Scenario-based Flight Training Simulation with robust Presagis solutions

Global flight simulator market is sky-rocketing and projected to reach $7.7 billion by 2025 with a CAGR of 5.2% from 2019. With the increasing demand for commercial and military pilots, virtual flight training and certify methods are being adopted for aviation safety assurance and to cut cost for pilot training.

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Flight simulators are used to train pilots of commercial aircrafts, military aircrafts, helicopter simulators and Unmanned Aerial Vehicles (UAVs). Growth of the aviation industry is driven by the rise in global air traffic. Rise in demand for aircrafts and pilots acts as a stimulus for the growth of flight simulator market. With flight training simulators, the pilots are trained to handle critical system failure to ensure the success mission execution with prioritized safety. Flight training develops situational awareness to recognize certain conditions to anticipate coming situations. Additionally, pilots use judgement, communication and task prioritization tools during a flight.

Aviate, Navigate, Communicate is the golden rule for pilots

For instance, the pilot-in-command of an aircraft operates within the Instrument Flight Rules (IFR) by relying on the on-board flight instruments and equipment to safely complete the mission. Critical system malfunction is not ideal. However, complete electrical failure can hinder with the navigation operations as well as disrupt the communication system. In such a case, the pilot’s judgement, knowledge and task management skills are vital as it determines the mission outcome. Without the navigation and communication systems, the pilot is required to aviate for a successful completion of the mission. As per the golden rule, pilots should prioritize aviation above navigation and communication.

Flight simulators train pilots to handle dynamic real-life scenarios. It does help in the development of aforementioned skills that pilots can use in such scenarios. Dynamic training is beneficial for aircrew, civilian operators and military mission training operations.

Modern flight training includes flight simulators built on high fidelity & high-quality modules like Presagis’ FlightSIM and HeliSIM solutions maximize efficient training with reduced costs and risks. The training curriculum includes various scenarios, maneuvers, emergency procedures, and so on. In certain cases, pilots might be underprepared to face critical never seen situations. But, with the skills gained from flight training, pilots are capable of handling real-world scenarios.

Let’s consider a slung load transport mission. Operating a helicopter in a hostile environment with a slung load is a tough task. With added interactions with ground control, other aircrafts and hostile forces, the pilot is in for a complex mission with rapid change of events. Training instructors and mission planners are required to replicate such dynamic scenarios with unexpected elements to prepare the pilot for scenarios that are beyond the operation of the aircraft.

To train the pilots in a flexible scenario environment, operators prefer using a representative aircraft simulation model and focus their resources on the design, execute and debrief customized training scenarios for the mission. A representative aircraft model will enable the pilot to focus on the successful mission completion without the distraction of low-quality aircraft models.

Creating a representative aircraft model is effectively done with subjective validation of the simulated aircraft and an experienced pilot. This method highlights specific aircraft behaviors and phenomena for the pilot to learn, recognize and anticipate. For example, with a conventional rotorcraft, pilots expect a decrease in the power required to hover in the proximity to the ground or flying through effective translational lift speed range produces a particular dynamic response. These cues are easily tuned, modeled, and simulated allowing pilots to focus on skill development.

Presagis provides easy-to-use and intuitive graphical user interface useable in multi-disciplinary aircraft design and modelling through FlightSIM and HeliSIM solutions. Users with full data or limited data access hold the provision to create high fidelity or representative aircraft models that can be customized and integrated into dynamic environments.

Applications of Presagis’ FlightSIM & HeliSIM solutions

Advanced technologies for flight simulation training has come a long way in the past decade. These simulators hold functionalities for different types of aircraft flights, cockpits and systems. Flight simulators enable users to easily configure the aircraft flight systems and dynamics with specifications such as rotor blade characteristics, aerodynamics coefficients, environmental parameters, ground interactions and more without any coding.

