Mr. Electric of Ontario’s Post

Linearizing a flight model offers the possibility of using a large number of tools and approaches for the analysis of the flying and handling qualities of a given aircraft. #NyaDev #Academic is used in the video below for the analysis of a frozen state during the flight simulation. The linear #equation #of #motion is defined for the flight stated being analyzed. From this equation, the #dynamic #modes, the #dynamic #characteristics, the #transfer #functions, the #time #response, the #Bode and #Nyquist plots are derived. NyaDev also also offers the possibility of using the #Cooper-#Harper Rating Scale for the evaluation of the flying and handling qualities.

Unlock the future of mobility with simulation. Watch the latest episode of #DrivenBySim to see how DeepDrive is using simulation to reimagine mobility with their in-wheel motor technology. https://ansys.me/3RANxDU

Serendipitous real-world flow visualisation. Not only does this nicely visualise the separated and turbulent flow field behind a vehicle, but also illustrates one of the fundamental causes of drag. The fact that the plastic sheet remains attached to the rear of the car is due to the low pressures over the surface. This low pressure is, literally, sucking the car backwards. This is drag. The other important point to note is, do not litter! I am not responsible for the soundtrack, but thank you Paul Biver for sharing. #aerodynamics #automotivedesign

Boston Dynamics new Atlas humanoid with 360° rotation at all joints is both cool and creepy. https://lnkd.in/gVG5cftN

📃Scientific paper: Trajectory Planning and Tracking of Hybrid Flying-Crawling Quadrotors Abstract: Hybrid Flying-Crawling Quadrotors (HyFCQs) are transformable robots with the ability of terrestrial and aerial hybrid motion. This article presents a trajectory planning and tracking framework designed for HyFCQs. In this framework, a terrestrial-aerial path-searching method with the crawling limitation of HyFCQs is proposed to guarantee the dynamical feasibility of trajectories. Additionally, a trajectory tracking method is proposed to address the challenges associated with the deformation time required by HyFCQs, which makes tracking hybrid trajectories at the junction between terrestrial and aerial segments difficult. Simulations and real-world experiments in diverse scenarios validate the exceptional performance of the proposed approach. Continued on ES/IODE ➡️ https://etcse.fr/LNt ------- If you find this interesting, feel free to follow, comment and share. We need your help to enhance our visibility, so that our platform continues to serve you.

For large and expensive satellites, ANT61 is building robots that will dock, refuel, and, in the future, refurbish satellites, prolonging their useful life. At the core of these robots lies ANT61 BrainTM, the innovative devices that combine machine vision and decision-making technology, enabling the autonomy of these maintenance robots. Check out the full article in collaboration with BrainChip here: https://lnkd.in/e8d9wBek -------------------------------- How to get your company on Wevolver? Wevolver is a platform used by millions of engineers to stay up to date about the latest technologies. Learn how your company can connect with the community and reach a global audience of engineers: https://lnkd.in/gtbsMuU2

Hey linkedIn family,  I hope everyone is enjoying their summer. Wish you all the best out of it. Today, I get some time to share one of our projects related to #Adaptive_Control, which is part of the lab activity we have completed. The project was about #Control_the_rolling_dynamics_of_an_airplane_using #MODEL_IDENTIFICATION_ADAPTIVE_CONTROL (MIAC) scheme. I have completed this project by collaborating with my friend Abel Mebratu. For this project, we have used #Matlab/Simulink to simulate and analyze the result. You can refer to this in the attachment. 🔎 Before going deep into the control algorithm, understanding some concepts and key components about airplane #rolling dynamics is crucial. Airplane rolling dynamics refer to the behavior and control of an aircraft's rotation around its longitudinal axis, which runs from the nose to the tail. This rotation is known as "roll."  The airplane rolling dynamics concept includes: 1. Axes and Rotation - Longitudinal Axis: The roll axis around which the airplane rotates during a roll. 2. Control Surfaces - Ailerons: Primary control surfaces for roll, located on the trailing edge of each wing, near the wingtips. - Spoilers: Secondary control surfaces that can assist with roll by disrupting airflow over the wings, typically used on larger or faster aircraft. 3. Roll Stability and Control - Dihedral Angle(delta): The upward angle of the wings relative to the horizontal plane. 4. Equations of Motion The rolling dynamics can be described by the rotational form of Newton's second law that relates moment of inertia and rate of rolling. 5. Aerodynamic Forces - Lift and Drag: Differences in lift and drag between the left and right wings due to aileron deflection result in a rolling moment. - Roll Damping: The rate of change of roll angle generates damping moments that resist the roll motion, proportional to the roll rate. 6. Control Response - Roll Rate: The speed at which the aircraft rolls about its longitudinal axis. Pilots control this rate by varying the deflection of ailerons. - Control Harmony: The balance and coordination between roll, pitch, and yaw controls, critical for smooth and efficient flight maneuvers. 7. Simulation and Testing - Flight Simulators: - Wind Tunnel Testing: Now, my concern here is the control aspect specific to the rolling angle and I attached the results. For any unclear details, you can contact me. Finally, I want to say thank you our great Professor Maciej M. Michałek and Mohammed A M Safarini for their support during lecture and lab classes respectively. #airplane_dynamics #adaptive_control, #MIAC_scheme, #Model-based_approach #Matlab/Simulink, #Contol_System_Engineering

