vibrations generated via imbalance

Description:

• An indispensable part of machine design is the reduction of vibrations.
• For example, an elastic, vibration-isolating setup of the machine avoids disruptive vibrations being transferred to the surroundings.
• The TM 182unit can be used to study the issue of machine foundations and isolation from vibrations using a practical example.
• To do this, vibrations are deliberately produced on an elastically mounted machine.
• The transfer of these vibrations to the foundation is measured.
• It is then possible to test different adjustments using different springs and to study absorbing effects using vibration absorbers.
• The experimental setup consists of a machine, a foundation and a frame.
• A vibration generator serves as the machine, consisting of two independently driven imbalance sets.
• The imbalance sets are driven by servomotors so that any excitation forces and force directions can be generated.
• Alternatively, a piston compressor (TM 182.01) can be used to generate vibrations.
• The machine is mounted on a foundation by means of springs and dampers.
• The surroundings are represented by the foundation, on which the effectiveness of the vibration isolation is measured.
• The foundation is connected to the actual frame of the trainer via additional coil springs.
• This dual vibration isolation, together with the large weight of the foundation itself, guarantees a vibration-free operation in the laboratory even under unfavourable experimental conditions.
• A switch cabinet is attached to the frame, housing the control system, power supply and data acquisition.
• Acceleration sensors are used to measure deflection, velocity and acceleration of the vibrations at different points.
• Using these measured values, it is possible to calculate and display the operational vibration modes.
• A comprehensive software program is provided to control the operating conditions and to capture and analyse the data.
• The unit is connected to the PC via USB.

Technical Details:

Specification:

• display and study vibrations on machine foundations
• vibration generator excites vibrations by imbalance
• vibration-free laboratory operation thanks to additional vibration isolation of the foundation
• 2 brushless high-performance servomotors to drive the vibration generator
• eccentricity, rotational frequency, direction of rotation, adjustable phase position and frequency ratio
• variable arrangement of vibration absorbers
• vibration measurement via acceleration sensors
• inductive displacement sensor records the eccentricity of the imbalance masses
• GUNT software with control functions and data acquisition via USB under Windows 8.1, 10
• TM 182.01 piston compressor can be used as alternative “real” vibration generator

Technical Data:

• Drive motors:
  • speed: 6000min^-1
  • torque: approx. 3,40Nm
• “Machine” mounted on a plate:
  • mass: max. 26kg (incl. extra weights 4x 2kg)
  • imbalance: 2x 500cmg
  • imbalance force: 2x 500N (up to 3000min^-1)
• Foundation:
  • mass: max. 73kg (incl. extra weights 5x 9,4kg)
  • natural frequency: 2,66Hz
• Compression springs:
  • spring stiffness C: 2,44N/mm…139,53N/mm
  • transverse stiffness Cq: 0,30N/mm…90,0N/mm
• Measuring ranges
• acceleration: 490m/s²
• 230V, 50Hz, 1 phase
• 230V, 60Hz, 1 phase; 230V, 60Hz, 3 phases
• UL/CSA optional

Dimensions & Weight:

• L x W x H: 1140x800x1170mm
• Weight: approx. 311kg

Required for Operation:

PC with Windows

Learning Objectives/Experiments:

• familiarisation with vibration phenomena on machine foundations
• adjust the foundation for different excitation forces
• investigate vibration absorbers
• investigate the effect of additional damping
• compare metal springs and rubber springs
• measure and analyse vibrations
• determine operational vibration modes

Scope of Delivery:

• 1 trainer
• vibration generator
• 1 GUNTsoftware + USB cable
• 1 set of instructional material

Accessories:

• Optional:
• TM 182.01 Piston compressor for TM 182

Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.