Essential Factors to Consider When Selecting a Vibration Shaker System

To ensure accurate, repeatable, and standard-compliant vibration testing, it is essential to clearly define all test conditions and technical requirements before selecting a vibration shaker system. A well-matched system not only improves test reliability but also avoids under- or over-specification of equipment.

1. Define Applicable Test Standards

   The first step is to confirm the applicable test standards, such as IEC, ISO, or automotive standards. Different standards specify different vibration profiles, frequency ranges, and performance limits, which directly influence the selection of the vibration shaker and controller.

2. Identify Test Types and Vibration Profiles

   The required test types should be clearly specified, including sine vibration, random vibration, shock testing, or combined test modes. Based on these profiles, key parameters such as frequency range, acceleration, velocity, and displacement must be determined to ensure the shaker can fully meet test requirements.

3. Evaluate Test Specimen Characteristics

   The dimensions, mass, and shape of the test specimen play a critical role in system selection. These factors directly affect the required force rating, table size, and load capacity of the vibration shaker. Proper consideration at this stage helps ensure stable operation and accurate test results.

4. Fixture Design and Resonance Considerations

   Fixture design is an integral part of the vibration test system. The size, mass, stiffness, and resonance points of the fixture must be evaluated to minimize unwanted resonance and ensure effective transmission of vibration energy to the test specimen.

5. Determine Vibration Direction and Configuration

   Depending on the test requirements, vibration may be applied in vertical, horizontal, dual-axis, or tri-axis configurations. The vibration shaker system should be selected accordingly, including the use of slip tables or multi-axis solutions when required.

6. Consider Combined Environmental Testing

   In many applications, vibration testing must be performed in combination with environmental conditions such as temperature, humidity, altitude (air pressure), or light exposure. In such cases, the vibration shaker system should be compatible with environmental chambers and combined test setups.

7. Control, Measurement, and Accuracy Requirements

   The selection process should also consider control points, sensor locations, and allowable control tolerances. A reliable vibration controller and data acquisition system are essential to ensure precise control, monitoring, and repeatability of test conditions.

8. Customized Solutions for Reliable Testing

   By clearly defining all test conditions and requirements, a vibration shaker system can be customized to deliver reliable, efficient, and standard-compliant testing solutions. A properly selected system ensures long-term stability, accurate results, and optimal return on investment.