These solutions are an integral part of flight simulators for fixed wing and rotary wing used by both military and civil class aircrafts. The simulators are used as:

  1. Training devices for pilots and navigators
  2. Engineering test beds by R&D teams
  3. Air traffic management training devices
  4. Wargaming simulators of various degrees, simulate CI, C2, C4I systems etc. and more

Benefits of Presagis’ FlightSIM & HeliSIM solutions

  • Intuitive UI for multi-disciplinary team: Easily simulate the flight models and systems using the enhanced user interface. Tools to view, compare, and modify your model without any coding.
  • Flexible interface to add data packages in any format: Freedom to add data packages, regardless of the format with the solution interface.
  • System simulations: Simulate and configure the Automatic Flight Control Systems (AFCS), gear box, radio navigation, and many more systems.
  • Rapid Integration: Connect to any simulation framework out-of-the-box through CIGI, HLA and DIS. Easily integrate FSTD with third-party software as well.
  • Slung load simulation model (with HeliSIM): Design, configure and hook up a load to the model. Configure the aerodynamic characteristics of the slung load.

Model, Design, Simulate and Collaborate: Upgrade your business process with 3DEXPERIENCE on the Cloud

Dassault Systèmes’ 3DEXPERIENCE on Cloud provides tools to oversee real-time view of the whole ecosystem and activity progress to realize the business vision and goals. 3DEXPERIENCE is a robust collaborative platform with a portfolio of solutions and an interactive environment across the organization and communities available to cloud-based users at all times. Easy-to-use interfaces allow multiple collaborators to ideate, design, simulate and deliver innovative projects for unique customer experiences. With the 3DEXPERIENCE on Cloud, users break free of the IT constraints with a faster, safer and reliable business process that support global collaboration.

The key capabilities of 3DEPERIENCE platform are as follows:

  1. 3D Modeling
  2. Generative Design
  3. Simulation
  4. Collaboration

Design right the first time with 3D Modeling

In this competitive world, it is crucial to have a faster product to market cycle with saved time and cost. Also, there is huge demand to develop and deliver a wide variety of products with advanced engineering and complex processes. Cloud-based mechanical design and surfacing with 3D Modeling provides state of the art engineering capabilities, design tools to collaborate and maintain digital continuity with stakeholders. Users can also:

  • Develop high-quality complex mechanical shapes
  • High-end surface quality with local surface modifiers and global deformation
  • Resolve complex manufacturing deformations without Product re-design and tooling
  • Save expert product data and reuse it as required
  • Easily access real-time information
  • Validate idea by designing products in motion with structural insights

Design complex shapes and patterns quickly with Generative Design

Major challenge of a designer is to develop increasingly complex and innovative 3D models, shapes and patterns to exceed customer demands. There are several limitations in the designer’s ability to explore and capture the variation of ideas. With generative design tools, users can explore, design and validate the complex variants with repetitive non-regular shapes and patterns. Users can also easily collaborate with stakeholders with the browser-based solution to maintain digital continuity and work remotely. Users can also:

  • Boost the design process with the large number of alternatives to the main design with varying styling capabilities
  • Make informed design decisions and shape research with a dynamic 3D modeling experience
  • Provide the best geometry quality with parametric modeling that provides immediate useable geometries

Validate innovation of products faster with Simulation

Countless rounds of trial and errors before production is eliminated by incorporating virtual simulation at each stage of the product design cycle. Real-time collaboration with engineers from different teams accelerates the product innovation and development process by communicating the insights from virtual simulation to relevant key stakeholders at the right time.

Users can perform sophisticated simulations using the robust technology that enables collaboration and digital continuity with the 3DEXPERIENCE on the Cloud. Simulation solutions offerings are:

  • An environment integrated with CAD, CAE and PLM tools
  • Intuitive applications to eliminate guesswork for improvised product design
  • Meets all the simulation demands at any given time and place
  • Increased productivity by enabling engineers and designers to focus on engineering problems than menial manual tasks
  • Streamline the engineering workflow with quick insights into product performance and quality

Product data and lifecycle management with Collaboration

Stay digitally connected with product design data and collaborative teams to formulate efficient plans that enable development and release new products. Easy access to secured product data and lifecycle management with team-based planning enables real-time sharing of design data. With the 3DEXPERIENCE on the Cloud, users can seamlessly collaborate with product data from anywhere at any time on any device. Users can also:

