Articles tagged with Torque
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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.
Researchers propose a novel analytical model that considers multiple nonlinear factors in motor performance calculation, reducing errors caused by magnetic saturation. The new method significantly improves design efficiency and prediction accuracy, cutting development time and cost.
Harvard physicists develop an optical vortex beam that twists and changes shape, resembling spiral shapes found in nature. The 'optical rotatum' has potential applications in controlling small particles and micro-manipulation, and its creation is made possible with a single liquid crystal display.
Researchers designed a hopping robot based on studies of leaping squirrels, which can stick a landing on narrow perches. The robot uses strategies similar to those employed by squirrels when landing, including directing force through the shoulder joint and grasping the branch with its feet.
Researchers at Tohoku University have achieved a significant advancement in opto-magnetic technology, observing an opto-magnetic torque approximately five times more efficient than in conventional magnets. This breakthrough enables the production of opto-magnetic effects with only one-fifth of the previous light intensity.
Researchers created a 'Hyperelastic Torque Reversal Mechanism' that enables fast and powerful movements in soft robots made from rubber-like materials. The mechanism leverages the characteristics of soft hyperelastic materials to rapidly stiffen as they compress, allowing for rapid and efficient movement.
A proposed speed loop pseudo derivative feedforward (PDFF) controller-based direct torque controller for a PMSM drive reduces oscillations and overshoots. Simulation results show the dynamic performance of the proposed system is superior to PI controllers, with less overrun and improved stability.
Researchers at Tohoku University have developed a model predicting torque generated from electrical stimulation in stick insect leg muscles, allowing for precise control of insect movement. The study's findings have the potential to refine motor control of tuned biohybrid robots and enable adaptable devices with various applications.
Lehigh University researchers have discovered that applying magnetic forces to individual 'microroller' particles can spur collective motion, allowing the grains to flow uphill, up walls, and climb stairs. This counterintuitive phenomenon has potential applications in mixing, segregating materials, and microrobotics.
Researchers at KAUST have developed acoustic tweezers that use spinning sound waves to manipulate ultrasmall objects with precision. This technology has the potential to enable precise control of submillimeter objects in opaque media, such as soft biological tissues.
A team of researchers from Shinshu University has developed a precise numerical model of butterfly flight dynamics, revealing the intricate relationship between wing movement and air flow. The study's findings have significant implications for designing micro air vehicles (MAVs), which could lead to breakthroughs in aerospace engineering.
A new imaging technique has been developed to identify non-ferromagnetic projectiles that are safe for MRI, enabling patients with ballistic embedded fragments to receive medical treatment. The technique uses radiography and CT images to distinguish between ferromagnetic and non-ferromagnetic bullets, allowing for safer MRI scans.
Researchers developed a personalized exoskeleton system that reduces energy expenditure during walking by 24%, on average. The system subtly changes its pattern of assistance based on individual energy expenditure patterns, leading to further reductions in energy expenditure with repeated use.
Researchers at PPPL and General Atomics simulated a self-organized flow of superhot plasma that fuels fusion reactions. The findings show that sufficient heating can drive instabilities leading to plasma rotation, which may be used to improve fusion device performance. High-energy beams traditionally injected into the plasma are replac...
A study from Hospital for Special Surgery found that arm slot, arm speed and shoulder rotation are significantly related to elbow varus torque, a key factor in UCL injuries. The research used advanced technology to analyze throwing biomechanics in real-game settings, providing new insights into injury prevention.
Researchers at Osaka University used electron cryomicroscopy to study flagellar motors, revealing that small changes in amino acids can significantly impact function. The discovery provides insight into constructing synthetic nanomachines with similar properties.
Researchers discover 'reactive effort' in sign languages, where movements produce torque on the torso, and find that vocabulary avoids signs requiring extra reactive effort. This biological universal sheds light on language and physical activity.
Researchers have created a model microscopic system to demonstrate torque transmission at the nanoscale, overcoming thermal fluctuations and energy dissipation. The device uses colloidal particles to transfer rotational motion, revealing new transmission phenomena not seen in macroscopic machines.