Xinyi Yang , Xiaodong Yu , Yulong Xu , Ruichun Dai , Wentao Jia , Junfeng Wang , Jianhua Jiao , Hui Jiang
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引用次数: 0
Abstract
High-end inertia friction welding (HIFW) equipment, as an industrial mother machine, can achieve large-scale and high-precision welding of superalloy rotors for aero-engines. HIFW with closed hydrostatic carrying system was developed, Navier-Stokes equations were derived, and transient friction characteristics of oil films were solved using viscosity-temperature relationship and dynamic mesh technology. Ultimately, the transient fluid-thermo-solid interaction (FTSI) deformation was simulated, and the topography of oil films was extracted. The analysis revealed that pressure and temperature gradients concentrating towards the radial oil sealing edge under the upsetting force, the influence of back pressure side on carrying system was neglected. The minimum gap was 0.0457 mm, and the deformation showed a trend of trumpet shape along the oil sealing edge of circumferential outer.
期刊介绍:
Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International.
Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.