3D打印零件和新材料有助于勞斯萊斯發動機測試成功
該技術演示引擎正在證明技術和一個新的核心勞斯萊斯超級風扇發動機設計，將在2025年推出。
Advance3，包括約20，000個部件，已達到100多個小時的測試。初步結果顯示，由印刷技術制造的零件，即添加劑層制造(通常稱為3D打印)和陶瓷基復合材料制成的零件具有良好的性能。
ALM允許工程師為零件創造新的設計，并使這些部件更快地被制造和重新設計。CMCs在高溫下持續時間更長，比金屬替代品更輕。
工程師們從去年11月開始的測試中下載了數以百萬計的數據點，并在7月份實現了發動機的滿負荷運轉。Advance3在提供智能引擎、勞斯萊斯對未來的愿景方面發揮著重要作用，因為它建立在先進技術和數字能力的基礎上，為客戶提供了重要的利益。
民用航空航天演示項目總工程師艾什·歐文(Ash Owen)表示：“迄今為止，測試是完全無縫的，當你意識到這是一個包含一系列新技術和全新核心架構的引擎時，這是一項杰出的成就。我們現在已經完成了測試和分析結果的階段。我們喜歡從CMC和ALM部件性能中看到的。“
CMC組件能夠承受較高的工作溫度，所需的冷卻空氣要少得多，同時還能顯著減輕重量，所有這些都有助于提高效率。
ALM允許具有多個部件的更復雜的發動機元件在更少的部件中制造，甚至作為一個完整的部件來制造，從而提高了準備時間，并允許在開發階段快速、輕松地重新設計組件。勞斯萊斯在這一過程中一直處于創新的前沿，在2015年測試的特倫特XWB-97發動機內駕駛了大型3D打印的航空航天結構。ALM還提高了生產效率，降低了組件的重量，同時提供了制造設計和形狀的能力，而這些設計和形狀是傳統方法不可能實現的。
Advance3演示器正在測試一種新的發動機核心，它將提供佳的燃油效率和低排放。羅爾斯-羅伊斯未來的技術戰略的一個關鍵要素是為超級風扇發動機設計開發先進核心，該核心將于2025年推出，與代特倫特發動機相比，它將使燃油效率提高25%。
在演示器上，新的核心運行在Trent XWB風扇系統和Trent 1000低壓渦輪之間，其壓縮機系統有助于提供高達70：1的超風扇總壓力比。
Advance3演示方案是由航空航天技術研究所(ATI)與Innovate UK和CleanSky 2聯合資助的。
原文如下：
原文如下：
The technology demonstrator engine is proving both technology and a new core for Rolls-Royce UltraFan engine design which will be available from 2025.
3D printed parts and new materials help Rolls-Royce to engine test success
Advance3, incorporating around 20,000 parts in total, has achieved more than 100 hours on test. Initial results are showing good performance from parts made by a printing technique known as additive layer manufacturing (more commonly known as 3D printing) and also made from ceramic matrix composites.
ALM allows engineers to create new designs for parts, and for those parts to be made and redesigned more quickly. CMCs last longer in high temperatures and are lighter than metal alternatives.
Engineers have downloaded millions of data points from the tests, which began last November and saw the engine achieve full power in July. Advance3 plays an important part in delivering the IntelligentEngine, Rolls-Royce’s vision for the future, as it builds on pioneering technology and digital capabilities to deliver important benefits for customers.
Ash Owen, Rolls-Royce, Chief Engineer, Civil Aerospace Demonstrator Programmes, said: “Testing so far has been completely seamless, which is an outstanding achievement when you realise that this is an engine incorporating a range of new technologies as well as a brand new core architecture. We have completed our first phase of testing and analysing the results right now. We like what we see from the CMC and ALM parts performance. ”
CMC components are able to withstand higher operating temperatures, and require much less cooling air, while delivering a significant weight reduction, all contributing to improved efficiency.
ALM allows more complex engine elements with multiple pieces to be manufactured in fewer parts or even as a single complete part, improving lead times and allowing components to be redesigned quickly and easily during the development phase. Rolls-Royce has been at the forefront of innovation with this process, flying a large 3-D printed aerospace structure within the Trent XWB-97 engine that was tested in 2015. ALM also increases production efficiency and reduces component weight while providing the ability to manufacture designs and shapes that would not be possible using conventional methods.
The Advance3 demonstrator is testing a new engine core that will deliver optimum fuel efficiency and low emissions. It is a key element in Rolls-Royce’s future technology strategy to develop the Advance core for the UltraFan engine design that will be available from 2025 and will offer a 25 per cent improvement in fuel efficiency compared with a first generation Trent engine.
On the demonstrator, the new core operates between a Trent XWB fan system and a Trent 1000 low pressure turbine, and its compressor system helps to deliver an UltraFan overall pressure ratio of up to 70:1.
The Advance3 demonstrator programme is co-funded through the Aerospace Technology Institute (ATI) in association with Innovate UK and Clean Sky 2.
