Mobile Hydraulic Vibration Exciter

Product catalog summary

Specifications:

Test Cylinder: Nominal power of ±10 kN, stroke of 150 mm, pressure of 280 bar, displacement resolution of ±1 micron, and load cell nominal force of ±25 kN.
Hydraulic Power Unit: Flow rate of 20 l/min, pressure of 280 bar, and oil tank capacity of 100 liters.
Frame: Dimensions of 700 x 700 x 1800 mm, weight of 390 kg without ground plates, divisible into upper (180 kg) and lower parts (210 kg), vibrating mass of 400 kg, basic mass of 100 kg, and additional weights of 300 kg from 12 pieces of 25 kg plates. Optional ground plates reinforcement of 600 kg.

Performance:
The system can achieve frequencies up to 30 Hz with a maximum excitation energy of 10 kN. Key parameters include:

2 Hz: 4 kN force, 400 kg mass, 126 mm stroke
3 Hz: 6 kN force, 400 kg mass, 84 mm stroke
20 Hz: 10 kN force, 100 kg mass, 12 mm stroke
30 Hz: 10 kN force, 60 kg mass, 8 mm stroke

Control System and User Interface:
The digital control system is container-based with a laptop interface, implementing frequency and displacement amplitude control, measuring displacement and force amplitudes, and representing vibration diagrams. Control modes include force, position, and strain control, with smooth switchover possible during experiments. Online optimization of controller parameters is available. Signal generation includes sinus, square, trapezoidal, and triangular forms, with programmable test software for user-defined signals. Complex multi-stage tests with looping are supported.

Operating Interface:
Allows for a rotational angle of up to ±30°.

Contact Information:
WPM Werkstoffprüfsysteme Leipzig GmbH, Gewerbegebiet Wachau, Nordstraße 15, 04416 Markkleeberg, Germany. Phone: +49 (0) 3 42 97 / 14 35 - 0, Fax: +49 (0) 3 42 97 / 14 35 –10, Email: [email protected], Website: www.wpm-leipzig.de

Catalog excerpts

Mobile Dynamic Loading System (Hydraulic Vibration Exciter) Specifications: Test Cylinder • • • • • Nominal power, static ± 10 kN Nominal stroke 150 mm Nominal pressure 280 bar Displacement resolution ± 1 micron Load cell nominal force ±25 kN Hydraulic Power Unit • Nominal flow rate 20 l/min • Nominal pressure 280 bar • Capacity of oil tank 100 l Frame • Dimensions of the frame (divisible) 700 x 700 x 1800 mm • Weight frame without ground plates app. 390 kg • Divisible in: upper part app. 180 kg in, lower part app. 210 kg • Vibrating total mass max. 400 kg • Vibrating basic mass app. 100 kg • Additional weights 300 kg, assembled from 12 pieces mass square plates, each about 25 kg • Ground plates reinforcement (optional) app. 600 kg The capacity of the vibration exciter is designed that frequencies up to 30 Hz can be realized. A max. excitation enSeite 7 ergy of about 10 kN can be generated. The following parameters can be obtained: f [Hz] 2 3 20 30

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WPM Leipzig · Technical Information Control System and User Interface A digital control system for dynamic testing is used as a container version with a laptop. The control and evaluation software implements the specified frequency and displacement amplitude of the mass vibration, measures the generated displacement and force amplitudes and represents the vibration diagrams of the hydraulic piston of test cylinder. The control system can be used in the following control modes: • Force control • Position control • Strain control During the experiment, the smooth switchover between the control...

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Mobile Hydraulic Vibration Exciter

Mobile Hydraulic Vibration Exciter

Catalog excerpts

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