Jibin Raj

11 Questions 24 Answers 0 Followers

Questions related from Jibin Raj

How can I apply Differential Quadrature method to solve a fourth order differential equation?

I am trying to solve the free vibration of a cantilever beam. I am attaching a word document in which I have given the progress of my work. I am not able to converge to fundamental frequency. I...

02 February 2015 2,397 28 View

How to decide upon the nature of grid points to be selected in Differential Quadrature method?

Is there any particular criterion with which we decide upon which grid point to select for analysis? I have used equations given in the review paper by C.W.Bert and M.Malik. I am working on the...

01 January 2015 9,101 4 View

How are the boundary conditions incorporated while using the Differential Quadrature method?

When dealing with 2-D Laplace equation how is Differential quadrature method applied to get the solution. How are the four boundary conditions incorporated into the formulation?

12 December 2014 1,010 12 View

What is numerical oscillation and what are the main cause of this phenomenon.?

I performed a Ritz analysis on 1-D Laplace equation and my results are diverging from the exact results. So is numerical oscillation is the only cause or can it be because of any other reason?

09 September 2014 3,638 6 View

Is there any standard procedure to get the weak form of a governing equation?

I basically need to know how to get the corresponding functional form for a differential equation.?My intention is to apply Ritz method to various structural problems.

08 August 2014 6,003 0 View

Can someone help me to get the Paper authored by Walter Ritz in 1909 and 1908?

The paper is available in German but I couldn't find an English translation of the same. If possible please suggest me a link.

07 July 2014 8,907 0 View

What is a thin-walled beam? What are their advantages compared to normal beams?

I know a thin walled beam is the one in which the length is one order more than other crossectional dimensions. Please explain why it is widely used over other beams?

07 July 2014 3,155 5 View

What is the significance of Laplace and Poisson equations in Mechanical Engineering?

Please help me with an example other than the heat transfer case. Also help me where exactly can we use Laplace or poisson 's equation.

07 July 2014 2,257 15 View

What is the difference between Rayleigh-Ritz method and Ritz method?

I know Ritz method is applied directly to the variational formulation. Basically what makes the Ritz method unique?

07 July 2014 6,350 10 View

Can some one help me out with the L operator of a linear differential equation?

Lu=d2u(x)/dx2. What is the meaning of this expression? The R.H.S is a second order derivative.

06 June 2014 3,558 1 View

Where is the differential quadrature method best used? Can someone suggest good introductory material on this method?

I am new to this method. I have a basic idea about the RItz method. Please suggest a good introductory material for this topic.

06 June 2014 7,002 2 View