//www.koonmotors.com/news/matter_energy/aerospace/ Aerospace research news. en-us Fri, 08 Sep 2023 15:50:27 EDT Fri, 08 Sep 2023 15:50:27 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/matter_energy/aerospace/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/08/230823122513.htm New algorithms for trajectory planning and control of fixed-wing 'tailsitter' aircraft are faster and more efficient than traditional quadcopter drones. The algorithms can execute challenging maneuvers and are so efficient they can plan complex trajectories in real-time. Wed, 23 Aug 2023 12:25:13 EDT //www.koonmotors.com/releases/2023/08/230823122513.htm //www.koonmotors.com/releases/2023/06/230623161110.htm Air taxis may be coming to our cities in the near future, but a new study warns regulations will need to address dangerous wind gusts around city buildings and other urban infrastructure. Fri, 23 Jun 2023 16:11:10 EDT //www.koonmotors.com/releases/2023/06/230623161110.htm //www.koonmotors.com/releases/2023/06/230612200426.htm Researchers developed a machine-learning technique that can autonomously drive a car or fly a plane through a very difficult 'stabilize-avoid' scenario, in which the vehicle must stabilize its trajectory to arrive at and stay within some goal region, while avoiding obstacles. Mon, 12 Jun 2023 20:04:26 EDT //www.koonmotors.com/releases/2023/06/230612200426.htm //www.koonmotors.com/releases/2023/06/230609125715.htm Aerospace engineers designed a 1-megawatt electrical motor that is a stepping stone toward electrifying the largest aircraft. Fri, 09 Jun 2023 12:57:15 EDT //www.koonmotors.com/releases/2023/06/230609125715.htm //www.koonmotors.com/releases/2023/06/230608120936.htm New research shows that clear-air turbulence increased in various regions around the world from 1979 -- 2020. Thu, 08 Jun 2023 12:09:36 EDT //www.koonmotors.com/releases/2023/06/230608120936.htm //www.koonmotors.com/releases/2023/05/230524182045.htm The effects of the ground on propeller noise have now been measured experimentally. Wed, 24 May 2023 18:20:45 EDT //www.koonmotors.com/releases/2023/05/230524182045.htm //www.koonmotors.com/releases/2023/04/230404114255.htm A research team has demonstrated a unique method that reduces the aerodynamic resistance of ships by 7.5 per cent. This opens the way for large cargo ships borne across the oceans by wind alone, as wind-powered ships are more affected by aerodynamic drag than fossil-fueled ones. Tue, 04 Apr 2023 11:42:55 EDT //www.koonmotors.com/releases/2023/04/230404114255.htm //www.koonmotors.com/releases/2023/03/230330102433.htm Researchers developed a multiagent trajectory planning system that guarantees a group of drones working together in the same airspace will avoid collisions even if their communications to one another are delayed. Thu, 30 Mar 2023 10:24:33 EDT //www.koonmotors.com/releases/2023/03/230330102433.htm //www.koonmotors.com/releases/2023/03/230328145315.htm A team of scientists presents an original oscillating short-term memory model to study the dynamics of landing events at 10 major European airports. The model can estimate how landing volumes will influence those in consecutive hours -- a critical ability given airport capacity constraints and external events that cause landing delays. Altogether, the model demonstrates that statistical analyses of hourly plane landing volumes can yield valuable insights into airport operations. Tue, 28 Mar 2023 14:53:15 EDT //www.koonmotors.com/releases/2023/03/230328145315.htm //www.koonmotors.com/releases/2023/03/230315085949.htm Electrification is seen as having an important role to play in the fossil-free aviation of tomorrow. But electric aviation is battling a trade-off dilemma: the more energy-efficient an electric aircraft is, the noisier it gets. Now, researchers have developed a propeller design optimization method that paves the way for quiet, efficient electric aviation. Wed, 15 Mar 2023 08:59:49 EDT //www.koonmotors.com/releases/2023/03/230315085949.htm //www.koonmotors.com/releases/2023/02/230208125149.htm 一个研究小组已经演示了使用诺l control method in an aircraft with no tail. The technology allows an aircraft to be as smooth and sleek as possible, making it safer to fly in dangerous areas where radar scans the sky for sharp