When performing experimental modal analysis, the choice of excitation function and system can make the difference between a good measurement and a poor one. For many modal test applications, an electrodynamic shaker system is best suited for creating an appropriate input forcing function. Distributing adequate input force energy across the test structure and obtaining accurate and reliable input force measurements is critical for successful modal testing. This often requires a shaker that is highly portable, rugged and easy to setup in order to facilitate the best exciter location (relative to the test structure) while minimizing any unwanted interaction between the exciter and test structure.
The Modal Shop 2100E11 Modal Shaker, a lightweight electrodynamic modal exciter, is capable of providing 100 lbf (440 N) of peak force excitation in a small footprint weighing just 33 pounds (15 kg). With a 1” stroke and useful frequency range beyond 5400 Hz, the 2100E11 is suitable for structural testing and experimental modal analysis applications, including single and multiple inputs (SIMO and MIMO) using random, burst random, sine dwell or chirp excitation signals.
Through-hole armature with chuck and collet attachment provides simple setup with modal stingers.
Lightweight and portable – weighing just 33 lbs (15 kg).
Trunnion base provides flexibility when choosing best exciter location(s).
1” stroke and broad frequency range supply adequate input energy for most modal test applications.
Forced air cooling sufficient to meet full shaker performance (100 lbf pk) specifications.