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Successful trial shows way forward on quieter drone propellers


Credit: RMIT University
Researchers have published a study revealing their successful approach to designing much quieter propellers.
The Australian research team used machine learning to design their propellers, then 3D printed several of the most promising prototypes for experimental acoustic testing at the Commonwealth Scientific and Industrial Research Organisation s specialised echo-free chamber.
Results now published in
Aerospace Research Central show the prototypes made around 15dB less noise than commercially available propellers, validating the team s design methodology.
RMIT University aerospace engineer and lead researcher Dr Abdulghani Mohamed said the impressive results were enabled by two key innovations - the numerical algorithms developed to design the propellers and their consideration of how noise is perceived in the human ear - as part of the testing. ....

Woutijn Baars , Abdulghani Mohamed , Simon Watkins , Geoff Durham , Robert Carrese , Aerospace Research Central , Aerospace Engineering , Industrial Research Organisation , Commonwealth Scientific , Professor Simon Watkins , Professor Pier , Liam Bullard , Algorithms Models , Calculations Problem Solving , Technology Engineering Computer Science , Robotry Artificial Intelligence , சிமோன் வாட்கின்ஸ் , ஜியோஃப் டர்ஹாம் , விண்வெளி ஆராய்ச்சி மைய , விண்வெளி பொறியியல் , தொழில்துறை ஆராய்ச்சி ஆர்கநைஸேஶந் , காமன்வெல்த் அறிவியல் , ப்ரொஃபெஸர் சிமோன் வாட்கின்ஸ் , ப்ரொஃபெஸர் கப்பல் , லியாம் புல்லார்ட் , கணக்கீடுகள் ப்ராப்லம் தீர்க்கும் ,

Drone Propellers Get Quieter


Researchers have published a study revealing their successful approach to designing much quieter propellers.
The Australian research team used machine learning to design their propellers, then 3D printed several of the most promising prototypes for experimental acoustic testing at the Commonwealth Scientific and Industrial Research Organization s specialized echo-free chamber.
Results now published in 
Aerospace Research Central show the prototypes made around 15dB less noise than commercially available propellers, validating the team s design methodology.
RMIT University aerospace engineer and lead researcher Dr. Abdulghani Mohamed said the impressive results were enabled by two key innovations - the numerical algorithms developed to design the propellers and their consideration of how noise is perceived in the human ear - as part of the testing. ....

Woutijn Baars , Abdulghani Mohamed , Simon Watkins , Geoff Durham , Robert Carrese , Aerospace Research Central , Aerospace Engineering , Industrial Research Organization , Commonwealth Scientific , Professor Simon Watkins , Professor Pier , Liam Bullard , சிமோன் வாட்கின்ஸ் , ஜியோஃப் டர்ஹாம் , விண்வெளி ஆராய்ச்சி மைய , விண்வெளி பொறியியல் , தொழில்துறை ஆராய்ச்சி ஆர்கநைஸேஶந் , காமன்வெல்த் அறிவியல் , ப்ரொஃபெஸர் சிமோன் வாட்கின்ஸ் , ப்ரொஃபெஸர் கப்பல் , லியாம் புல்லார்ட் ,

NASA's Ingenuity helicopter could pave way for future rover-drone tandem missions


NASA s Ingenuity helicopter could pave way for future rover-drone tandem missions
Over the course of its mission, Ingenuity is expected to make five attempted flights each lasting for about 90 seconds at a stretch.
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This NASA photo shows members of NASA’s Perseverance rover team as they react in mission control after receiving confirmation the spacecraft successfully touched down on Mars| AFP
By PTI
NEW DELHI: With the successful landing of its Perseverance Mars rover on Friday, NASA is set to become the first global space agency to fly a drone in the atmosphere of another planet, an advance which could pave the way for future tandem-exploration missions that include new terrestrial and aerial surveillance methods. ....

West Bengal , United States , Goutam Chattopadhyay , Dibyendu Nandi , J Bob Balaram , Propulsion Laboratory , Aerospace Research Central , American Institute Of Aeronautics , Senior Research Scientist , Perseverance Mars , American Institute , Astronautics Scitech , Red Planet , Indian Institutes , Science Education , Nasa Perseverance Rover , Nasa Mars Mission , மேற்கு பெங்கல் , ஒன்றுபட்டது மாநிலங்களில் , கௌதம் சாட்டொபடியாய் , தீபயெந்டு நந்தி , ஜு பாப் பலராம் , ப்ரொபல்ஶந் ஆய்வகம் , விண்வெளி ஆராய்ச்சி மைய , அமெரிக்கன் நிறுவனம் ஆஃப் வான்செலவுத்துறை , மூத்தவர் ஆராய்ச்சி விஞ்ஞானி ,

NASA plans to send drone after landing rover on Mars - मंगल पर रोवर उतराने के बाद अब ड्रोन भेजने की योजना बना रहा NASA