Articles tagged with Mechanical Engineering
Researchers at Nanjing University of Aeronautics and Astronautics created an active metal metamaterial that can bend and recover its shape, enabling aircraft wings to morph smoothly in flight. The material is lightweight, strong, and capable of adjusting its shape on demand.
A reconfigurable optical computing platform based on a double-layer liquid crystal structure has been developed to enable multifunctional all-optical image processing. The platform integrates eight types of image processing functions in one go, including bright-field imaging, vortex filtering and edge enhancement, promising substantial...
Scientists develop corrosion-resistant alumina-forming ferritic alloys that exhibit outstanding mechanical properties and oxidation resistance, potentially transforming energy systems and nuclear reactors. These materials offer economic feasibility while maintaining high reliability and could accelerate adoption in practical applications.
A study by Chongqing University of Posts and Telecommunications proposes a modality fusion strategy to enhance visualization-inertial trajectory localization. The approach leverages attention mechanisms and cross-modal communication, achieving robust accuracy in complex environments.
Researchers at Pusan National University have discovered a new, faster method for treating lightweight magnesium metals using electropulsing technology. The technique, which involves applying electric pulses to the metal, can accelerate grain growth and improve mechanical properties.
A team of researchers developed a multi-material, multi-module microrobot that can grab, carry and release microscopic objects. The microrobot features two parts: one reacts to pH changes to grip an object, while the other responds to magnetic fields for movement.
Researchers have developed ultrafine 3D printing nozzles inspired by mosquito feeding tubes, which can produce complex structures with high precision. This innovative technology has the potential to transform various industries, including manufacturing and biomedical engineering, by providing an environmentally friendly alternative.
An AI-driven robotic assembly system allows people to build physical objects by simply describing them in words. The system uses generative AI models to build a 3D representation of an object's geometry based on the user's prompt, and then iterates on the design based on feedback from the user.
A Harvard-designed bio-logger captures high-fidelity audio of sperm whale codas, which are later analyzed by machine learning models to uncover structured communication. Recent results show that sperm whales have their own alphabet and use vowels and diphthongs in their language.
Eight SwRI hydrogen projects funded by ENERGYWERX will evaluate new technology and existing infrastructure for a hydrogen-powered future. The projects, conducted at SwRI's Metering Research Facility, aim to improve energy infrastructure and support the use of clean-burning fuel.
A new robotic design uses vine-like structures to lift and grasp a variety of objects, including humans, with a gentler approach. The robot can snake around obstacles, squeeze through tight spaces, and even secure itself in a closed loop to create a sling.
A breakthrough AI system called OmniPredict can predict human pedestrian behaviors with unprecedented accuracy, revolutionizing self-driving cars and urban mobility. The model combines visual cues with contextual information to anticipate pedestrians' next moves, reducing the risk of accidents and improving traffic safety.
Researchers developed instance-adaptive scaling framework that uses process reward model to estimate difficulty of question, enabling LLMs to spend more compute on promising solution paths. This approach achieves comparable accuracy with existing methods while reducing computational cost by up to one-half.
Scientists at Tsinghua University introduce a new technique to carve complex shapes on material surfaces, enabling more design freedom and efficiency in surface design. The method uses high-speed vibrations to create convex microstructures that can change how a surface interacts with its environment.
The upgraded facility enables efficient testing of equipment moving heavy oils, addressing the growing need for advanced gas separation technologies. SwRI's expanded High-Viscosity Flow Loop offers a more comprehensive solution, allowing for cost-effective and efficient testing of pumps in extremely viscous conditions.
MIT engineers developed artificial tendons made from hydrogel to connect lab-grown muscles with robotic skeletons. The tendons improved the robot's motion and force output by three times, enabling faster and more efficient biohybrid robots.
A behavioral study analyzed toilet use in Cambodia and found that households struggled to follow recommended guidelines for maintaining a smart toilet system. Only 40% of respondents could recall key details, highlighting the need for user education and support.
MIT engineers have developed an ultrasonic device that vibrates at high frequency to shake out water molecules from a material, recovering clean drinking water in minutes. This design is 45 times more efficient than existing heat-based systems, which can take hours or days.
The upgraded engine features a state-of-the-art turbocharger, increasing peak torque from 1,494 to 1,760-foot pounds and peak power from 370 to 440 horsepower. The engine's peak efficiency has also improved to 44.0%, class-leading for a spark-ignited engine.
The new facility can test thermal performance of heat exchangers and cooling equipment up to five megawatts, supporting the growing $30 billion data center cooling industry. SwRI offers customized testing services, including coolant distribution units and secondary side pumps, and replicates real-world conditions.