  • Share and discuss ideas in a secure community
  • Manage product design and documents with the CAD environment
  • Define multiple discipline products for release to manufacturing
  • Collaborate using web-based design reviews and track issues
  • Modify under the governance of a change process that notifies relevant stakeholders
  • Define projects, assign tasks and track the real-time status of deliverables
  • Explore and edit multiple product structures with a web-browser

Benefits of 3DEXPERIENCE on the Cloud:

  1. Cost Effective: Without any IT requisites, the 3DEXPERIENCE on the Cloud easy to deploy and ready to use. The complete offering includes an all-in-one solution required by the organization to achieve their business vision with a portfolio of applications such as CATIA, SIMULIA, DELMIA, ENOVIA.
  2. Adaptability: With automatic updates, the latest versions of the applications are available with frequent new features. The 3DEXPERIENCE on the Cloud is flexible as it can be tailored to the user needs with the subscription model. With the ever-changing market, add applications and user as required to align with the business.
  3. Foster Collaboration: With the cloud-based option, working online and remotely is possible at any given time encouraging collaboration with tools to quickly innovate from idea to delivery with multiple stakeholders.
  4. Data Security: Fully secured and encrypted product data with tools for tracking and management of data and activity.
  5. Environment Friendly: Compared to on-site servers 3DEXPERIENCE on the cloud uses 30% less energy.

To know about 3DEXPERIENCE on the Cloud, contact us to speak to our experts.

Abaqus Python Scripting for Beginners

Abaqus FEA is the software suite for computer-aided engineering and finite element analysis. It is used for a wide variety of material modeling simulations in aerospace, automotive and industrial product industries. Abaqus also has multiphysics, structural-pore and piezoelectric capabilities that are valuable for production simulations in various industries.

Abaqus Scripting is a useful high-level tool that combines the functionality of Abaqus’ Graphical User Interface (GUI) with the power of  Python. Abaqus’ Scripting Interface is an application programming interface (API) to modify the data and models in Abaqus. The scripts used in this interface are called Python Scripts.

Python Scripts allow users to perform tasks in Abaqus that would be complex or impossible within the Abaqus GUI. With a script, users can easily automate repetitive tasks, vary parameters of a simulation, extract information from a vast output database and also create a user interface with customized Abaqus’ user interface, hiding parts of the interface from non-FEA team members.

The basic principles of Abaqus Scripting are:

  • Create, modify and save the model
  • Create script files with the input files generated by Abaqus
  • Create output
  • Run the generated script files to redo the calculation
  • Create a different model and output by adjusting the script

To perform these tasks, it is important to have a basic understanding of the Python programming language. Leveraging EDS Technologies’ industry experience in Abaqus, readers can look forward to a series of future blogs on Python Scripting for Abaqus.

Python is a high-level, object-oriented scripting language with its first implementation by Guido van Rossum in 1989 at Centrum Wiskunde & Informatica (CWI), the National Research Institute for Mathematics and Computer Science in the Netherlands. Python is one of the most revered and oldest scripting languages, preferred by Engineers, Scientists, Mathematicians, and Researchers to turn the engineering and mathematical concepts into Applications.

The key features of Python will help beginners understand why Python is so popular and used for Abaqus scripting.

Features of Python:

  • Expressive: It is one of the more expressive programs meaning it is easy to read and understand. Reading through a Python code is similar to reading English but this feature of python enables the coder to concentrate on the solution than the programming language.
  • Large Standard Library: It has an extensive library including modules, expressions, unit testing, databases, GUI, and various other elements for rapid application development.
  • Free and Open Source: It is available for free on the Python website with the open-source code. This is the main reason that makes Python so popular and preferred as it is constantly improved by the community.
  • Portable: Due to the open-source feature, Python holds the capability to run on different platforms such as Windows, Linux, Unix, and Macintosh, etc making it a portable language.
  • GUI Programming: Graphical user interfaces are easily developed using Python. This is one of the key aspects of this language as it enables users to add flair to the program and make the results visually attractive. Also, it supports a wide array of graphic user interfaces that can be easily imported.