edges. While conventional aircraft rely on protruding fins to enable steering, a tailless design is controlled by active air flow -- in which jets of air are blown onto different surfaces of the aircraft body, corresponding to which direction the aircraft is moving. This technology could be employed to make commercial airplanes more fuel-efficient by removing existing steering parts that create a lot of drag. Wed, 08 Feb 2023 12:51:49 EST //www.koonmotors.com/releases/2023/02/230208125149.htm //www.koonmotors.com/releases/2023/01/230109112727.htm 最近的测量表明,法兰克福强度rnational Airport is a major source of ultrafine particles and that these can disperse over long distances across the city. Researchers have now discovered that the ultrafine particles partly consist of synthetic jet oils. The research team has deduced that emissions from lubrication oils must be lowered in addition to those from kerosene in order to reduce the concentration of ultrafine particles and thus improve air quality. 星期一,2023年1月09 11:27:27 EST //www.koonmotors.com/releases/2023/01/230109112727.htm //www.koonmotors.com/releases/2022/11/221129112706.htm An interdisciplinary team of researchers has developed a potential breakthrough in green aviation: a recipe for a net-zero fuel for planes that will pull carbon dioxide (CO2) out of the air. Tue, 29 Nov 2022 11:27:06 EST //www.koonmotors.com/releases/2022/11/221129112706.htm //www.koonmotors.com/releases/2022/10/221031212813.htm Engineers synthesized aligned forests of nanoscale fibers made of boron nitride, or 'white graphene.' They hope to harness the technique to fabricate bulk-scale arrays of these nanotubes, which can then be combined with other materials to make stronger, more heat-resistant composites, for instance to shield space structures and hypersonic aircraft. Mon, 31 Oct 2022 21:28:13 EDT //www.koonmotors.com/releases/2022/10/221031212813.htm //www.koonmotors.com/releases/2022/09/220929132552.htm Until now, little attention has been paid to the flow of liquid through deformable elastic nozzles. New research introduces the concept of passively-deforming nozzles, and shows that softer nozzle materials can produce more stable jets across a wide range of flow rates. Thu, 29 Sep 2022 13:25:52 EDT //www.koonmotors.com/releases/2022/09/220929132552.htm //www.koonmotors.com/releases/2022/09/220929132537.htm Researchers have used a novel near-infrared light imaging technique to capture the first cross-sectional images of carbon dioxide in the exhaust plume of a commercial jet engine. The new state-of-the-art technology could help accelerate turbine combustion research aimed at developing engines and aviation fuels that are more environmentally friendly. Thu, 29 Sep 2022 13:25:37 EDT //www.koonmotors.com/releases/2022/09/220929132537.htm //www.koonmotors.com/releases/2022/09/220927125101.htm An underutilized natural resource could be just what the airline industry needs to curb carbon emissions. Researchers report success in using lignin as a path toward a drop-in 100% sustainable aviation fuel. Lignin makes up the rigid parts of the cell walls of plants. Other parts of plants are used for biofuels, but lignin has been largely overlooked because of the difficulties in breaking it down chemically and converting it into useful products. Tue, 27 Sep 2022 12:51:01 EDT //www.koonmotors.com/releases/2022/09/220927125101.htm //www.koonmotors.com/releases/2022/09/220912132350.htm To combat the hazards of ice, a mechanical engineer has developed a sprayable ice-shedding material that is 100 times stronger than any others. It's been tested by Boeing under erosive rain conditions at 385 miles per hour and outperformed current state-of-the-art aerospace coating technologies. Mon, 12 Sep 2022 13:23:50 EDT //www.koonmotors.com/releases/2022/09/220912132350.htm //www.koonmotors.com/releases/2022/09/220905160941.htm People have been fascinated by bird flight for centuries, but exactly how birds can be so agile in the air remains mysterious. A new study uses modeling and aerodynamics to describe how gulls can change the shape of their wings to control their response to gusts or other disturbances. The lessons could one day apply to uncrewed aerial vehicles or other flying machines. Mon, 05 Sep 2022 16:09:41 EDT //www.koonmotors.com/releases/2022/09/220905160941.htm //www.koonmotors.com/releases/2022/08/220809101737.htm Researchers have developed an AI pilot that enables autonomous aircraft to navigate a crowded airspace. The artificial intelligence can safely avoid collisions, predict the intent of other aircraft, track aircraft and coordinate with their actions, and communicate over the radio with pilots and air traffic controllers. The researchers aim to develop the AI so the behaviors of their system will be indistinguishable from those of a human pilot. Tue, 09 Aug 2022 10:17:37 EDT //www.koonmotors.com/releases/2022/08/220809101737.htm //www.koonmotors.com/releases/2022/08/220808161452.htm Engineers have designed and successfully tested a more efficient wind sensor for use on drones, balloons and other autonomous aircraft. Mon, 08 Aug 2022 16:14:52 EDT //www.koonmotors.com/releases/2022/08/220808161452.htm //www.koonmotors.com/releases/2022/05/220517130736.htm To uncover the mystery behind the differences in motion, a team of researchers studied the aerodynamics of bird perching maneuvers and their implications for aircraft design. Tue, 17 May 2022 13:07:36 EDT //www.koonmotors.com/releases/2022/05/220517130736.htm //www.koonmotors.com/releases/2022/05/220505085644.htm Neural-Fly technology could one day build the future of package delivery drones and flying cars. Thu, 05 May 2022 08:56:44 EDT //www.koonmotors.com/releases/2022/05/220505085644.htm //www.koonmotors.com/releases/2022/04/220427100446.htm An experimental plant-based jet fuel could increase engine performance and efficiency, while dispensing with aromatics, the pollution-causing compounds added to conventional fuels, according to new research. Wed, 27 Apr 2022 10:04:46 EDT //www.koonmotors.com/releases/2022/04/220427100446.htm //www.koonmotors.com/releases/2022/03/220309111120.htm While it had been assumed that unstable gliding was the key to agility in bird flight, a collaboration between aerospace engineers and biologists has revealed that stability plays a role. Wed, 09 Mar 2022 11:11:20 EST //www.koonmotors.com/releases/2022/03/220309111120.htm //www.koonmotors.com/releases/2022/02/220207124808.htm 与联邦政府计划的largest sale of offshore wind farm leases in the nation's history, a new study could help inform the development of offshore wind farms by providing detailed models characterizing the frequency, intensity and height of low-level jet streams over the U.S. Atlantic coastal zone. Mon, 07 Feb 2022 12:48:08 EST //www.koonmotors.com/releases/2022/02/220207124808.htm //www.koonmotors.com/releases/2022/01/220112121559.htm The effectiveness of face masks has been a hotly debated topic since the emergence of COVID-19. However, a new study offers more evidence that they work. Researchers found that face masks reduce the distance airborne pathogens could travel, when speaking or coughing, by more than half compared to not wearing a mask. Wed, 12 Jan 2022 12:15:59 EST //www.koonmotors.com/releases/2022/01/220112121559.htm //www.koonmotors.com/releases/2021/12/211206220022.htm An engineer is changing what we know about when water freezes as he pushes the limit and gets the best look yet at tiny drops of water as they freeze. Mon, 06 Dec 2021 22:00:22 EST //www.koonmotors.com/releases/2021/12/211206220022.htm //www.koonmotors.com/releases/2021/11/211109120304.htm 材料能承受的压力更加积极re it cracks is critical information when designing aircraft, spacecraft, and other structures. Aerospace engineers used machine learning for the first time to predict stress in copper at the atomic scale. Tue, 09 Nov 2021 12:03:04 EST //www.koonmotors.com/releases/2021/11/211109120304.htm //www.koonmotors.com/releases/2021/11/211102180532.htm Researchers have developed an artificial material which can respond to its environment, independently make a decision, and perform an action not directed by a human being. For example, a drone making a delivery might evaluate its environment including wind direction, speed or wildlife, and automatically change course in order to complete the delivery safely. The material incorporates 3 main functions also displayed by materials found in nature, such as chameleons changing the color of their skin to blend into their surroundings. Tue, 02 Nov 2021 18:05:32 EDT //www.koonmotors.com/releases/2021/11/211102180532.htm //www.koonmotors.com/releases/2021/09/210927110502.htm Flying cars, drones, and other urban aerial mobility vehicles have real potential to provide efficient transportation and delivery solutions, but what happens if a drone delivering cheeseburgers breaks down over a city park or in the middle of a crowded street? Researchers developed a method to measure vehicles' ability to recover and complete its mission safely. Mon, 27 Sep 2021 11:05:02 EDT //www.koonmotors.com/releases/2021/09/210927110502.htm //www.koonmotors.com/releases/2021/08/210812123108.htm Engineers found a way to greatly extend the life of materials used in jet engines. Thu, 12 Aug 2021 12:31:08 EDT //www.koonmotors.com/releases/2021/08/210812123108.htm //www.koonmotors.com/releases/2021/08/210810153449.htm A new algorithm helps drones find the fastest route around obstacles without crashing. The system could enable fast, nimble drones for time-critical operations such as search and rescue. Tue, 10 Aug 2021 15:34:49 EDT //www.koonmotors.com/releases/2021/08/210810153449.htm //www.koonmotors.com/releases/2021/07/210727171642.htm How do you control ice formation on a plane, even when it's in flight? Engineers are developing an approach using ice itself. They created a de-icing method that exploits how frost grows on pillar structures to suspend ice as it forms into a layer that's easier to remove. Tue, 27 Jul 2021 17:16:42 EDT //www.koonmotors.com/releases/2021/07/210727171642.htm //www.koonmotors.com/releases/2021/07/210712183327.htm Having a home near a busy airport certainly has its perks. It is close to many establishments and alleviates the problem of wading through endless traffic to catch flights. But it does come at a cost -- tolerating the jarring sounds of commercial airplanes during landing and takeoff. Researchers have now conducted a computational study that validates using a shape-memory alloy to reduce the unpleasant plane noise produced during landing. Mon, 12 Jul 2021 18:33:27 EDT //www.koonmotors.com/releases/2021/07/210712183327.htm //www.koonmotors.com/releases/2021/06/210618091625.htm An incredibly light new material can reduce aircraft engine noise and improve passenger comfort. The graphene oxide-polyvinyl alcohol aerogel weighs just 2.1kg per cubic meter, making it the lightest sound insulation ever manufactured. Fri, 18 Jun 2021 09:16:25 EDT //www.koonmotors.com/releases/2021/06/210618091625.htm //www.koonmotors.com/releases/2021/04/210405123311.htm A new study suggests that masks and a good ventilation system are more important than social distancing for reducing the airborne spread of COVID-19 in classrooms. The research comes at a critical time when schools and universities are considering returning to more in-person classes in the fall. Mon, 05 Apr 2021 12:33:11 EDT //www.koonmotors.com/releases/2021/04/210405123311.htm //www.koonmotors.com/releases/2021/03/210310100637.htm Researchers have published a study revealing their successful approach to designing much quieter propellers. Wed, 10 Mar 2021 10:06:37 EST //www.koonmotors.com/releases/2021/03/210310100637.htm //www.koonmotors.com/releases/2021/02/210203090518.htm Investigators have published a global review of mammal strikes with aircraft, noting that events have been increasing by up to 68% annually. More mammals were struck during the landing phase of an aircraft's rotation than any other phase, according to a new article. Wed, 03 Feb 2021 09:05:18 EST //www.koonmotors.com/releases/2021/02/210203090518.htm //www.koonmotors.com/releases/2021/01/210125191835.htm Researchers found flights between London and New York could have used up to 16% less fuel by more accurately following jet stream tailwinds or avoiding headwinds, at a fraction of the cost of other emissions-cutting technologies. Mon, 25 Jan 2021 19:18:35 EST //www.koonmotors.com/releases/2021/01/210125191835.htm //www.koonmotors.com/releases/2021/01/210125144619.htm Design of aerial vehicles and weapon systems relies on the ability to predict aerodynamic behavior, often aided by advanced computer simulations of the flow of air over the body. High-fidelity simulations assist engineers in maximizing how much load a rotorcraft can lift or how far a missile can fly, but these