Web10 mrt. 2024 · Pipeline systems in aircraft are subjected to both hydraulic pump pressure fluctuations and base excitation from the engine. This can cause fatigue failures due to … WebThe concept of modal testing is adapted accordingly and demonstrated for a straight pipeline, the same pipeline with a single side branch, and a pipeline system with three …
Modal testing of hydraulic pipeline systems Request PDF
Web5 aug. 2013 · This paper is motivated by the demand for a theory on which the experimental modal analysis of hydraulic pipelines can be based. For mechanical systems, … Web9 jan. 2024 · The hydraulic pipeline is the key structure to provide power transmission for the aircraft, and ensuring that the pipeline system does not cause resonance damage under external excitation is important to ensuring safety. good evening friday greetings
Modal testing of hydraulic pipeline systems - NASA/ADS
Web3 dec. 2024 · The concept of modal testing is adapted accordingly and demonstrated for a straight pipeline, the same pipeline with a single side branch, and a pipeline system … Web27 sep. 2024 · There are different methods of performing hydrostatic testing. All of the methods involve purging the system contents and filling the system with water to create a static pressure at or above its standard operating pressure. Then the system is inspected for visible and/or measurable leaks or deformation [ 3 ]. Web28 aug. 2024 · Aircraft hydraulic pipes are always configured in curved rather than straight lines for the limited aircraft space. Therefore, the influence of curvature and friction of the pipeline should be accounted for in the vibration analysis. A mathematical model is developed to predict the vibration of the selected aircraft hydraulic-pipeline section. healthrider h55t treadmill specs