Full-body laser vibrometry scan of a car in a measurement environment.

Wind Tunnel Testing

Maximum Precision in Wind Tunnel Testing with the New SMART Series

Our latest generation of laser Doppler vibrometers (LDVs), the SMART series, provides a comprehensive solution for precise vibration measurement in wind tunnels. LDVs enable non-contact vibration measurements and can be used for a wide range of applications in industries such as automotive, aerospace, and civil engineering. Cars, aircraft, high-rise buildings, bridges, and their models can now be analyzed holistically in the wind tunnel—in real time and with maximum accuracy.

Car in a wind tunnel for full-vehicle vibration measurement.
Full-body vibration measurement of a vehicle model in a wind tunnel

Automotive industry: Optimizing vehicle stability

Optimizing structural dynamics, aerodynamics, and acoustics is critical to the success of modern vehicle development. With the SMART series from Optomet, vehicle models can be examined in the wind tunnel to obtain precise data on their vibration behavior under aerodynamic excitation. Non-contact laser Doppler vibrometry enables 360° vibration measurement of even the smallest vibrations across entire vehicles without disrupting the aerodynamic flow.

Benefits for vehicle development

Enhanced comfort:

By precisely measuring and analyzing vibrations, undesirable vibrations affecting the vehicle interior can be minimized. This reduces noise and vibration inside the vehicle, significantly improving ride comfort.

Optimized driving dynamics:

Vibrations caused by external factors such as wind or road conditions while driving can be simulated through wind tunnel measurements, enabling targeted optimization. This improves driving stability and provides a smoother overall driving experience.

Maintaining structural integrity:

Aerodynamics and vibration behavior can be optimized without compromising the vehicle's structural integrity. The SMART series precisely measures vibrations, enabling engineers to ensure that the vehicle structure remains stable and safe.

Improved aerodynamics:

During non-contact vibration measurement with the SMART vibrometry system, aerodynamics can be evaluated simultaneously because the airflow remains unobstructed. In addition, airflow around the vehicle can induce vibrations, for example due to flow separation or vortex shedding. The vibration data can therefore be used to optimize the vehicle's shape and minimize aerodynamic drag, thereby increasing energy efficiency.

Aircraft model in a wind tunnel for vibration measurement across the entire model.
Vibration measurement on an aircraft model in a wind tunnel

Aerospace: Reducing noise and vibration

In aviation, reducing noise and vibration is essential to passenger safety and comfort, as well as to the structural service life of aircraft components. The SMART series from Optomet precisely measures even the smallest vibrations on aircraft models in wind tunnels. This enables structural weaknesses to be identified at an early stage and addressed through targeted improvements.

Benefits for aircraft development:

Reduced noise emissions:

By precisely measuring vibrations in critical areas of the aircraft, such as the wings or engines, disruptive noise can be identified at an early stage and reduced in a targeted manner. This significantly improves the acoustic environment in the cockpit and passenger cabin, greatly enhancing comfort for passengers and crew.

Optimizing vibration for greater efficiency:

The SMART series measures vibrations caused by aerodynamic loads and mechanical stresses during flight. This detailed data helps engineers optimize the aircraft structure precisely rather than applying excessive design margins across the board. This reduces vibration, material fatigue, maintenance requirements, and component weight, thereby increasing efficiency.

Enhance safety and reliability:

By monitoring and analyzing even the smallest vibrations, the SMART series helps improve structural safety. Engineers gain deeper insights into how the aircraft behaves under load, enabling them to make informed decisions that enhance its overall reliability.

Improved aerodynamics:

Structural vibrations often indicate underlying aerodynamic phenomena such as flow separation or turbulence. The SMART series enables developers to pinpoint these areas and selectively refine the design to improve airflow and efficiency.

Tower model in a wind tunnel for vibration measurements across the entire model.
Vibration analysis of a high-rise building model under wind load

Civil engineering: Structural analysis of high-rise buildings

Vibration analysis plays a key role in the construction industry by helping to ensure the stability and safety of high-rise buildings. The SMART series from Optomet is used specifically to measure vibrations in high-rise building models in wind tunnels. This advanced technology provides precise data on how structures behave under wind loads, enabling informed optimization of building designs.

Benefits for high-rise building development:

Stability and safety under wind loads:

The SMART series captures large-scale motion and small vibrations in high-rise building models, providing valuable insights into how the structure responds to strong wind forces. Engineers can use this data to ensure that the building remains stable in extreme weather conditions and does not begin to sway when excited.

Early detection of vulnerabilities:

Precise vibration maps make it possible to identify vulnerabilities in the building structure at an early stage. These areas can then be selectively reinforced to ensure the building's long-term stability and safety.

Optimization of building designs:

Using the detailed vibration data captured by the SMART series, architects and engineers can adapt the high-rise design to make it less susceptible to wind forces. This improves structural efficiency and results in a safer finished building.

Simulation of real-world conditions in the wind tunnel:

The SMART series makes it possible to simulate the behavior of a building model under realistic wind conditions. The resulting data enables accurate predictions of how the high-rise building will respond to wind and other external forces in the real world.

Bridge model in a wind tunnel for vibration measurements across the entire model.
Vibration analysis of a bridge model in a wind tunnel

Civil engineering: Structural analysis of bridges

Vibration analysis of bridges plays a crucial role in ensuring the stability and safety of these complex structures. The SMART series enables precise vibration measurements on bridge models in wind tunnels, providing valuable data on their behavior under wind loads. These insights help engineers improve structural integrity and identify potential vulnerabilities at an early stage.

Benefits for bridge development:

Ensuring safety under wind loads:

The SMART series captures vibrations in bridge structures caused by wind and other external influences. The precise results help engineers ensure that the bridge remains stable even under extreme wind conditions and that no dangerous vibrations occur.

Early detection of structural vulnerabilities:

Detailed vibration analysis allows potential vulnerabilities in the bridge structure to be identified at an early stage and selectively reinforced. This enhances safety and minimizes the risk of structural damage or failure.

Longer bridge service life:

A detailed vibration analysis makes it possible to identify areas that could suffer from material fatigue over time. Targeted modifications and reinforcements can extend the bridge's service life and increase its resistance to wind and other external influences.

Simulation of real-world wind conditions:

The SMART series enables non-contact analysis of bridge models in wind tunnels, simultaneously measuring their vibration behavior at numerous points. This data provides valuable insights into how the real bridge will perform in service when exposed to wind and other dynamic forces.

Vibration measurement in research, development and industry – Optomet offers the right solution for your requirements.

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