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Highly dynamic excitation and shock resistance

Novicos is a service provider for shock analysis

Highly dynamic excitations are pulses with a period duration of a few milliseconds. These shocks generate complex, non-linear responses and rapidly changing loads that require precise measurements, accurate modeling and sophisticated numerical methods.

As a service provider for shock analyses, we support you in ensuring the performance, safety and durability of systems under extreme loads (shock resistance).

Which suggestion types concern you?

We calculate all forms of highly dynamic excitations

Foot point stimulation 

with the consideration of the ambient medium

The base excitation acts at the base of a structure and is often a displacement, a velocity or an acceleration. The calculation is carried out using methods such as the finite element method (FEM) or analytical models to analyze the behavior of the structure.

Non-linear reactions

Structures under extreme loads or large deformations react non-linearly. They are influenced, for example, by damping, contact and plastic material behavior.

Frequency dependence

The response of a structure to a base excitation depends on the frequency or the time response of the excitation. If required, we take into account different frequency ranges and the natural vibration behavior of the structure.

Modeling assumptions and boundary conditions

The exact representation of the boundary conditions of a structure is crucial for the calculation of the base excitation. We use various methods to check the plausibility of assumptions.

Computing intensity

The calculations in the time domain of complex structures are very computationally intensive. We use methods to reduce the computing intensity where necessary and work with high-performance computing clusters.

Shock wave propagation 

We calculate shock waves in fluids (e.g. water and air)

Rapid pressure changes

Shock waves are characterized by rapid pressure changes. This requires precise simulation and analysis in order to better understand the behavior of materials and structures under these extreme loads.

Reflection and refraction

When shock waves hit interfaces between different materials or fluids, the waves are reflected and refracted. This can change the intensity and direction of the shock wave, which is crucial for estimating the loads on structures.

Damping and energy absorption

An important aspect in the analysis of shock wave propagation is the investigation of attenuation effects and energy absorption in materials and structures. By taking these effects into account, we can develop proposals for effective protection or attenuation measures.

Fluid-structure interaction

The propagation of shock waves in fluids interacting with solid structures leads to complex interactions. We are able to simulate this complex interaction.

Time-varying loads

Transient calculations (time domain)

We use transient calculations to analyze the reaction of a structure to loads that change over time. By examining the structure in the time domain, we check the

Time-varying loads

Transient calculations (time domain)

We use transient calculations to analyze the response of a structure to time-varying loads. By examining the structure in the time domain, we check the dynamic response behavior of the structure, such as vibrations and reaction times, to ensure that it can withstand the extreme loads during shock events.

Periodic (harmonic) oscillations

Frequency response analysis (frequency range)

Frequency response analysis is used to determine the steady-state response of a structure to harmonic loads, as well as the behavior of the structure over a wide frequency range. In doing so, loads

Periodic (harmonic) oscillations

Frequency response analysis (frequency range)

With frequency response analysis, we determine the steady-state response of a structure to harmonic loads, as well as the behavior of the structure over a wide frequency range. This is based on loads that act over a long period of time with constant amplitude and frequency. Typical applications include machines under operating vibrations or vibration loads caused by rotating components.

Problems with a broad frequency spectrum

Response spectrum analysis (modal range)

The response spectrum analysis is based on the investigation of the natural frequencies and eigenmodes of a structure. The overall response of the system is then a superposition of these, depending on

Problems with a broad frequency spectrum

Response spectrum analysis (modal range)

The response spectrum analysis is based on the investigation of the natural frequencies and eigenmodes of a structure. The overall response of the system is then a superposition of these, depending on the excitation. By analyzing the resonant frequencies and the associated mode shapes, we can investigate the behavior of the structure in different frequency ranges and better understand its response to shock loads.

Deformations, cracks, material failure

Inclusion of non-linear material models

In order to depict the reality of material reactions under shock loads more accurately, we include non-linear material models in our analyses. These models take into account, for example, plastic

Deformations, cracks, material failure

Inclusion of non-linear material models

In order to depict the reality of material reactions under shock loads more accurately, we include non-linear material models in our analyses. These models take into account, for example, plastic deformation, cracking or material failure that can occur under high loads. You benefit from more accurate predictions about the stability, safety and durability of your product under extreme load conditions.

What calculation does your application require?

Tell me about your challenge! I will advise you free of charge and without obligation on which calculations are useful for testing the functionality and safety of your product.

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Andreas Klut

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Novicos GmbH

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