The reliability testing of fluid power components is critical for assuring long life of systems. The desired long life can only be assured by following a process that assures all of the field stresses will be included in any life testing. This usually begins by studying the main failure modes of each component and then running several meaningful life tests to demonstrate minimum life cycles under the appropriate environmental stresses. This process may be described by six activities. These form a good mechanical reliability process for testing and evaluating hydraulic components for almost any fluid power system. Such a multi-step process should be able to demonstrate that the fluid power components are capable of meeting all of the performance and life goals of the customer. More than demonstrating a minimum life may also be required for some applications. The equivalent of a 10-year field life could be demonstrated with this approach if desired.
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