demonstration of basic fundamentals of mechanical vibration theory

Description:

• Forced vibrations occur in a variety of ways in engineering.
• While they are desirable in vibrating screens or vibrating conveyors, they are often unwanted in engines or other rotating machines.
• The TM 155experimental unit clearly demonstrates the fundamentals needed to deal with free and forced vibrations.
• The differences between the two main types of excitations for forced vibrations can be shown on a simple vibration model.
• The central element of the experimental unit is a sturdy aluminium profile frame to which the different experimental setups are attached.
• A bar-type oscillator is used as the vibration system. This offers easy and flexible configuration.
• The spring, damper and vibration exciter can be mounted in any position.
• An imbalance exciter and a displacement exciter are available for spring base-point excitation.
• The excitation frequency is set and displayed on a control unit.
• An oil hydraulic damper allows damped vibrations with adjustable damping level.
• A mechanical drum recorder offers the option of recording the vibrations.
• The measured values can be displayed and analysed on a PC using the optional TM 155.20unit for data acquisition.
• A demonstration unit for torsional vibrations (TM 150.02) is available as an accessory.

Technical Details:

Specification:

• fundamentals of mechanical vibration theory; free, damped and forced vibrations
• bar-type oscillator
• 3 coil springs
• imbalance exciter with DC motor
• displacement exciter with DC motor
• electronic control unit with digital display, adjustable excitation frequency
• damper with oil fill
• electrically driven drum recorder
• amplitude meter with electrical contact for triggering devices
• storage system for parts

Technical Data:

• Bar-type oscillator: L x W x H: 700x25x12mm, 1,6kg
• Coil springs:
  • 0,75N/mm
  • 1,5N/mm
  • 3,0N/mm
• Exciter frequency: 0…50Hz, electronically controlled
• Imbalance of the imbalance exciter: 0…1000mmg Stroke of the displacement exciter: 20mm
• Damper constant: 5…15Ns/m, oil-filled
• Mechanical drum recorder:
  • feed: 20mm/s
  • paper width: 100mm
• 230V, 50Hz, 1 phase
• 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase
• UL/CSA optional

Dimensions & Weight:

• L x W x H: 1000x420x900mm
• Frame opening W x H: 870x650mm
• Weight: approx. 52kg
• Storage system:
• L x W x H: 1170x480x237mm
• Weight: approx. 12kg

Learning Objections/Experiments:

• free vibrations
• damped vibrations
• inertia force and displacement excitation
• forced vibrations
• resonance
• amplitude response and phase response

Scope of Delivery:

• 1 experimental unit
• 1 bar-type oscillator
• 3 coil springs
• 1 imbalance exciter
• 1 displacement exciter
• 1 control unit for imbalance exciter
• 1 damper
• 1 amplitude meter
• 1 drum recorder
• 1 storage system with foam inlay
• 1 set of instructional material

Features:

• demonstration of basic fundamentals of mechanical vibration theory
• damping and resonance in forced vibrations
• two different principles of vibrational excitation

Accessories:

• Optional:

–      TM 155.20 System for data acquisition

–      TM 150.02 Free and damped torsional vibrations

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