As per the ‘Zen of Python’, the philosophy of the Python programming language, simple is better than complex. This series on Python Scripting is to simplify the learning path for beginners and provide an informative resource for Abaqus users. EDS Technologies also provides on-site training for Abaqus customers. Contact us to know more about our training services.

 

ABAQUS: A Complete Solution for Realistic Simulation

A myriad of products have been changing and improving the facet of our lives, be it machines, vehicles, life sciences. The way products are engineered has been changing recently, being more human-centric. Vehicles are engineered to give optimal driving experience, autonomous vehicles that drive by themselves giving the owner the luxury and comfort, there are many wearable devices being engineered to monitor health etc. To achieve this, a lot of non-destructive testing needs to be done which is achieved very efficiently through virtual simulations. Dassault Systemes’ SIMULIA, a step ahead in virtual analysis, offers the virtual simulation landscape with a variety of simulation and optimisation software like Abaqus, Fe-Safe, I-sight etc. SIMULIA provides a multitude of multidisciplinary, multi-scale simulation applications for various industries such as Aerospace and Defence, Transportation and Mobility, Life-sciences, High tech, Energy and Materials, Industrial Equipment, Heavy engineering etc.

Below are some of the salient features of Abaqus from the SIMULIA portfolio:

  1. Abaqus/Standard provides Abaqus analysis technology to solve traditional implicit finite element analysis, including static, dynamic, and thermal analyses, all powered with the widest range of contact and nonlinear material options. Abaqus/Standard also has optional add-on and interface products that address design sensitivity analysis, offshore engineering, and integration with third-party software.
  2. Abaqus/Explicit provides analysis technology focused on transient dynamics and quasi-static analyses using explicit time integration, which is appropriate in many applications, such as drop tests, crushing, and manufacturing processes.
  3. Abaqus/CAE provides a complete modelling and visualization environment for Abaqus analysis products. With direct access to CAD models, advanced meshing and visualization, and with an exclusive view towards Abaqus analysis products, Abaqus/CAE is the modelling environment of choice for many Abaqus users.
  4. Abaqus/CFD provides advanced computational fluid dynamics capabilities with extensive support for pre- and post-processing provided in Abaqus/CAE. These scalable parallel CFD simulation capabilities address a broad range of nonlinear coupled fluid-thermal and fluid-structural problems.
  5. For implicit and explicit analysis, Abaqus has it all integrated. You can switch from explicit/implicit between analysis steps.
  6. Abaqus CAE GUI is very user-friendly, and the user can model a problem in a real – virtual manner.
  7. Abaqus can be used for both linear and non-linear analysis.

Realistic Simulation Supports Expansion of the London Underground

Dubbed “one of the most complex tunneling projects in the U.K.,” the Bond Street Station Upgrade (BSSU) project is being carried out to satisfy growing traffic demands within London’s busiest shopping district, the West End.

Upon its completion, Bond Street Station’s daily passenger numbers are expected to rise from 155,000 to 225,000.

A project this complex in nature has to consider the existing tunnel infrastructure, as well as the stress and strains imposed by the surrounding soil layers for the development of new tunnels.

Dr. Sauer and Partners was contracted to provide such tunneling expertise. The company took on responsibility for preliminary-to-detailed design and

Using FEA simulation, they were able to virtually test the ground through which the tunnels are being dug alongside the existing tunnel structures.

Model1.000

This realistic assessment enabled them to improve upon the preliminary design, as well as bring greater confidence to the overall approval process.

To learn more, read the case study, “Tunnel Vision” to see how realistic simulation plays an important role in tunnel excavation.

We also encourage you to download the whitepaper by Ali Nasekhian, Sr. Tunnel/Geotechnical engineer at Dr. Sauer and Partners, which highlights the merits and shortcomings of large 3D models in tunneling.

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