2.2.3 PRODUCT VIBRATION SURVIVABILI

2.2.3 PRODUCT VIBRATION SURVIVABILITYBare Product Vibration Testing is performed to identify the resonant frequencies of the product and/or its critical components. ASTM D3580 describes Standard Test Methods for Vibration Testing of Products. The most common method to determine a product resonance is to perform a sine sweep test, in which the product is coupled to the vibration table and given a low level sinusoidal input over a wide frequency range. Critical components are measured with accelerometers to gauge responses to the inputs generated during the test. The ratio of response vs. input is plotted as a transmissibility plot. Peaks in the transmissibility plot define the natural frequency of the measured location. ASTM D3580 also describes alternative methods using random vibration which are acceptable. Data from field data recorders may also be used to identify product resonances – in these cases, please contact Applied Materials Packaging Engineering to verify the feasibility of using such data.Product resonances and amplification levels must be provided to Applied Materials Packaging Engineering team prior to package design and should meet the following requirements.