simulations aren't cheap. A new turbulence model could change that. Mon, 25 Jan 2021 14:46:19 EST //www.koonmotors.com/releases/2021/01/210125144619.htm //www.koonmotors.com/releases/2021/01/210121131701.htm To help build aircraft that can better handle violent turbulence, researchers developed a new model that allows engineers to incorporate the physics of an entire vortex collision into their design codes. Thu, 21 Jan 2021 13:17:01 EST //www.koonmotors.com/releases/2021/01/210121131701.htm //www.koonmotors.com/releases/2021/01/210114085407.htm A proposed hybrid-electric plane could 'eliminate aviation's air pollution problem,' say engineers. The new design could reduce global nitrogen oxide (NOx) emissions by 95 percent, they report in a study. Thu, 14 Jan 2021 08:54:07 EST //www.koonmotors.com/releases/2021/01/210114085407.htm //www.koonmotors.com/releases/2021/01/210113100810.htm Carbon-neutral aviation is possible, but in future, aircraft are likely to continue to be powered by fossil fuels. The CO2 they emit must be systematically stored underground. This is the most economical of various approaches researchers have compared in detail. Wed, 13 Jan 2021 10:08:10 EST //www.koonmotors.com/releases/2021/01/210113100810.htm //www.koonmotors.com/releases/2020/12/201216134707.htm Researchers believe a new hinge is the key to get load-bearing, large, Army quadrotors to climb a few dozen feet in seconds. Wed, 16 Dec 2020 13:47:07 EST //www.koonmotors.com/releases/2020/12/201216134707.htm //www.koonmotors.com/releases/2020/12/201207124116.htm After more than three years in development, a team of U.S. Army researchers and industry partners completed the construction of a testbed that will help to inform the design of future Army rotorcraft. The team plans to test the TiltRotor Aeroelastic Stability Testbed, or TRAST in a massive wind tunnel at the NASA Langley Research Center to gauge the effectiveness of modern tiltrotor stability models. Mon, 07 Dec 2020 12:41:16 EST //www.koonmotors.com/releases/2020/12/201207124116.htm //www.koonmotors.com/releases/2020/12/201207102109.htm A new study provides the first look at how much noise pollution is impacting the Olympic Peninsula. The paper found that aircraft were audible across a large swath of the peninsula at least 20% of weekday hours, or for about one hour during a six-hour period. About 88% of all audible aircraft in the pre-pandemic study were military planes. Mon, 07 Dec 2020 10:21:09 EST //www.koonmotors.com/releases/2020/12/201207102109.htm //www.koonmotors.com/releases/2020/12/201201153422.htm Imagine a silent helicopter stealthily moving troops and supplies around a future battlefield. U.S. Army researchers look to helicopter noise reduction technology as a top priority in aircraft design. Tue, 01 Dec 2020 15:34:22 EST //www.koonmotors.com/releases/2020/12/201201153422.htm //www.koonmotors.com/releases/2020/11/201126085927.htm A new study finds that invasive keyhole wasps at the Brisbane Airport were responsible for instances of fully blocked replica pitot probes -- vital instruments that measure airspeed. The results underscore the importance of risk-mitigating strategies, such as covering pitot probes when aircraft arrive and setting up additional traps to intercept the wasps. Thu, 26 Nov 2020 08:59:27 EST //www.koonmotors.com/releases/2020/11/201126085927.htm //www.koonmotors.com/releases/2020/10/201013124205.htm In the era of electric cars, machine learning and ultra-efficient vehicles for space travel, computers and hardware are operating faster and more efficiently. But this increase in power comes with a trade-off: They get superhot. To counter this, researchers are developing a way for large machines to 'breathe' in and out cooling blasts of water to keep their systems from overheating. The findings are detailed in a recent study in the journal Physical Review Fluids. Tue, 13 Oct 2020 12:42:05 EDT //www.koonmotors.com/releases/2020/10/201013124205.htm //www.koonmotors.com/releases/2020/09/200917180407.htm In the 2019 Boeing 737 Max crash, the recovered black box from the aftermath hinted that a failed pressure sensor may have caused the ill-fated aircraft to nose dive. This incident and others have fueled a larger debate on sensor selection, number and