Haider Rizvi

3 Questions 3 Answers 0 Followers

Questions related from Haider Rizvi

Encountering Negative Frequencies in Modal Analysis of Reinforced Concrete Structure in Abaqus?

Hello, I am currently conducting a modal analysis on a reinforced concrete structure using Abaqus, and I am encountering an issue where all the natural frequencies calculated are negative. The...

12 January 2024 3,566 4 View

How can I generate image from Delay and Sum algorithm?

I am trying to find the pixel vales by using DAS algorithm, I have calculated the envelope of the signals by using Hilbert transform and then calculated the arrival time of a signal traveling from...

20 October 2019 10,065 1 View

Where does this extra wave come from?

Using Abaqus, I am trying to generate symmetric lamb wave mode in a simple Aluminum plate by applying symmetric point force parallel to the plate. The extra wave followed by the S0 mode appears...

04 September 2019 7,335 5 View