Tag: Mechanical Engineering
ROM-based data assimilation improved solar chimney temperature estimation
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in EngineeringWhat the study found A reduced-order data assimilation framework was able to reconstruct dynamic temperature fields in an inclined phase change material (PCM)-integrated solar chimney. The authors report that this approach also improved the estimation of airflow outlet velocity. Why the authors say this matters The authors state that the method is intended to improve…
Rigidity of many origami structures can be controlled by facet planarity
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in EngineeringWhat the study found The study found that the rigidity of many origami structures can be controlled by making selected facets planar or allowing them to relax. The authors also report that geometry, topology, and facet-selection rules affect how many degrees of freedom these structures have and when rigidity changes occur. Why the authors say…
Mechanical noise squeezing transferred between two modes
What the study found The study reports that mechanical noise squeezing was transferred between two mechanical modes using a single microwave cavity mode as the mediator. Why the authors say this matters The authors say that mechanical noise squeezing across multiple modes is important for precision measurements, and they describe the observed squeezing transfer as…
Bioinspired principles guide underwater soft robot design
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in EngineeringWhat the study found The study identifies four biological principles that guide the design of underwater soft robots: locomotion, compliant morphologies and materials, distributed sensing, and adaptive control. It also describes a bidirectional loop from biology to robotics and back, in which robots can be used as physical models to investigate biological mechanisms. Why the…
Optimized GMR-bobbing coil settings improved crack detection
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in EngineeringWhat the study found The optimized Giant magneto-resistive (GMR) Bobbing coil probe detected all axial and hole defects in a 60 mm carbon steel pipe under the reported best conditions. The study identified 6 GMR sensors, 2 mm lift-off, and 10 mm coil height as the optimum settings. Why the authors say this matters The…
Propane and carbon dioxide show promise as EV refrigerants
Comparison of Propane and CO2 as PFAS-compliant refrigerants for EV thermal management, demonstrating 25% range improvement in cold conditions with proper safety measures.
Brake pad materials differ in thermal and structural performance
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in EngineeringFinite element simulation of ceramic, semi-metallic, and non-asbestos organic brake pads reveals thermal, structural, and wear performance differences under braking conditions.
Chirality affects microcritical, not macrocritical, stability
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in MechanicsAnalysis of periodic lattice metamaterials with rigid joints shows chirality affects microscale stability but not macroscale stability, enabling tailored critical mode activation.
Proposed gearbox housing changes reduce lubricant loss
Research proposes design improvements for electric locomotive gearbox housings to enhance structural durability, reduce lubricant losses, and extend operational mileage without equipment replacement.
Co-pyrolysis improved pyro-diesel quality and generator performance
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in EngineeringCo-pyrolysis of palm fruit bunches and polypropylene produces engine-grade diesel fuel suitable for agricultural power generation without modification.
