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Case Study

Multi-Axis Systems

6 degree of freedom vibration shaker system (6 DOF)

TTS-series (6 Degree of Freedom Systems)

At least 6 vibration shakers are combined for 6 degrees of free motion with integrated control.
In addition to X, Y, and Z axis motion, rotational motion, roll, pitch and yaw are also possible with the use of spherical bearings.
Using electrodynamic vibration generators, IMV systems can reproduce waveforms in a wide frequency range with a high degree of accuracy.
System maintenance is easy. Systems comprise at least six vibration generators that act along orthogonal axes to generate the roll, pitch and yaw motion. A spherical bearing is used to allow the rotational motion. By using electrodynamic vibration generators the system can operate over a wide frequency range with a high degree of accuracy. System maintenance is straightforward.

■Ride comfort evaluation system

The addition of rotational motion to a three-axis system enables 6-degree-of-freedom testing, as is required for vehicle seat evaluation, for example.

Excitation direction X axis Y axis Z axis
Rated Force (lbf) 877 1,754 3,597
Maximum displacement (inp-p) 5.9 4.0 4.0
Frequency Range (Hz) 1-100
Table Size (in) 71×71
Vibration Generator 1 2 4

(Per 1 system)

■Large-scale 6 DOF vibration shaker system

A total of 10 vibration generators (6 vertical and 4 horizontal) and a large size 157- by 138-inch table allow simultaneous 6 DOF vibration testing. This versatile platform is ideal for testing large items such as railway carriage components.

Excitation direction X axis Y axis Z axis
Rated Force (lbf) 17,985 10,791 21,582
Maximum displacement (inp-p) 2.0
Frequency Range (Hz) 2-150
Table Size (in) 157×138
Vibration Generator 2 2 6

(Per 1 system)

Large-scale 6 DOF vibration shaker system
■6 DOF simultaneous squeak and rattle test system for vehicle seats

Air-cooled vibration shaker system for the evaluation of squeak and rattle noise from instrument panels or other car assemblies.

Excitation direction X axis Y axis Z axis
Rated Force (lbf) 360 360 719
Maximum displacement (inp-p) 1.2
Frequency Range (Hz) 5-100
Table Size (in) 59×138
Vibration Generator 2 2 4

(Per 1 system)