Workshop 1a – Vibration of a skicabin Direct Frequency Response

• PRE-REQUISITES – before going through this presentation, the reader should have read and understood the following presentations:

– ACOUSTICS_1_General_Program_Organization.pdf

– VIBRO_1_DIRECT_simulations.pdf

• The OBJECTIVES of this workshop are the following:

– Get introduced to the structural components of Actran

– Get introduced to the direct solution sequence

Workshop 1b – Modal Extraction of a ski cabin structure

• PRE-REQUISITES – before going through this presentation, the reader should have read and understood the following presentations:

– Theory general organization

– Theory vibro-acoustic simulations

• The OBJECTIVES of this workshop are the following:

– Get introduced to the modal extraction

– Compare the structure modal behavior with the results obtained during with the workshop Vibro 1a: Vibration of a ski cabin, direct frequency response.

Workshop 1c – Vibration of a ski cabin

• PRE-REQUISITES – before going through this presentation, the reader should have read and understood the following presentations:

– Theory general organization

– Theory vibro-acoustic simulations

– Workshop Vibro 1b: Modal extraction of a ski cabin structure

• The OBJECTIVES of this workshop are the following:

– Get introduced to the modal solution sequence

– Understand the differences between the direct and modal approaches

– Be able to choose the best solution in terms of performance and accuracy

Workshop 2a – Vibro-acoustic Analysis of a Ski Cabin using Compatible Mesh

• PRE-REQUISITES – before going through this presentation, the reader should have read and understood the following presentations:

– Theory acoustic simulations

– Theory vibro-acoustic simulations

– Theory fluid / structure coupling

– Workshop Vibro 1a : vibration of a ski cabin

– Workshop Acoustic 2a : sound level in a ski cabin

• The OBJECTIVES of these workshops are the following:

– Get introduced to the vibro-acoustic application within Actran using a Direct

solution sequence

– Get introduced to the Fluid/Structure interaction

Workshop 2b – Vibro-acoustic Analysis of a Ski Cabin using Incompatible Mesh

• PRE-REQUISITES – before going through this presentation, the reader should have read and understood the following presentations:

– Theory acoustic simulations

– Theory vibro-acoustic simulations

– Theory fluid / structure coupling

– Workshop Vibro 1a : vibration of a ski cabin

– Workshop Acoustic 2a : sound level in a ski cabin

– Workshop Vibro 2a : vibro-acoustic analysis of a ski cabin using compatible mesh

• The OBJECTIVES of this workshop are the following:

– Get introduced to the vibro-acoustic application within Actran using a Direct

solution sequence

– Get introduced to the fluid/structure interaction

– Estimate the quality of a fluid/structure coupling

Workshop 2c – Vibro-acoustic Response of a Ski cabin using a MODAL approach

– Theory : Vibro-Acoustic Simulations

– Theory : Modal Simulations

– Theory : Fluid/Structure Coupling

– Workshop VIBRO 2a : Ski Cabin Coupled using DIRECT approach

The OBJECTIVES of this workshop are the following:

– Get introduced to the vibro-acoustic application within Actran using a Modal

Frequency Response

– Get introduced to the Fluid/Structure interaction in MODAL

– Estimate the quality of a Fluid/Structure coupling

– Understand the differences between the DIRECT and MODAL approaches.

– Be able to choose the best solution in terms of performance and accuracy

Workshop Vibro 6 – Vibro-Acoustic Response of a Structure under a Diffuse Sound Field

The OBJECTIVES of this workshop are the following:

– Get a further insight of Vibro-acoustic applications within Actran using a Modal solution sequence

– Get introduced to the random diffuse sound field excitations in Actran

Workshop 7 – Pre-Stress Effect and Composite

The OBJECTIVES of this workshop are the following:

– Get introduced to the initial Pre Stress computation in Actran

– Get introduced to the composite materials in Actran

Workshop 8a Diffuse Sound Field with Masking Effects Spatial Antenna under a DSF

Workshop 8b Diffuse Sound Field with Masking Effects – With Meshing

Workshop 8c Diffuse Sound Field with Masking Effects – Exterior acoustic

The OBJECTIVES of this workshop are the following:

– Get introduced to the masking effect under a DSF excitation

– Get introduced to spatial applications

Workshop 10 – Simplified Solar Panel

Workshop 12 – Acoustic Radiation of a Vibrating Structure with a cover

Workshop 13 : Structural Connections

The OBJECTIVES of this workshop are the following:

– Get introduced to the use of Spring, Rigid Body and Mean Constrain Elements to model the connections in Actran (3 common types of connections: Spot Weld, Bolt and Adhesive are represented in this workshop)

– Understand how a Nastran model is translated to an Actran model

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