Predicting Vibration and Noise in A&D Applications

August 29, 2020

11:30 AM IST



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Facing an increasingly competitive, threat-filled environment, aerospace and defense companies must digitally transform their processes and products to deliver radical innovation and maintain market leadership.

Prediction of vibration and sound propagation can play important roles in the design of many products. Examples include noise caused by turbulent flow around structural components, transmission of sound through thin panels and the acoustic performance of piezoelectric devices, etc. Excessive vibration can reduce the fatigue life of aerospace components. Excessive noise levels are the biggest threat in deploying defense equipment on the field.

Virtual assessment of vibration, impact and acoustic performance of products early in the design stage can greatly reduce cost and product development time. Join us to learn about Ansys solutions for vibration and acoustic simulations.

In this session we will discuss on the following topics:

  • Aeroacoustics modeling approaches
  • High-speed flow aero-acoustics modelling examples
  • Validation studies for high-speed flow aeroacoustics
  • Sound radiation due to vibrating structures
  • Different techniques to predict noise in low, mid and high frequency ranges
  • Underwater scattering
  • Diffuse sound-field acoustics
  • Coupling between flow pressure (CFD)/electromagnetic forces and vibro-acoustics
  • Coupling between MEMS and acoustics for sensor application

Examples to be Discussed

  • Acoustics Induced Fatigue to Aerospace Structures
  • Prediction of Windshield Noise
  • Prediction of Electric Motor Noise

Computation of stresses caused by unsteady flow pressure fluctuations on a blade using TBR methods in Ansys CFX. The information is then mapped to the blade geometry in Ansys Mechanical where stresses are determined.

Who should attend?

  • NVH engineers
  • Structural dynamics engineers
  • Turbulent flow analysis engineers
  • Acoustics engineers
  • CAE analysts
  • Design engineers/managers
  • Project leaders and managers


Santhosh M.

Santhosh M.
Lead Technology Specialist, Ansys

Santhosh M is a lead technology specialist at Ansys India, Bangalore. He has 15+ years of comprehensive experience from CAE software solutions, FEA consulting, mechanical product design and testing. He has developed skills in applying numerical methods to solve design challenges and troubleshoot field problems over a wide range of industrial applications. His area of specialization includes structural dynamics and vibro-acoustic analysis.

Nikhil Grover

Bhanu Gupta
Senior Technology Specialist, Ansys

Bhanu Gupta is a senior technology specialist at Ansys India, Noida. He has 11+ years of experience, which includes roles as support engineer, technical pre-sales engineer and software development engineer. Acoustics is his primary focus area. He has been supporting customers across India and is engaged in various acoustic projects on a wide range of applications. Bhanu is a post-graduate in thermal engineering from IIT, Delhi, and a graduate in mechanical engineering from Gobind Ballabh Pant Engineering College.

Some assets related to this webinar are infographics on Facing engineering complexity with limited resources, a video on Turbomachinery Simulation and a report on Technology Developments from Ansys in Aerospace. Please have a look at them to learn more.


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