A University of Manchester PhD student has developed a prototype flexible heat shield for spacecraft that could reduce the cost of space travel and even aid future space missions to Mars.
Heat shields are essentially used as the brakes to stop spacecraft burning up and crashing on entry and re-entry into a planet’s atmosphere. This design is the first in the world to utilise centrifugal forces that stiffen lightweight materials to prevent burnup.
Current spacecraft heat shield methods include huge inflatables and mechanically deployed structures that are often heavy and complicated to use.
Rui Wu, from Manchester’s School of Mechanical, Aerospace and Civil Engineering, says as well as being lightweight in design is prototype is also “self-regulating”. This means there is no need for any additional machinery, reducing the weight of spacecraft even further and allowing for low-cost scientific research and recovery of rocket parts.
He says: “Spacecraft for future missions must be larger and heavier than ever before, meaning that heat shields will become increasingly too large to manage.”
To address this demand Wu and his team have developed a flexible heat shield that is shaped like a skirt and spins like a sycamore seed. Planets with atmospheres, such as Earth and Mars, allow spacecraft to utilise aerodynamic drag to slow down and the prototype’s design uses this to enable atmospheric entry.
“This is similar to high board diving, where the drag from water decelerates your body before you reach the bottom of the swimming pool,” Wu explains.
Spacecraft for future missions must be larger and heavier than ever before, meaning that heat shields will become increasingly too large to manage.
The fast entry into Earth’s atmosphere generates so much heat – over 10,000 ?C – that the air around the spacecraft can burn into plasma. For safe atmospheric entry, spacecraft need a front end, or shield, that tolerates high heat as well as an aerodynamic shape that generates drag.
However, Unlike Earth, the Martian atmosphere is very thin. “If Earth re-entry is like diving into thick honey, Mars entry would be like diving into water,” Wu says.
To carry heavy equipment and astronauts, a high drag area is needed. When entering Earth’s or Mars’ atmospheres, spacecraft require highly designed shields to avoid burnup, generate drag, and support heavy loads. Wu’s design potentially solves both issues.
The prototype is made of a flexible material that allows for easy storage on board spacecraft. This material, while foldable, is strong and has a high temperature tolerance. The shield is also stitched along a special pattern that allows it to spin up during flight, inducing centrifugal force.
Wu sees his design helping with space-based scientific research and rescue missions in the future. He adds: “More and more research is being conducted in space, but this is usually very expensive and the equipment has to share a ride with other vehicles.
“Since this prototype is lightweight and flexible enough for use on smaller satellites, research could be made easier and cheaper. The heat shield would also help save cost in recovery missions, as its high induced drag reduces the amount of fuel burned upon re-entry.”
The Latest on: Space exploration
via Google News
The Latest on: Space exploration
- People Unaware and Concerned When it Comes to Space, Finds Landmark Report by Inmarsaton June 29, 2022 at 4:01 pm
Across all ages, 1 in 3 globally ‘excited’ about space, with 1 in 9 ‘terrified’, and 1 in 5 ‘nervous’; 97 per cent see space as a threat, with space junk and climate change main concerns BRASÍLIA, ...
- NASA Says They Can Grow Food In Space Without Soilon June 29, 2022 at 3:56 pm
As humanity's exploration of space continues, NASA is looking for ways to provide astronauts with nutrients in a long-lasting, easily absorbed form. The best way to do that is with freshly grown ...
- NASA just launched a tiny cubesat. Here's why it's a huge step for space explorationon June 29, 2022 at 10:19 am
The historic mission just launched atop a Rocket Lab Electron booster. Rocket Lab launched NASA's tiny CAPSTONE spacecraft on a months-long trip to the Moon. It launched yesterday, June 28, atop a ...
- Flores leads human exploration development officeon June 29, 2022 at 8:25 am
Flores will oversee management and implementation of Marshall’s work portfolio in the areas of human exploration and transportation projects; habitation systems; payload and mission operations and ...
- Louisville students get taste of space exploration with NASA Astro Campon June 27, 2022 at 12:01 pm
Students at Holy Cross High School in Louisville are getting a taste of space exploration. "We're doing NASA's Astro Camp," explained Chris Wall, one of the organizers of the camp. "We are Central ...
- Space exploration: from the first missions to millionaire tourismon June 27, 2022 at 8:51 am
The conquest of space in fiction Literature anticipated space exploration before it happened. In the 19th century, the French novelist Jules Verne published 'From the Earth to the Moon' and 'Around ...
- AWS And Axiom Are Showing The Future Of Commercial Space Exploration With AWS Snowconeon June 23, 2022 at 7:18 pm
Ranked Industry Analyst Patrick Moorhead dives into AWS's collaboration with Axiom to operate an edge compute and storage AWS Snowcone on the International Space Station.
- Space Exploration Game 'No Man’s Sky' Is Coming to Nintendo Switchon June 23, 2022 at 11:54 am
Science fiction exploration game No Man’s Sky will be released for the Nintendo Switch. Hailing from British developer Hello Games, the game was initially released globally for the PlayStation 4 and ...
- AI in Space Exploration Market Analysis, Size, Share, and Forecasts to 2026on June 23, 2022 at 9:38 am
The latest research report on AI in Space Exploration market provides a complete investigation of the current and future scenario of this industry domain. It highlights the major trends and avenues ...
via Bing News