Researchers at ETH Zurich developed microrobots that can navigate blood vessels with precision, delivering drugs directly to the target location. The robots use magnetic nanoparticles and advanced navigation systems to avoid obstacles and reach their destination.
The University of Maine has launched internships in AI and digital twins to prepare students for careers in the growing blue economy. Students will work with real-time data, build virtual replicas of ocean structures, and test complex marine scenarios.
Researchers at UC Davis invent a Stirling engine that can harness the natural warmth of the ground and cold depths of space to generate mechanical power. The device has been shown to produce up to 400 milliwatts of power per square meter, with potential applications in ventilating greenhouses and residential buildings.
The upgraded facility enables testing of hydrogen-natural gas blends, exploring effects on pipeline systems and flow measurement technologies. SwRI aims to demonstrate the process needed to upgrade natural gas infrastructure to accommodate hydrogen, supporting efforts to decarbonize industries.
Researchers used molecular dynamics simulations to investigate how polyamides adhere to alumina surfaces, finding that adhesion strength depends on polymer chemistry and surface termination. The study offers practical design guidelines for selecting surface treatments and polymer types, enabling the creation of stronger, lighter joints.
Researchers from Chung-Ang University have developed a novel AI-based approach for producing high-fidelity and defect-aware ultrasonic images, outperforming traditional techniques. This technology has the potential to revolutionize non-destructive testing in industries such as semiconductors, energy, and automotive.
The Aerospace Team Graz took first place at the European Rocketry Challenge in Portugal with its ISPIDA hybrid rocket, scoring 938 out of 1000 points. The team's success was attributed to its strong interdisciplinary collaboration and expertise in rocket design and propulsion systems.
Researchers at Purdue University have developed an optical technique to observe individual particles in a battery charging, enabling the analysis of heterogeneity in composite electrodes. This breakthrough allows for the creation of better batteries by understanding the distribution of charge within the electrode.
A team of researchers has developed an artificial retina model using 3D printing technology, which closely replicates the pathological microenvironment of retinal vein occlusion. The model exhibited responses similar to those observed in clinical cases, validating its potential as a preclinical drug evaluation system.
Researchers at South China University of Technology develop a method to solve unstable anode:electrolyte interfaces using digital light processing (DLP) 3D printing. The resulting batteries retain over 91% capacity after 8,000 cycles and achieve stable cycling over 2,000 hours.
Researchers at Hanbat National University have developed a game-changing heat shield technology that provides dual-layer protection for high-temperature alloys. The sequential B-Si coating technology allows these alloys to withstand extremely high temperatures, potentially transforming the aviation industry.
Researchers developed a novel bio-inspired isolator inspired by the seahorse exoskeleton, which converts linear motion into torsional motion to provide excellent low-frequency isolation performance. The structure achieves a minimum resonant frequency of 1.5 Hz and can be adjusted to expand its isolation range.
Researchers developed a non-destructive testing system using bubble wrap bursts, detecting objects within a 2% error margin without electricity or heavy equipment. The system harnesses the acoustic characteristics of bubble wrap bursts to identify internal obstructions in pipes.
Southwest Research Institute (SwRI) will predict F-16 landing gear component lifespan and recommend maintenance improvements under a $9.9 million contract. The seven-year agreement leverages SwRI's aging aircraft expertise in probabilistic analysis, fatigue testing.
Researchers develop highly tunable spatial heterostructure within pure titanium using mechanical milling and laser powder bed fusion, achieving strength-plasticity synergy and overcoming the strength-plasticity trade-off bottleneck. The resulting harmonic heterostructure endows pure Ti implants with excellent wear resistance.
Computational models now accurately represent very weak shock waves, which are crucial in flows involving shock waves. The final state of a moving shock wave can be classified into three regimes: dissipated, transitional and thinly captured.
The UT Dallas researchers have developed a technology that enables same-day, 3D-printed dental restorations made of zirconia, the gold-standard material for permanent dental work. This breakthrough could make same-day permanent dental restorations possible with a reduced debinding time from hours to less than 30 minutes.
Researchers developed a method to trigger magnetic jamming in materials using wireless magnetic fields, enabling reversible and programmable clumping. This technique allows for the creation of structures that can assemble, stiffen, relax, or break apart under magnetic control.
Dr. Bueno, a lead engineer at SwRI's Computational Mechanics Section, has been recognized for his work on supersonic and hypersonic aerodynamics, turbulence, and renewable energy. He developed patented heat storage systems and advanced optical diagnostic imaging tools to study high-speed flows.
Researchers at North Carolina State University created a class of robots called metabots that can change shape and adapt to different environments. The devices can execute various actions despite having no motor or being made of a single flat material.
