Infrastructure

• System for structure behaviour analysis during fatigue tests (made by Walter & Bai – Switzerland)

00DSC 5477
Technical specifications:
  • Actuator (triggering element) of 100kN which operates along the two columns that form the frame can be tilted at different angles for which the piston stroke is of 100 mm (the maximum amplitude is of  50 mm) and the maximum dynamic frequency is 35 Hz;
  • Actuator of 63 kN which operates horizontally and for which the piston stroke is of 100 mm (the maximum amplitude is of  50 mm) the maximum dynamic frequency is 35 Hz;
  • DION 7 software for static and dynamic tests, multi – channel for defining cyclic load testing
  • - Different types of cycles can be defined by using DION 7: sinusoidal, triangular or rectangular loads, etc. The following can be defined for each cycle: peak to peak amplitude (for example,  5 mm, max.  50 mm) either in motion or the highest value; frequency (maximum 35 Hz) , number of cycles, etc.
The following research services can be conducted with this equipment:
  • System for structure fatigue testing is used for dynamic loading such as cyclic fatigue loads. Dynamic testing can be conducted on any structure or mechanical system;
  • The equipment can be used for testing test tubes made of isotropic materials, wood or advanced materials (composite materials and sandwich structures). Test tubes can be tested by applying cyclic loads as part of bend testing. He equipment can also be used for determining Wohler curves in fatigue cyclic loading.

The equipment is used for:

  • dynamic tests such as cyclic fatigue stresses; dynamic tests can be performed on any structure or mechanical system;
  • testing of specimens made of isotropic materials, wood or advanced materials (composite materials, sandwich structures).

The specimens may be required by applying cyclic loads in bending tests. It can be used to determine Wohler curves in cyclic fatigue loads.

• Integrated system for vibroacoustic analysis (made by LMS GMBH)

This system consists of the following pieces of equipment:
  • Data acquisition mobile system for LMS SCADAS vibrations with 4 slots and 8 channels which includes: LMS SCADAS Recorder 5-slot mainframe-SCR05 – 1 item; LMS SCADAS Mobile enhanced 8- channels V/ICP/TEDS input module-SCM-V8-E – 4 items; LMS SCADAS Recorder 16GB compact flash card-SCR-CF16G – 1 item; LMS SCADAS Recorder external compact flash reader-SCR-CFR – 1 item; LMS SCADAS Recorder PDA smart control unit-SCR-PDA – 1 item, and LMS SCADAS Mobile master/slave option-SCM-MS – 1 item;
  • Data acquisition mobile system - LMS Scadas with 2 slots x 8 channels for vibrations and 2 slots x 8 channels for tensometry which includes: LMS SCADAS Recorder 5-slot mainframe-SCR05 – 1 item; LMS SCADAS Mobile enhanced 8-canale V/ICP/TEDS input module-SCM-V8-E – 2 items; LMS SCADAS Mobile enhanced 8-canale V/ICP/Bridge input module-SCM-VB8-E – 2 items; LMS SCADAS Mobile master/slave option-SCM-MS – 1 item; one LMS SCADAS Recorder 16GB compact flash card-SCR-CF16G – 1 item; LMS SCADAS Recorder external compact flash reader-SCR-CFR – 1 item, and LMS SCADAS Recorder PDA smart control unit-SCR-PDA – 1 item;
  • One PCB -086C03 impact hammer (1 item) that can be used for applying impact loading when analysing mechanical structure vibrations;
  • PCB -339A31/NC accelerometers (8 items), PCB 394C06 accelerometer (1 item), and PCB -T333B30 accelerometers (15 items) that are used for the acquisition of acceleration signals in different points of the dynamically loaded mechanical structure (vibrations and impact);
  • GRAS microphone with preamplifier with TEDS-46AE (2 items), used for recording sound when testing acoustic insulation panels made of sandwich or composite materials;
  • 42AB GRAS calibrator for microphones (1 item);
  • Software LMS Test Lab software for vibrations which is used for recording, processing and analyzing the data gathered by means of acquisition boards from accelerometers, force transformer and tensometric marks;
  • Software LMS Test Lab software for analysing sustainability data.

The equipment is used for:

  • Vibration analysis of mechanical structures, frequency determination;
  • Deformation measurement in different points of the structures using the tensometric method;
  • Modal analysis of mechanical systems; equipment and machine vibration diagnostic;
  • Acoustic analysis and identification of noise sources and spreading.

 

• MX840 universal amplifier (data acquisition board) with 8 channels for tensometry

The MX840 universal amplifier (data acquisition board) with 8 channels for tensometry has the following technical characteristics: - frequency 19.2 kHz; - adapters for tensometric marks in and bridge; - Catman Easy software for data processing, possibility to create virtual channels for performing in real time the mathematical calculations for rosette type tensometric marks.

The equipment is used to measure deformations at different points of the structure using the tensometric method.

• Acoustic tube manufactured by Brüel & Kjær

The acoustic tube manufactured by Brüel & Kjær has the following technical characteristics: impedance tube type 4206; type 7758 software for data processing and acquisition in case of material testing.

The equipment is used to determine the acoustic characteristics of materials (steel, aluminum, wood, fiber-reinforced composites, foams, sandwich materials, lignocellulosic composites, etc.).

• OV301 oven for heat treatment of composite materials with integrated vacuum connections

The OV301 oven is used for the heat treatment and post-treatment of composite laminates, prepregs and structures made by molding.

• KD2 Pro thermal property analyser for liquids and solids

The equipment is used to determine the following properties: thermal conductivity; specific heat; thermal diffusion; thermal resistivity. The maximum heat treatment temperature is 200° C.

• DV-II + PRO digital viscometer

The equipment is used to measure fluid viscosity, shear stress.

• SIGMA 700 tensiometer

The equipment is used to determine the following characteristics: surface voltage and at the interface; hygroscopicity of powders; dynamic contact angles; critical micellar concentration; density; sedimentation.