Oberst beam
Because damping materials efficiency depends strongly on temperature and frequency, Mecanum developed its new Oberst Beam test bench with an optional climate chamber, allowing to measure the damping properties at different temperatures and on a wide frequency range.
Why choose Mecanum’s Oberst Beam?
Follows ASTM E756-05, ISO 6721 and SAE J1637 standards
Choosing an Oberst beam compliant with ISO and ASTM standards ensures accuracy, reliability, and global acceptance. It offers precise measurements, compatibility with other equipment, regulatory compliance, and long-term value, making it a prudent choice for industries and research where damping loss factor, Young’s modulus or shear modulus are crucial.
Made for automotive industry and building construction
Damping stands out as a highly effective solution for minimizing noise and vibrations, finding widespread application across industries, particularly in transportation. It plays a crucial role in reducing structural noise and addressing issues like squeaks and rattles in vehicles.
By damping vibrations at resonant frequencies, it significantly enhances the longevity of structures. In building construction, damping is instrumental in improving panel insulation and reducing noise from plumbing and ventilation systems.
Masters temperature and humidity with climatic chamber
Our Oberst Beam test bench facilitates precise measurements across various temperature and frequency spectrums, empowering engineers with comprehensive data to evaluate the compatibility of damping solutions with their intended applications.
Damping materials typically exhibit viscoelastic behavior, meaning they possess both elastic (spring-like) and viscous (fluid-like) properties. These characteristics make them responsive to changes in temperature and frequency. Consequently, engineers must carefully select the appropriate material to suit specific application requirements.
Improves viscoelastic properties representation
Viscoelastic mechanical properties are highly dependent on both temperature and frequency. Traditionally, this complex behavior is modeled using the Williams-Landel-Ferry (WLF) equations and represented graphically by nomograms. However, nomograms can be difficult to interpret due to their complexity.
A more intuitive approach is to visualize these properties with 3D graphs. By plotting temperature, frequency, and key mechanical properties Young’s modulus or shear modulus and damping on a 3D surface, we get an immediate, comprehensive view of how materials behave under varying conditions.
Oberst Beam techs specs
Dimensions
499 (L) x 290 (W) x 175 (H) mm
19.6 (L) x 11.4 (W) x 6.9 (H) inches
Beam length range: 135 to 315 mm
Maximum sample height: 30 mm
Measuring range
Frequency: 5 to 5000 Hz
Operating temperature: -40°C to 130°C
Damping and structural loss factor, Young’s and shear modulus: no limitations, depends on beam characteristics
What’s in the box
Stainless steel frame test bench
Acquisition system with integrated amplifier
Set of starting beams (5 aluminum beams, 5 steel beams and 10 pairs of roots)
Magnetic exciter
Magnetic position sensor
Measurement software
Measured properties
Young’s modulus (E) or shear modulus (G)
Damping loss factor (η)
Accessories
Accessories for damping materials
Climatic chamber
Control temperature and humidity for a better damping analysis.
Beam sets
Buy extra steel or aluminum beams (with steel roots).
