Learning Forum

[muhammed-tariq]

Hello Dears,

Since, I've started Learning Ansys I have some question and can't find a specific comprehensive answer for it. the main question is:

When to use which study type?

For Example: what is the difference between Motion Study (With one or more bodies flexible) and Transient Analysis (with the same bodies flexible)?

I mean when to use which? as both are offereing stresses on the flexible bodies?

Q2: Does motion analysis support non-linearity (like material, Geometry and Contacts)

Q3: Can Harmonic Analysis be non-linear? and support non-linear materila and contacts?

Q4: Can MSUB Transinet analysis be used with Non-linear contacts like (Frictional or Frictionless)?

Q5: Is the main difference between Transient analysis and Non-linear static is inertia calculations? if so, why use Quasi-Static when it is easier to solve with non-linear static? 

Q6: How it is available to use quasi-static in static structural analysis? as it is mainly not account for any inertia!

I know it might seem like basic questions but I really think they are the main key to understand when to use which study.

Thanks in advance for your help!

Regards

[peteroznewman]

[Akshay Maniyar]

 

Hi Muhammad,

1. Ansys Motion is more focused on the dynamic behavior of multibody systems, while Ansys Transient Analysis aims to study the time-varying behavior of structures and components, including both rigid and flexible bodies.

2. Ansys motion does support all types of nonlinearity

Motion Capabilities (ansys.com)

3. Harmonic Analysis is a linear dynamic analysis method that predicts the steady-state dynamic response of a structure under harmonic loads

4. Please check the below course on MSUB analysis.

Mode Superposition Transient Analysis Intro | Ansys Courses

5. Quasi-static analysis is employed when the load is varying slowly, and the system’s response can be considered quasi-static, i.e., the system’s dynamic effects can be neglected, but the non-linearities (material, geometry, or contact) are still important. Quasi-static analysis can be computationally less expensive than transient dynamic analysis because it omits time-dependent properties and calculations. In summary, you would use Non-linear static analysis for systems with non-linearities, where inertial effects are not significant, while Transient analysis is more appropriate for systems that include time-varying loads or properties and require the consideration of inertia.

Thanks,

Akshay Maniyar