Innovation and collaborative, synchronized program management for new programs
Aerospace & Defense
Innovation and collaborative, synchronized program management for new programs
Explore IndustryAutomotive & Transportation
Integration of mechanical, software and electronic systems technologies for vehicle systems
Explore IndustryProdukty konsumenckie i handel detaliczny
Innowacyjność produktów poprzez efektywne zarządzanie zintegrowanymi recepturami, opakowaniami i procesami produkcyjnymi
Dowiedz się więcej o branżyElectronics & Semiconductors
New product development leverages data to improve quality and profitability and reduce time-to-market and costs
Explore IndustryEnergy & Utilities
Supply chain collaboration in design, construction, maintenance and retirement of mission-critical assets
Explore IndustryHeavy Equipment
Construction, mining, and agricultural heavy equipment manufacturers striving for superior performance
Explore IndustryIndustrial Machinery
Integration of manufacturing process planning with design and engineering for today’s machine complexity
Explore IndustryInsurance & Financial
Visibility, compliance and accountability for insurance and financial industries
Explore IndustryMarine
Shipbuilding innovation to sustainably reduce the cost of developing future fleets
Explore IndustryMedia & Telecommunications
Siemens PLM Software, a leader in media and telecommunications software, delivers digital solutions for cutting-edge technology supporting complex products in a rapidly changing market.
Explore IndustryMedical Devices & Pharmaceuticals
“Personalized product innovation” through digitalization to meet market demands and reduce costs
Explore IndustrySmall & Medium Business
Remove barriers and grow while maintaining your bottom line. We’re democratizing the most robust digital twins for your small and medium businesses.
Explore IndustrySiemens Digital Industries Software What is Modal Analysis? | Siemens PLM
Siemens Digital Industries Software What is Modal Analysis? | Siemens PLM
Modal analysis is the study of the dynamic properties of linear structures, based on structural testing or finite element analysis-based simulation. These dynamic properties include resonance frequencies (also called “natural frequencies” or “eigenfrequencies”) and structural modes (or “eigenmodes”). Dynamic properties are dependent on the mass, stiffness and damping distribution on the structure, and determine structural vibration behavior when exposed to operational loads. Every deformation of a linear structural system can be expressed as a linear combination of the structural modes, which form an orthonormal vector base.
Modal testing combines data acquisition with further analysis. In an industrial application, the complete process is often referred to as modal testing and analysis, or experimental modal analysis (EMA).
Results of modal testing and analysis are used in various simulation and testing applications, including vibration response calculations, root cause analysis of vibration problems and damage detection, but also for adding flexibility to multibody analysis and speeding up durability and vibro-acoustic simulations. Modal-based calculations are very effective and allow efficient evaluation of structural changes to responses of any kind.
Understand how a structure vibrate
Correlate and update simulation models
Speed up structural, vibro-acoustic and durability calculations
Include flexibility in multibody simulation models