placement to prevent the reoccurrence of such tragedies. Researchers have now developed a comprehensive mathematical framework that can help engineers make informed decisions about which sensors to use. Thu, 17 Sep 2020 18:04:07 EDT //www.koonmotors.com/releases/2020/09/200917180407.htm //www.koonmotors.com/releases/2020/08/200811120225.htm A new study finds windy conditions can weaken St. Elmo's fire, the phenomenon when electrically conductive structures spontaneously emit a flash of blue light, when it's generated by aircraft and other ungrounded objects. Tue, 11 Aug 2020 12:02:25 EDT //www.koonmotors.com/releases/2020/08/200811120225.htm //www.koonmotors.com/releases/2020/07/200722142724.htm A drone prototype that mimics the aerobatic manoeuvres of one of the world's fastest birds, the swift, is being developed by an international team of engineers in the latest example of biologically inspired flight. Wed, 22 Jul 2020 14:27:24 EDT //www.koonmotors.com/releases/2020/07/200722142724.htm //www.koonmotors.com/releases/2020/06/200622133031.htm Instead of responding to each flight delay as if it were an isolated event, airlines should consider the likelihood of potential disruptions ahead, researchers report. They developed a new approach that allows airlines to respond to flight delays and cancellations while also incorporating information about likely disruptions later the same day. Mon, 22 Jun 2020 13:30:31 EDT //www.koonmotors.com/releases/2020/06/200622133031.htm //www.koonmotors.com/releases/2020/06/200611133129.htm Research has assessed the initial impact of COVID-19 on air transport and found that it is likely to lead to a smaller, consolidated sector in the future. Thu, 11 Jun 2020 13:31:29 EDT //www.koonmotors.com/releases/2020/06/200611133129.htm //www.koonmotors.com/releases/2020/05/200515085710.htm Monitoring greenhouse gas emissions from cities is important in order to support climate mitigation activities in response to the Paris Agreement. An international research team examined carbon dioxide (CO2) data collected over 34 global cities by Japan's commercial airliners. Their study revealed a relationship between urban atmospheric CO2 signals and emissions from cities for the first time. The relationship suggests that global observations by commercial airlines could provide an opportunity for urban CO2 emissions monitoring. Fri, 15 May 2020 08:57:10 EDT //www.koonmotors.com/releases/2020/05/200515085710.htm //www.koonmotors.com/releases/2020/05/200505121705.htm Humans depend on fossil fuels as their primary energy source, especially in transportation. However, fossil fuels are both unsustainable and unsafe, serving as the largest source of greenhouse gas emissions. Researchers have demonstrated a prototype device that uses microwave air plasmas for jet propulsion, generating the high-temperature, high-pressure plasma in situ using only injected air and electricity. Tue, 05 May 2020 12:17:05 EDT //www.koonmotors.com/releases/2020/05/200505121705.htm //www.koonmotors.com/releases/2020/04/200413140507.htm Offshore energy-producing platforms in US waters of the Gulf of Mexico are emitting twice as much methane, a greenhouse gas, than previously thought, according to a new study. Mon, 13 Apr 2020 14:05:07 EDT //www.koonmotors.com/releases/2020/04/200413140507.htm //www.koonmotors.com/releases/2020/04/200402100851.htm Knowing the air density outside of a spacecraft can have a substantial effect on its angle of descent and ability to hit a specific landing spot. But sensors that can withstand the harsh hypersonic conditions are rare. Aerospace engineering researchers developed an algorithm that can run onboard a vehicle, providing important real-time data to aid in steering the craft, particularly during the crucial entry, descent, and landing stage. Thu, 02 Apr 2020 10:08:51 EDT //www.koonmotors.com/releases/2020/04/200402100851.htm //www.koonmotors.com/releases/2020/02/200226130529.htm Many satellites are in space to take photos. But a vibrating satellite, like a camera in shaky hands, can't get a sharp image. Pointing it at a precise location to take a photo or perform another task, is another important function requiring accuracy. Wed, 26 Feb 2020 13:05:29 EST //www.koonmotors.com/releases/2020/02/200226130529.htm