Results 61 to 70 of about 391,161 (334)

Jellyfish and Fish Solve the Challenges of Turning Dynamics Similarly to Achieve High Maneuverability

Fluids, 2020
Turning maneuvers by aquatic animals are essential for fundamental life functions such as finding food or mates while avoiding predation. However, turning requires resolution of a fundamental dilemma based in rotational mechanics: the force powering a ...
John O. Dabiri, Sean P. Colin, Brad J. Gemmell, Kelsey N. Lucas, Megan C. Leftwich, John H. Costello   +5 more
doaj   +1 more source

Analysis of Collected Data and Establishment of an Abnormal Data Detection Algorithm Using Principal Component Analysis and K-Nearest Neighbors for Predictive Maintenance of Ship Propulsion Engine [PDF]

, 2022
Jinkyu Park, Jungmo Oh
openalex   +1 more source

Propulsion Drive Models for Full Electric Marine Propulsion Systems [PDF]

2007 IEEE International Electric Machines & Drives Conference, 2007
Integrated full electric propulsion systems are being introduced across both civil and military marine sectors. Standard power system analysis packages cover electrical and electromagnetic components but have limited models of mechanical subsystems and their controllers.
Apsley, JM, Gonzalez-Villasenor, A, Barnes, M, Smith, AC, Williamson, S, Schuddebeurs, JD, Norman, PJ, Booth, CD, Burt, GM, McDonald, JR   +9 more
openaire   +5 more sources

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Ramjet Nozzle Analysis for Transport Aircraft Configuration for Sustained Hypersonic Flight

Applied Sciences, 2018
For the past several decades, research dealing with hypersonic flight regimes has been restricted mainly to military applications. Hypersonic transportation could be a possible and affordable solution to travel in the medium term and there is renewed ...
Raman Baidya, Apostolos Pesyridis, Maxim Cooper   +2 more
doaj   +1 more source

Enabling Digital Continuity in Virtual Manufacturing for Eco‐Efficiency Assessment of Lightweight Structures by Means of a Domain‐Specific Structural Mechanics Language: Requirements, Idea and Proof of Concept

Advanced Engineering Materials, EarlyView.
This article presents a solver‐agnostic domain‐specific language (DSL) for computational structural mechanics that strengthens interoperability in virtual product development. Using a hierarchical data model, the DSL enables seamless exchange between diverse simulation tools and numerical methods.
Martin Rädel, Andreas Schuster, Felix Schoenitz, Jean Lefèvre   +3 more
wiley   +1 more source

Investigating the Effects of Build Height on Mechanical Behavior of Large‐Scale Laser Wire Directed Energy Deposited Nickel Titanium Alloy

Advanced Engineering Materials, EarlyView.
Laser wire directed energy deposition process was leveraged to fabricate large scale NiTi alloy wall. Evaluation of build‐height‐dependent tribo‐mechanical properties revealed significant differences in location specific sample characteristics. The middle region achieved optimal performance (superior wear resistance, balanced strength‐ductility ...
Hyunsuk Choi, Prayag Burad, Piash Bhowmik, Vishal Mahey, Yashwanth Bandari, Sougata Roy   +5 more
wiley   +1 more source

Traction characteristics of tires of various designs for the complete set of mobile propulsion devices of the fifth traction class

Siberian Journal of Life Sciences and Agriculture
Background. Tire properties are the main factors determining traction and agricultural technological performance of wheeled mobile energy vehicles. Purpose.
Vladimir A. Kravchenko, Lyudmila V. Kravchenko, Izzet M. Melikov, Elnara S. Gasanova   +3 more
doaj   +1 more source

Challenges during Flash Lamp Annealing of Aerosol‐Deposited Barium Titanate Films

Advanced Engineering Materials, EarlyView.
Aerosol deposition is used to rapidly deposit barium titanate films with thicknesses ranging from 2 to 16 μm at room temperature, eliminating the need for further densification. However, to recover the electromechanical properties, annealing is required, which limits the usage of temperature‐sensitive substrates.
Michel Kuhfuß, Juliette Cardoletti, Udo R. Eckstein, Shaoxiong Xie, Alexander Martin, Ken‐ichi Kakimoto, Sebastjan Glinšek, Kyle G. Webber   +7 more
wiley   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

Advanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De, Giovanni Meli, Meysam Khalighian, Anahita Emami   +3 more
wiley   +1 more source