Vibrations on machine foundations (TM 182)

Vibrations on machine foundations (TM 182)

vibrations generated via imbalance

CodeTM182

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.