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Siemens Digital Industries Software › › › Modal Analysis

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Siemens Digital Industries Software › › › Modal Analysis

Modal Testing

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Characterize your structure’s dynamic behavior with accurate FRFs

Accurate frequency response functions (FRFs) are essential to many experimental NVH analyses, such as modal analysis, transfer path analysis, and vibration troubleshooting. They provide a complete yet simple representation of the dynamic behavior of the structure, and they can be further exploited to identify modal parameters.

There is no single way of measuring FRFs. Simcenter Testing Solutions offer a wide range of capabilities to obtain accurate FRFs. Rely on our dedicated solutions for impact hammer and shaker testing, as well as on our wide selection of excitation profiles, to execute your testing scenarios and obtain top-quality data quickly and efficiently.

Modal Testing

Accurate frequency response functions (FRFs) are essential to many experimental NVH analyses, such as modal analysis, transfer path analysis, and vibration troubleshooting. They provide a complete yet simple representation of the dynamic behavior of the structure, and they can be further exploited to identify modal parameters.

There is no single way of measuring FRFs. Simcenter Testing Solutions offer a wide range of capabilities to obtain accurate FRFs. Rely on our dedicated solutions for impact hammer and shaker testing, as well as on our wide selection of excitation profiles, to execute your testing scenarios and obtain top-quality data quickly and efficiently.

Our modal testing solutions include powerful features and a broad range of excitation capabilities. Read more below.

Broadband Shaker Testing

Shaker tests allow to excite structures over a wide frequency range, to have more repeatable measurements and to optimize your FRF measurements to meet the highest quality standard. Ensure that even local resonances are properly captured, by driving up to 16 shakers with the broadest range of excitation signals.

Impact Testing

Test your structures in a wide frequency range and in all conditions with the impulse excitation of a modal hammer. The hammer gives you the opportunity to quickly excite several points without changing your sensor configuration, as well as the flexibility to access even difficult locations. Modal hammer testing is an ideal solution for in-field testing as the required instrumentation is minimal.

Normal Mode Testing

Tests of extremely critical structures, such as aircraft, require a very accurate and reliable identification of single modes rather than excitation over a wide frequency band. Normal mode testing allows you to control the shakers and lock them on a predefined mode, relying on the so-called phase appropriation testing technique.

Sweeping Frequency Shaker Testing

When testing larger structures, you realize the importance of maximizing the energy per frequency line in order to improve FRF measurements. For critical or expensive components, you want to control the amplitude of excitation and to maintain it at a predefined level in order to preserve the structural integrity. Our solutions for sweeping frequency shaker testing allow you excite structures in an optimal way. You can also verify whether your structure exhibits a non-linear behavior by controlling the force level.

Sweeping Frequency Shaker Testing
Modal analysis

On-Demand Webinar | 35 minutes

Understand the basics and mathematics behind modal analysis.

Modal analysis

Attend this webinar and learn the basics of modal analysis, how modal analysis can help you get to the root cause of noise or vibration issues and how you can efficiently solve them.

Watch the webinar

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Modal analysis
On-Demand Webinar

Understand the basics and mathematics behind modal analysis.

Attend this webinar and learn the basics of modal analysis, how modal analysis can help you get to the root cause of noise or vibration issues and ...

35 minutes

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