A team of engineers at Harvard John A. Paulson School of Engineering and Applied Sciences designed a proof-of-concept walking robot using only four moving parts connected by rubber bands and powered by one motor. The robot can find its way through mazes, avoid obstacles, and sort objects by mass without electronic control systems.
Researchers developed a soft robotic skin that allows vine robots to navigate convoluted paths and fragile environments. The robot is steered by controlling the pressure inside its body and temperature of the actuators.
Dr. Chris Thomas recognized for technical excellence and leadership in combustion technologies, including propulsion systems and battery safety. His research has led to significant contributions to the field of blast physics and lithium-ion battery safety.
A polymer 'Chinese lantern' structure can snap into multiple curved shapes, controlled by a magnetic field. Researchers developed a mathematical model to program the shape and energy release, enabling diverse applications such as non-invasive grippers and filter systems.
Researchers developed a new control algorithm that enables powered knee prostheses to mimic natural human motion, reducing tripping risks and strain on users' bodies. The study showed significant improvements in activities of daily living, such as sitting, standing, walking, and climbing stairs.
The University of Texas at Dallas has received a five-year, $500,000 National Science Foundation grant to support AI-powered projects in wind energy research. The grant will fund projects that incorporate artificial intelligence to minimize manufacturing defects and predict turbine component conditions.
MIT engineers have developed a novel palladium membrane that remains stable at high temperatures, enabling more energy-efficient and cheaper production of hydrogen fuel. The new design allows for the separation of hydrogen from gas mixtures at much higher temperatures than conventional membranes.
A new type of parachute made from a plastic sheet cut in a kirigami pattern has been developed by Polytechnique Montréal researchers, with characteristics useful for humanitarian aid deliveries and potentially scalable for larger applications. The parachute quickly stabilizes and follows a strict ballistic descent trajectory.
Researchers at Purdue University have developed fidget-controlled robots that utilize metastability to create soft robotic systems. These robots use bistable domes to perform tasks such as grasping and classifying objects, demonstrating the potential for physical systems to replace electronic components in challenging environments.
The SWiM project aims to develop intelligent and sustainable cooling systems that can reduce energy consumption in large cities by up to 30%. The system will use district heating and cooling technologies, combining expertise from Singapore and Denmark.
A comprehensive safety assessment framework for liquid hydrogen storage systems in UAVs has been developed, addressing thermal performance and structural integrity challenges. The framework integrates multiple analyses, including thermal insulation, structural analysis, fatigue testing, and impact assessments.
Southwest Research Institute (SwRI) has completed its Center for Accelerating Materials and Processes (CAMP) facility, enabling faster production of high-speed propulsion systems. The new facility will focus on demonstrating more efficient techniques for manufacturing these systems.
Researchers at Rice University have developed a soft but strong metamaterial that can be controlled remotely to rapidly transform its size and shape. The new material is designed for implantable and ingestible medical devices and addresses critical safety concerns such as gastric ulcers and puncture injuries.
The SAGEST Predictive Simulation Center will develop simulation tools to give scientists confidence in exploring extreme physical conditions. The center, led by UVA's Xinfeng Gao, will use high-fidelity and low-fidelity solvers to balance accuracy and efficiency in predictions.
Quaise Energy has successfully demonstrated its groundbreaking geothermal drilling technology, achieving record-breaking depths and speeds. The company aims to revolutionize the energy sector by providing a reliable and sustainable source of clean energy.
Researchers will evaluate a patent-pending electrolyzer in simulated partial gravity environments aboard parabolic flights. The technology is designed to produce fuel, oxygen, and other life support compounds on the Moon or Mars for long-term human habitation.
A new study by Purdue University engineers warns that a nationwide switch to electric homes and vehicles could overwhelm the power supply, leading to increased risk of outages. However, key measures such as home insulation, equipment efficiency, and coordinated device operation can reduce costs by up to 40%.
Researchers at Ohio State University are developing a new nuclear thermal propulsion system, called the centrifugal nuclear thermal rocket (CNTR), which could potentially double an engine's efficiency. The CNTR concept aims to improve rocket performance while minimizing risk and enabling faster travel times to distant destinations.
A new USF study discovers that chameleons and salamanders use the same biological mechanism to fire their tongues at extreme speeds, with potential applications in biomedical devices and space retrieval tools. The researchers hope to expand their studies to examine how animal tongues retract with such speed and precision.
Tayfun Tezduyar's space-time computational flow analysis enables accurate modeling of complex systems, from designing parachutes for astronauts to simulating blood flow through heart valves. The approach provides high-fidelity representations in both space and time, allowing for more realistic solutions.