THEMIS - THickness Evaluation and Measurement In Situ

劳斯莱斯是安全可靠动力的代名词，生产世界上最高效的航空航天燃气轮机发动机。为了保持安全和效率，劳斯莱斯在其整个生命周期内对其发动机进行例行检查和维修。随着发动机的磨损，最关键的部件可能会显示出恶化的迹象，这可能会导致发动机在下一次预定的大修之前停止使用。为了应对这些挑战，并最大化发动机可用性和机翼上的时间，劳斯莱斯继续在现场检测和维修技术的开发方面处于领先地位。这样的工具可以通过发动机侧面的一系列进入孔(或“管道镜端口”)展开，并导航到感兴趣的区域。在那里，一系列的检查和维护任务可以由高技能的机械师执行，这样发动机就可以安全地恢复服务。由于几何尺寸的限制，以及工具所需的灵活性和能力，这种方法类似于锁孔手术。THEMIS(厚度评估和原位测量)旨在增加劳斯莱斯的原位检测技术组合。特别是，目标是开发一种在发动机仍然完好无损和安装的情况下测量部件和涂层厚度的工艺。这将允许更深入地了解资产的完整性，从而允许机械师确定是否需要进一步维护或发动机是否可以安全运行。Themis是一个极具挑战性的项目，但将有助于开发一种对劳斯莱斯售后服务团队具有重大价值的技术。

Rolls-Royce are synonymous with safe and reliable power, and produce the world's most efficient aerospace gas turbine engine. To maintain safety and efficiency, Rolls-Royce perform routine inspection and servicing of their engines throughout its lifecycle. As engines wear, the most critical components may show signs of deterioration that may lead the engine to be removed from service ahead of its next scheduled overhaul. To address these challenges, and to maximise engine availability and time on-wing, Rolls-Royce continues to lead the way in the development of in situ inspection and repair techniques. Such tools can be deployed via a range of access holes (or "borescope ports") across the side of the engine, and navigated to the area of interest. Once there, a range of inspection and maintenance tasks can be performed by a highly-skilled mechanic, such that the engine can be safely returned into service. Due to the geometrical restrictions, and the required dexterity and capability of the tools, this approach is analogous to keyhole surgery.THEMIS (THickness Evaluation and Measurement In Situ) aims to increase Rolls-Royce's portfolio of in situ inspection techniques. In particular, the aim is to develop a process that can measure the thickness of components and coatings when the engine is still intact and installed. This will allow an even more in-depth understanding of the integrity of the asset, and thus allow the mechanic to determine whether further maintenance is required or if the engine is safe to fly-on. THEMIS is highly challenging project, but would help to develop a technique that would have a significant value to the Rolls-Royce Aftermarket Services team.