Comsol Transient Vibration Analysis

In summary, the conversation is about describing initial conditions or forces in Comsol and Ansys. The individual is having trouble finding this information in the manual and has tried setting initial displacements but it resulted in incorrect and damped oscillations. They also tried defining a function for the force input but the output waveform is still not correct. They are seeking help to resolve this issue.
  • #1
incensus
6
0
hi all..
How can i describe initial conditions or initial forces in comsol(like wave forms such as ramp or parabolic)? I couldn't find it in the manual.
in ansys, i do it in time steps(in solution options).(like t=0, F=10 t=0.001 F=0)
I tried to give initial displacements to the points but it didnt work,either.. It gave ridiculous results..like damped oscillations when there was no damping..
thank you for help..
 
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  • #2
I defined a function for the force input (at the options menu).. i thought it worked.. but still the output waveform is not correct(not a full sinusoid.. a more like saw signal.. and although there is no damping, its a damped signal..) help : \
 
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1. What is Comsol Transient Vibration Analysis?

Comsol Transient Vibration Analysis is a computational tool used in engineering and physics to simulate and analyze the dynamic behavior of structures and systems under varying vibration conditions. It is based on the finite element method and can accurately predict the responses of structures to transient vibrations.

2. How does Comsol Transient Vibration Analysis work?

Comsol Transient Vibration Analysis works by breaking down a complex structure into smaller parts called finite elements. These elements are then connected to each other and their behavior is simulated using mathematical equations. The results are then combined to give a comprehensive analysis of the structure's vibration response.

3. What types of structures can be analyzed using Comsol Transient Vibration Analysis?

Comsol Transient Vibration Analysis can be used to analyze a wide range of structures, including mechanical systems, buildings, bridges, and other civil engineering structures. It can also be used to analyze the vibration behavior of microelectromechanical systems (MEMS) and other small-scale structures.

4. What are the benefits of using Comsol Transient Vibration Analysis?

Comsol Transient Vibration Analysis offers several benefits, including accurate prediction of vibrations, flexibility in modeling and customizing structures, and the ability to simulate complex interactions between different components. It also allows for the analysis of multiple scenarios and can aid in the design and optimization of structures to reduce vibration risks.

5. What are some real-world applications of Comsol Transient Vibration Analysis?

Comsol Transient Vibration Analysis is commonly used in various industries, such as aerospace, automotive, and civil engineering, to analyze and design structures that are subjected to vibrations. It is also used in the development of medical devices, electronics, and other products that require precise and reliable vibration analysis. Additionally, it can be used in research and development studies to gain a better understanding of vibration behavior in different environments.

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