The UD series was developed to meet the requirements of dynamic applications even in cyclic applications with a high number of cycles and a short stroke. The actuators are designed to operate either alone on structures or on production lines for quality control. Not just simple electrodynamic actuators, but true electrical machines for any type of application where high performance is required.
Dynamic mechanical analysis (DMA) is a widely used technique to characterise the properties of a material as a function of temperature, time, frequency, stress, atmosphere or a combination of these parameters.
By applying a small deformation to a sample in a cyclic manner, it is possible to study the material’s response to stress, temperature, frequency and other values. The sample can be subjected to controlled stress or controlled strain. In DMA, the viscoelastic property of the material is studied by applying a sinusoidal force (stress σ) and measuring the resulting displacement. For a perfectly elastic solid, the resulting strain and stress will be perfectly in phase.
For a purely viscous fluid, there will be a 90-degree phase shift of the deformation to the stress. Viscoelastic
Viscoelastic polymers have the intermediate characteristics for which some phase shifting will occur during DMA tests.
Typical challenges in DMA testing are:
UHFTS ultra-high frequency machine
| UHFTS Specs | UHFTS-4 | UHFTS-10 |
|---|---|---|
| Max. Peak force | 4.56 kN | 11.40 kN |
| Max. Dynamic force (Sinusoidal fatigue) | 1.84 kN | 4.60 kN |
| Max. Static force | 1.32 kN | 3.30 kN |
| Max. Test speed@Peak force | 5 m/s | 5 m/s |
| Max. Test frequency | 1000 Hz | 1000 Hz |
| Standard stroke | 105 mm | 105 mm |
| Cooling | Air | Air |
| Working temperature | 5-30 °C | 5-30 °C |
| Facility requirement | 3PH 400V | 3PH 400V |
No maintenance
High performance
High cost-efficiency
Increased security