Astro Tech -- Prop Slew Rate / Limited by Physics It's easy to make a drone fly, it's very hard to make one fly well. You want your drone to be smooth, precise, and agile when needed. You need motors and motor drives that can speed / slow the motors props as quickly as possible. We invested years into motor drive design to ensure we can accelerate and decelerate Astro’s 21 inch props as fast as physics will allow. During testing we were able to accelerate the motor at 200,000 rpm/s, any faster than this would cause the prop to start to fold up in its folding adapter. Luckily this slew rate was fast enough for Astro to fly wonderfully, but if you see fixed props or a new innovation in the prop adapter from Freefly in the future you will know why…..we are always chasing that next improvement that allows us to fly longer, faster, and more precisely than before. Learn More: https://lnkd.in/gePCugqr #freeflyastro

The principle of flight is made up of four fundamental forces: lift, weight, drag, and thrust. These forces work together in a delicate balance to determine an aircraft’s trajectory, with lift and weight opposing each other and thrust and drag doing the same. Daniel Bernoulli was an 18th-century Swiss mathematician and physicist known for his contributions to fluid dynamics, studying how fluids move and behave. He is particularly famous for his principle, which explains how a fluid’s pressure and velocity are related. This principle is vital for understanding how air moves around objects, including airplane wings. It is crucial for understanding the principles of flight. Bernoulli’s Principle is a fundamental concept in fluid dynamics that explains how pressure and velocity are related in a fluid. But this also relates directly to airflow. When air flows over a wing, it splits into two streams. One flows over the wing’s curved upper surface, and the other flows underneath the flat lower surface. According to Bernoulli’s Principle, as the air flows over the wing’s curved upper surface, its velocity increases, and its pressure decreases. This creates a region of lower pressure above and higher pressure below the wing. This pressure difference generates an upward force on the wing, known as lift, which allows the airplane to take off and stay in the air. It’s fascinating to think that the simple act of air moving over the curved surface of a wing can create enough lift to keep an airplane airborne. Fun Fact: Bernoulli’s Principle explains how an airplane can stay in the air and has applications in many other fields. These include the design of race cars, the study of ocean currents, and the development of medical devices. What Are The 4 Principles of Flight? Flight comes down to four fundamental forces: lift, weight, thrust, and drag. Each force has its own direction, opposing force, and factors that affect its strength. the thrust and lift combine to create a resultant force that overcomes the weight, causing the aircraft to climb. How About The Forces Of Flight In a Descent The mechanics of descent in flight are a piece of cake. Although the airplane’s wing still generates some lift, it’s outweighed by the aircraft’s weight. Additionally, the thrust vector is small. If the plane faces downward, the resultant force of the weight and thrust combined will surpass the lift produced. It’s worth reiterating that the weight vector always acts straight down. As a result, unless the lift and thrust vectors, or the resultant force of the two, exceed the weight, the airplane will always descend. What does this mean? When flying an airplane in a turn, you must apply power (boosting the thrust) and pull back a bit on the stick (increasing the lift). When the airplane is banked, the lift vector points in a direction that doesn’t precisely oppose the weight vector. If you don’t use power and back-stick, the airplane will make a turn, but it will also descend!

Hopcopter - Revolutionizing robotics with hybrid mobility The Hopcopter, merging hopping and flying, revolutionizes robotic mobility. 🟥Inspiration: Engineers drew from nature for the hybrid robot concept. 🟥Design: Engineers integrated a micro-quadcopter with a telescopic leg for stability. 🟥Testing: Controlled experiments ensured reliability across terrains. 🟥Optimization: Refinement improved agility and energy efficiency. 🟥Validation: Field tests confirmed practical applications. 🟥Dissemination: Research findings were shared in scientific journals. 🟥Uses: Search and Rescue, Exploration,Surveillance, Agriculture,Infrastructure Inspection #hopcopter #hybridmobility #innovation #engineering