FEA & CFD based-Design Optimization of VTOL, e-VTOL and UAM - Urban Air Mobility
The VTOL, e-VTOL and UAM market is constantly changing and evolving, so maintaining a competitive edge both within the industry and supporting mission effectiveness requires significant research and development activities. Enteknograte offers the industry’s most complete simulation solution for vertical-takeoff-and-landing (VTOL) aircraft. Our research and development procedure has required a blend of qualities such as ambition, drive and commitment as well as more tangible assets such as specialist engineering skills, rapid development through simulation techniques, supreme electronics expertise and a ruthless quest for performance and reliability.
The level of partnership and support for Developing a leading edge VTOL, e-VTOL and UAM system FEA and CFD simulations that our customers get is just as important to us. We are investing time and resources to ensure customers receive support and service that is of the same, highest possible standards as the reliability and performance.
Increase efficiency, reduce noise, costs, and time-to-market of rotorcraft and eVTOL vehicles with an integrated design, simulation and optimization process
- Leverage an integrated design and analysis process to develop preliminary VTOL aircraft designs that maximize propulsion efficiency in hover, maximize aerodynamic efficiency in cruise and minimize noise over the entire flight envelope.
- Use high-fidelity fluid dynamics simulation in an optimization loop to maximize propulsion efficiency and minimize noise in hover.
- Reduce blade-vortex interaction and loads acting on the control surfaces during conversion.
- Design for low-noise manuevers.
- Analyze the acoustic impact in a urban environment during take-off and landing.
- Reduce product development costs and reduce time-to-market using digital simulations to predict performance early in the design cycle rather than physical tests in the late stages of development
Vibroacoustics performance assessment of aircraft panels in low, mid and high frequency regimes
A true VTOL system design has complex challenges, particularly designing for a high thrust for hover while also reducing drag for cruise. In simple terms, you are designing a helicopter and forward-flying aircraft in the same product.
Vibroacoustic (VA) characteristics, namely sound transmission loss, overall sound pressure levels of aircraft panels made up of different materials such as aluminum, composites and fiber metal laminates can be analyzed with optimization approach for aircraft panels.
The investigation involves modeling of aircraft panels using finite element method (FEM) for low frequency, Boundary Element Method (BEM) for mid-frequency and statistical energy analysis (SEA) in high-frequency bands. To obtain the VA characteristics of the panels, twin chambers, namely source and receiver are numerically modeled, and the panels are placed in between them. This numerical study helps in understanding the VA behavior of aircraft materials and also minimizes the cost and time involved in conducting experiments.
Real world Simulation: Combination of experience and advanced analysis tools
Calling upon our wide base of in-house capabilities covering strategic and technical consulting, engineering, manufacturing and analytical software development – we offer each of our clients the individual level of support they are looking for, providing transparency, time savings and cost efficiencies.
Enteknograte engineers participate in method development, advanced simulation work, software training and support. Over experiences in engineering consulting and design development, enables Enteknograte’s engineering team to display strong/enormous client focus and engineering experience. The Enteknograte team supports engineering communities to leverage CFD-FEA simulation softwares and methodologies. It leads to the creation of tailored solutions, aligned with the overall product development process of Enteknograte clients.
Airworthiness certification with efficient aircraft ground vibration
Ground vibration testing (GVT) is a major milestone in the aircraft certification process. The main purpose of the test is to obtain experimental vibration data for the entire aircraft structure so you can validate and improve its structural dynamic models. Among other things, these models are used to predict flutter behavior and plan safety critical flight tests. Ground vibration testing is typically performed late in the development cycle, and due to the limited availability of the aircraft, there is pressure to get the test results as quickly as possible.
Aircraft structural design must be carefully verified to meet performance requirements but also guarantee safety. On one hand, stringent regulations for reduced emissions call for more lightweight structures such as composite materials and innovative aircraft architectures, which creates lots of uncertainty around structural dynamic performance. On the other hand, new urban air mobility concepts enabled by electric propulsion offer possibilities for disruptive vertical take-off and landing (VTOL) aircraft configurations. This calls for more engineering work to validate and tune the performance of such innovative designs.
The goal of Ground vibration testing is to test program-critical flutter simulation results and reduce the risk of flight flutter tests. More specifically, this large-scale modal test on the full aircraft serves to calibrate computer-based finite element (FE) models used for further flutter predictions. The results of the test are the modal parameters of the aircraft structure and include modal frequencies, damping values, mode shapes and scaling factors for a number of configurations. During the GVT campaign, structural coupling tests involving the flight control system are also performed to help calibrate the simulation models and control laws. These calibrated aero-servoelastic models are then used for flutter predictions to analyze the behavior of the aircraft throughout its flight envelope and reduce the risk of the flight flutter test.
CAE Simulation: CFD, FEA, System Modeling, 1D-3D coupling
Integrated expertise covering every Equipment component analysis. From concept through to manufacture and product launch, and for new designs or Equipment modifications, we provide engineering simulation expertise across projects of all sizes. Simulation has become a key enabling factor in the development of highly competitive and advanced Equipment systems. CAE methods play a vital role in defining new Equipment concepts.