Mode Shape

Glossary Term

A mode shape is the deformation that the component would show when vibrating at the natural frequency.

The terms mode shape or natural vibration shape are used in structural dynamics. A mode shape describes the deformation that the component would show when vibrating at the natural frequency. However, the vibration and deformation do not occur until there is an excitation. Depending on this excitation, the result is the total vibration of a structural component, which is basically comprised of the individual vibration shapes.

Thus, natural frequencies and mode shapes indicate how the structure behaves under a dynamic load. The amplitudes of mode shapes are not suitable for a technical quantitative evaluation of the structural component (they are properly scaled in the solution). Rather, the mode shape characteristic is suitable for the qualitative assessment of the dynamics of the structural component.

Keywords

Mode shape Natural frequency Dynamics

Links

Online Training | English

RFEM for Students | Part 3

Online Training 30 November 2020 9:00 AM - 12:00 PM CET

Stability Design in Steel Construction with RFEM and RSTAB

Stability Design in Steel Construction with RFEM and RSTAB

Webinar 1 December 2020 2:00 PM - 2:45 PM CET

Online Training | English

RFEM | Steel Basics

Online Training 8 December 2020 9:00 AM - 12:00 PM EDT

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RFEM for Students | Part 3

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Dlubal Info Day

Dlubal Info Day Online | 15 December 2020

Webinar 15 December 2020 9:00 AM - 4:00 PM CET

FEA debugging and optimization in RFEM

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Soil-Structure Interaction in RFEM

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Webinar 27 October 2020 2:00 PM - 2:45 PM CET

NBC 2015 Modal Response Spectrum Analysis in RFEM

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Documenting Results in the RFEM Printout Report

Documenting Results in the RFEM Printout Report

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ACI 318-19 Concrete Design in RFEM

Webinar 20 August 2020 2:00 PM - 3:00 PM EDT

How to Be More Productive Using RFEM

How to Be More Productive Using RFEM

Webinar 7 July 2020 3:00 PM - 4:00 PM CEST

Introduction to Solid Modeling \n in RFEM

Introduction to Solid Modeling in RFEM

Webinar 30 June 2020 2:00 PM - 3:00 PM EDT

Modeling with Solids in RFEM

Modeling with Solids in RFEM

Webinar 9 June 2020 3:00 PM - 3:45 PM CEST

CSA A23.3 Concrete Design in RFEM

CSA A23.3:19 Concrete Design in RFEM

Webinar 14 May 2020 2:00 PM - 3:00 PM EDT

Programmable COM Interface for RFEM/RSTAB

Programmable COM Interface for RFEM/RSTAB

Webinar 12 May 2020 3:00 PM - 3:45 PM CEST

Designing Cold-Formed Steel Sections According to Eurocode 3

Designing Cold-Formed Steel Sections According to Eurocode 3

Webinar 30 April 2020 3:00 PM - 3:45 PM CEST

RFEM Main Program
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Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

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RF-DYNAM Pro - Natural Vibrations  5.xx

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Dynamic analysis of natural frequencies and mode shapes of member, surface, and solid models

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Seismic and static load analysis using the multi-modal response spectrum analysis

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The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

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DYNAM Pro - Natural Vibrations 8.xx

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Dynamic analysis of natural frequencies and mode shapes of member models

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850.00 USD
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Seismic and static load analysis using the multi-modal response spectrum analysis

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