JetMedBlue AB is an engineering company specializing in providing high end technical solutions and engineering consultancy in the product development and research & technology areas. One of main fields of expertise of JetMedBlue AB is a Structural Development, Calculation and Analysis of Composite and Metallic Structures in the Aircraft Industry. The experience and background has been gathered by its personnel throughout years of working at or cooperating with world's biggest aircrafts producers and jet engines manufacturers.

COMPOSITES
The company has a solid background and proficiency in structural performance calculation (strength, stiffness, fatigue life, etc.) of composite structures and their attachments:

Boeing 747-8. Nacelle with Thrust Reverser exposed

• carbon fiber laminates and sandwich structures
• mould formed carbon fiber laminates (RTM)
• filament winded carbon fiber laminates
• riveted and bolted joints
• Attachments - both composite and metallic - i.e. fittings, brackets, doors and door panels, hinges, latches, bridging brackets, etc.

The composite experience includes a composites' structural design - definition and optimization of composite lay-up and stack-up sequences.
The composite background and experience was gathered by participating in few development programs, performed for the world's biggest aircraft and jet engines manufacturers:
Product Development

• COMAC ARJ 21 / General Electric CF34-10A Engine - Engine Nacelle
  • Fan Cowl and Translating Cowl/Thrust Reverser
• BOEING 747-8 / General Electric GEnx 2B Engine - Thrust Reverser

Technology Development

• VOLVO AERO CORP. - Aft Fan Case (AFC) and By-Pass structures for mid-range airplane's jet engine (in cooperation with General Electric)

Concept Development

• DREAM (EU PROJECT) - radical design of By-Pass structure (DREAM = valiDation of Radical Engine Architecture systeMs)

METALLIC STRUCTURES
Strength, Fatigue & Fracture estimation of metallic structures is a great field of expertise of JetMedBlue AB. The proficiency is represented in the following capabilities of detailed evaluation, including FE methods and hand calculations:

Boeing 787 Dreamliner

• Strength performance - normal and ultimate working conditions
• Stiffness and vibrations
• LCF and HCF life, damage tolerance (crack propagation) and continuous operation estimation
• Mount, Lug and Clevis analyses and verifications
• Bolted joints - detailed calculations
• Failure cases

The expertise was gathered by participation in several concept and product development projects:

• General Electric GEnx 1B & GEnx 2B engine (e.g. for Boeing 787 Dreamliner) - Fan Hub Frame (FHF) and Turbine Rear Frame (TRF)*
• Pratt&Whitney PW1000 30K (PW1100) (for Airbus A320neo airplane) - Intermediate Case (IMC)* and Firewall

*FHF and IMC are front, main load carrying jet engine structures, transferring engine loads through mount systems to pylons and then to airplane wings. TRF structure is the corresponding rear load carrying jet engine structure. The structures are mainly made of titanium, aluminum alloys, or inconel superalloy. The restricted structural requirements and calculation methods are applicable to them.

CERTIFICATION
The company’s personnel is widely experienced in the certification procedures – FAR 33 (jet engines) and FAR 25 (airplane including mounts) regulations and requirements, as well as in the preparation and issuing of certification reports – including further representation of projects in front of FAA authorities.
The ongoing product development projects are therefore always run according to certification requirements with minimum additional efforts for future certification.

PRODUCT DEVELOPMENT PROCESS
Product Support: Apart from the above the company’s personnel is also widely experienced in a product support. This enables to cover a non-conformance evaluation (NCR/MRB) as well as a redesign and product’s new applications using combined FE and hand calculation methods - often particularly defined for unique product support solutions.
Method Development: Method development for evaluation of both composite and metallic structure is always widely covered during the daily work. One of the examples is a Six Sigma LEAN process implementation for a composite structures verification, with significant achievement of method optimization and shortening of the analysis process.
The broad experience and solid mechanics expertise allow JetMedBlue AB to cover all of the project phases – from concept development, through technology and method development, product development and certification, up to the product support phase during plane or engine in service. The wide background and proficiency enables to control and run the development activities efficiently, with high accuracy, minimization of redesign loops and ensuring the reasonable costs.

If you are interested in discussing potentials in engineering support provided by JetMedBlue AB please contact us via methods provided in contact us section contact us