Vibrations On Machine Foundations

Vibrations On Machine Foundations

Technical description of Vibrations On Machine Foundations

An indispensible element of machine design is targeted reduction of vibrations. An elastic, vibration insulating installation of the machine avoids the transmission of harmful vibrations to the surroundings. The can be used to investigate the problems of foundations and vibration isolation using a practical example. To do this, vibrations are generated and measured on a foundation. Springs are then used to try out different tunings and vibration absorbers are used to investigate absorption effects. This is installed on a foundation using springs and dampers. The foundation represents the surroundings and can be used to measure the effectiveness of the vibration isolation. Additional helical springs connect the foundation to the actual frame of the trainer. This double vibration isolation, combined with the high fixed weight of the frame, guarantees vibration-free laboratory operation, even under unfavourable experimental conditions.

Specification of Vibrations On Machine Foundations

• Representing and investigating vibrations on machine foundations
• Vibration generator generates vibrations by imbalance
• Vibration-free operation due to additional vibration isolation of foundation
• 2 brushless high power servo motors as the machine drive
• Eccentricity, rotation frequency, direction of rotation, phasing and frequency ratio adjustable
• Variable arrangement of vibration absorbers for absorption of vibrations
• Vibration measurement using acceleration sensors
• Inductive position sensor records the eccentricity of the imbalance masses
• Software with control functions and data acquisition via usb under windows vista or windows 7
• Piston compressor for use as alternative real vibration generator

 Technical data Vibrations On Machine Foundations

Drive motors

• Max. Speed: 6.000min-1
• Max. Torque: approx. 3,40nm
• Machine mounted on a plate
• Mass: max. 26kg (incl. Additional weights 4x 2kg)
• Max. Imbalance: 2x 5kgmm
• Max. Imbalance force: 2x 500n (up to 3.000min-1)

Foundation

• Mass: max. 73kg (inc. Additional weights 5x 9,4kg)
• Min. Natural frequency: 2,66hz
• Compression springs
• Spring constant c: 2,44n/mm...139,53n/mm
• Transverse rigidity cq: 0,30n/mm...90,0n/mm

Measuring range

• Acceleration: 50g 

Dimensions and weight Vibrations On Machine Foundations

• Lxwxh: 1.300x1.120x800mm
• Weight: approx. 150kg