What is Vibration Testing?
STERIS has a wide range of vibration testing capabilities. With three different vibration platforms, we have the ability to run vibration profiles requiring extremely accurate and low-level vibrations, right up to vibrating large, heavy products and product packaging.
We have the capability to superimpose vibration with temperature, and also includes a slip table enabling vibration in all three axes, while allowing the product to remain upright. Our processes and tests are governed by our ISO17025 accreditation.
Testing performed with our vibration platforms conforms to international standards and/or industry-specific standards which pertain to automotive, medical, aerospace, and military standards and/or general IEC and EN standards.
Random and Sine Test Methods
Random and sine test methods are often used for vibration testing. The two test methods are not equivalent and will not necessarily produce the same results.
Random vibration is the better simulation of actual transport vibration environments and is the preferred method for qualification or validation. It will stimulate and accelerate mechanical fatigue by exposing weaknesses, deformities, cracks, and other imperfections in the mechanical properties of a product. It also exposes poor connectivity on connectors and overall poor mechanical layout.
The sinusoidal, or sine, vibration method is often used in conjunction with the random method to determine and observe resonances. It will stimulate and accelerate unwanted resonances, which, if not detected and fixed, will lead to early life failure.
At STERIS, we have an experienced team of engineers with a firm understanding of product test, validation, and test design. Vibration testing can be quite involved, and many technical aspects have to be considered when designing a product test strategy. Often, custom fixturing may be required, and their design is critical to the effectiveness of the testing. Fixture design and fabrication is just an example of the type of value-added services we offer at STERIS.
ISO 11607 – Packaging for Terminally Sterilized Medical Devices
ASTM D999 – Standard Test Methods for Vibration Testing of Shipping Containers.
ASTM D4728 – Standard Test Method for Random Vibration Testing of Shipping Containers
EN60068-2-6 – Sinusoidal (Sine) Vibration
EN60068-2-64 – Random Vibration