the rocket is fixed. The rocket is of length L, constant EA and constant m, mass per unit length. To investigate longitudinal dynamics, the rocket is modeled using axial elements of equal length.

Determine the natural frequencies and the natural modes using a model with nine elements of equal length. Compare the results with those for the three-element model given in the lecture notes as well as the exact solution. Comment on the accuracy of the natural frequencies and the natural modes as the number of elements increases. Note: For convenience, introduce p=((w^2)*(mL^2))/EA

Reference no: EM13313998

Questions Cloud

What is difference between a state graph and a search tree : Describe how the problem of traveling from one city to another could be framed as a production system. What are the states? What are the productions?
Determine the most efficient cross section with a bedslope : An open channel with a trapezoidal configuration with side batters 1V:3H is to be designed to carry 1.0m^3/s with a bedslope of 0.0065. The channel is lined with concrete with manning's n of 0.011.
Calculate the speed of the skater : A 75kg skater starts at a height of 6m above ground, the speed at the lowest point of the track is 10.84 m/s^2. Calculate the speed of the skater
At which angle will the photon scatter : At which angle will the photon scatter with respect to its original direction? (The accepted unit abbreviations for angles are either 'deg' for degrees or 'rad' for radians.)
Determine the natural frequencies and the natural modes : Consider the rocket on a test stand . The nose of the rocket is fixed. The rocket is of length L, constant EA and constant m, mass per unit length. To investigate longitudinal dynamics, the rocket is modeled using axial elements of equal length.
Explain the transition-metal ions that have the electron : Draw energy level diagram to show the low- and high spin octahedral complexes of the transition-metal ions that have the electron configurations d4 d5 d6 and d7
Discuss their main applicability as well as their advantages : Autonomous (intelligent) software agents are used in Artificial Intelligence to solve an increasing number of complex problems.
Preventive maintenance is in terms of computer hardware : Discuss what preventive maintenance is, in terms of computer hardware and software. Write a short report on preventive maintenance tasks. Be sure to detail how often each task should be carried out, and under what circumstances.
Depict energy level diagram to show the low : Draw energy level diagram to show the low- and high spin octahedral complexes of the transition-metal ions that have the electron configurations d4 d5 d6 and d7

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine what is the radial-horizontal stress at the point

A tire carries a 5,000-lb load and has a pressure of 100 psi. The pavement has a modulus of elasticity of 43,500 psi. A deflection of 0.016 inches is observed at a point on the pavement surface 0.8 inches away from the tire load.

  Graph the data from the table on log-log paper using radius

Based on volume of a sphere V=4/3(pi)r^3, create a table of volume vs. radius allowing radius to vary from 2.0 to 10.0 cm in 1 cm increments. Graph the data from the table on log-log paper using radius as the independent variable.

  Determine the probability of failure of the structure

If the load effect has a mean value of 88 kips and a standard deviation of 1.8 kips. If the nominal material strength is 160 kips Determine the followings 1- The probability of failure of the structure under the nominal resistance and service load..

  What is the mass of the fish

A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.00 Hz. Ignoring the mass of the spring, what is the mass of the fish?

  Determine the reactions at the supports by a rocker

The compound beam is fixed at A and supported by a rocker at B and C. There are hinges (pins) at D and E. Determine the reactions at the supports.

  Estimate cu value at a and b after clay layer consolidated

two isotropically consolidated undrained (ciu) triaxial tests, CU1 triaxial tests, CU1 and CU2, were conducted on a normally consolidated (Nc) clay under effective consolidation stresses of 100 and 200 kPa respectively.

  Derive formulas to show that normal stresses in rods

Derive formulas to show that normal stresses in rods (1) and (2) are independent of the material used in rods, as long as they have the same modulus of elasticity, that is, E_1 = E_2.

  Determine the horizontal components of the forces necessary

The pressure at the end of the bend is 78 pounds per square inch. Determine the horizontal components of the forces necessary to hold the bend in place.

  Commercial management in civil engineering

Devise a appropriate management system that you as a commercial manager for the contractor would recommend to the project team for use on a construction or building contract.

  Solve given differential equation by separation of variables

Given computer-generated direction field. Then sketch, by hand, an approximate solution curve that passes through each of the indicated points. Use different colored pencils for each solution curve.

  Are there any situations when parallel flow option

Are there any situations when parallel flow option may be preferred instead of a counter flow heat exchanger

  Determine the ph of solution if an equivalent amount of naoh

A solution contains 300 mg/L of acetic acid. Determine the pH of the solution if an equivalent amount of sodium hydroxide (NaOH) is added to it. Determine the concentration of NaOH required (in mg/L).

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd