Frequency Domain Dynamics in Modal Analysis

- October 15, 2023 at 2:47 pm
  
  Muhammad Aditya Nugraha
  Subscriber
  
  In "Response Spectrum Analysis of Building" Homework, natural frequencies ranging from 2.4 Hz to 15.4 Hz were obtained. Based on what are these natural frequencies?, considering that no external loading input (such as forces, pressure, acceleration, etc.) was included during the modal analysis
- October 16, 2023 at 12:59 am
  
  Raihan Lutfianto
  Subscriber
  
  Hi Aditya. A very good question here. Response Spectrum model is our way of predicting structural responses due to earthquake-type and shock-type loads. So, the characteristics of this analysis are: "short", "non-deterministic", and "time-dependent". You may consider this figure.
  
  You are correct, the x-axis here is the natural frequency of the system. To fully understand what the natural frequencies are, please refer to this material https://youtube.com/playlist?list=PLtt6-ZgUFmMLGWlLxHN_TB6MXsWbNoFaG&feature=shared. We will learn this material in 3-4 weeks from now.

Viewing 1 reply thread

You must be logged in to reply to this topic.

Ansys Innovation Space

SimACE-23

Boost Ansys Fluent Simulations with AWS

Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.

Earth Rescue – An Ansys Online Series

The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.

Ansys Blog

Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.

Trending discussions