Accessories

APS Accessories

A pair of DUAL-MODE Amplifier models feature voltage mode and current mode operation, designed specifically to enhance the performance of the shakers.

 

A variety of shaker accessories are offered to provide test application flexibility. These include Auxiliary Tables, Reaction Mass Assemblies, Vertical Mounting kits, an Over-Travel switch, and a High Temperature switch.

 

Please have a look on the following pages for further information.

 

  1. Featured Protection Functions

Product overview

APS Reaction Mass
to improve the performance of the shaker

APS Reaction Mass

Product Details:

  • Available for APS 113, APS 400, APS 420
  • to improve the performance of the shaker
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APS Steel Cable Kit
to use the shaker in Free Body Mode

APS Steel Cable Kit

Product Details:

  • Available for APS 113, APS 113-AB, APS 400, APS 420
  • This accessory for the APS 113 shaker provides four sets of suspension lines to use the shaker in Free Body Mode.
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APS Trunnion Base
to set up the shaker in any axis

APS Trunnion Base

Product Details:

  • Available for APS 420
  • Trunnion Base allows the APS 420 ELECTRO-SEIS® Shaker to be set up in any axis from vertical to horizontal
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APS Modal Stinger Kit
to apply force to a structure under test

APS Modal Stinger Kit

Product Details:

  • Available for: APS 113, APS 400 & APS 420
  • to apply force to a structure under test
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APS Handles & Bars
for transport & handling

APS Handles & Bars

Product Details:

  • Available for APS 113, APS 400, APS 420
  • for transport & handling
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APS Auxiliary Table Kits
for supplying transverse and axial base excitation

APS Auxiliary Table Kits

Product Details:

  • Available for APS 113, APS 400 & APS 420
  • Horizontal and vertical excitation
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  • The APS 0109 Zero Position Controller automatically controls the zero position of a vibration exciter irrespective of its load. It is essential to employ a position controller of type APS 0109 especially when working with an air-bearing vibration shaker without any integrated automatic load-compensation.
APS 0109
Zero Position Controller

APS 0109

  • The APS 0109 Zero Position Controller automatically controls the zero position of a vibration exciter irrespective of its load. It is essential to employ a position controller of type APS 0109 especially when working with an air-bearing vibration shaker without any integrated automatic load-compensation.

Product Details:

  • Zero Position Controller for APS Long-Stroke Vibration Exciter

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APS 4001
Horizontal Reaction Mass System

APS 4001

Product Details:

  • Horizontal excitation with 400 N rated force from 0.5 Hz ... 20 Hz
  • Up to 700 kg reaction mass attachable
  • Easy to disassemble and transport to a test location
  • Can be equipped with a reference force transducer (option)

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APS 4001 - Horizontal Reaction Mass System

Assume you have to identify lateral modal modes of a bridge or building that may be well damped in a frequency range down to 1 Hz or lower. Thus, a modal test by means of an inertial shaker would require passing the full rated exciter force horizontally into the building. An APS 400 long stroke shaker can be equipped with reaction masses for this purpose, but can develop its full force only down to 3.7 Hz.


Below this frequency the maximum force decreases with 12 dB/Octave due to the limited stroke. Increasing the reaction mass significantly can compensate this limitation. The APS 4001 - Horizontal Reaction Mass System provides a means of extending the rated force output for the APS 400 Shaker to frequencies as low as 0.5 Hz.

 

For this purpose, the system can be equipped with up to 700 kg moving mass. In spite of its high weight, the APS 4001 can be easily dismantled into subassemblies that can be carried by man. Thus, it is still a mobile solution.

 

Advantages

  1. Horizontal excitation with 400 N rated force from 0.5 Hz ... 20 Hz
  2. Up to 700 kg reaction mass attachable › Easy to disassemble and transport to a test location
  3. Can be equipped with a reference force transducer (option)

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Based on the 45 years of experience of APS Dynamics, we offer mobile shakers that exhibit their best performance in the low frequency range. Typical applications are modal testing of buildings, bridges and other large structures. Combined with SPEKTRA vibration controllers, complete systems are also available.