Browsing Rensselaer Libraries by Subject "Mechanical engineering"
Now showing items 1-20 of 424
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A block-preconditioned Jacobian-free multiscale method
(Rensselaer Polytechnic Institute, Troy, NY, 2011-12) -
A comparison of 2 methods for FEM simulations of discretized polycrystals
(Rensselaer Polytechnic Institute, Troy, NY, 2009-12) -
A concurrent multiscale method for coupling atomistic and continuum at finite temperatures
(Rensselaer Polytechnic Institute, Troy, NY, 2009-08) -
A contract based approach to collision avoidance for UAVs
(Rensselaer Polytechnic Institute, Troy, NY, 2020-08)Unmanned Aerial Vehicles (UAV) are becoming widespread and making them autonomous is the next big milestone. To control UAVs, a Guidance-Navigation-Controller (GNC) architecture is commonly used. The UAV subsystems may ... -
A distributed octree structure and algorithms for parallel mesh generation
(Rensselaer Polytechnic Institute, Troy, NY, 1998-12)An octree is a hierarchical data structure which is used to recursively subdivide a cubic universe into finer resolution levels. Octrees are an effective means to control element sizes which meet apriori mesh size ... -
A dynamic high-order variational multiscale method on unstructured meshes for transport problems
(Rensselaer Polytechnic Institute, Troy, NY, 2021-08)It is well known that the Galerkin method yields a solution with numerical/spurious oscillations in advection-dominated transport problems.Specifically when the cell Peclet or Reynolds number is high with an under resolution ... -
A finite element approach of deriving the von Mises, shear, and contact stresses of double shear-plane revolute joints in the elastic domain
(Rensselaer Polytechnic Institute, Troy, NY, 2014-12)The current engineering community uses finite element analyses in the development and design of double shear-plane clevis connections. Although accurate, finite element analyses of this nature are non-linear in nature, ... -
A finite element scheme for fully-coupled fluid-structure interactions and its application to human vocal folds vibration during phonation
(Rensselaer Polytechnic Institute, Troy, NY, 2012-05) -
A fundamental study of transient processes in microscale flow boiling heat transfer
(Rensselaer Polytechnic Institute, Troy, NY, 2015-08)In this work, experimental methods, data processing technique, and results along this vein are presented. With a new microdevice architecture, synchronized temperature and high-speed camera footage several interactions ... -
A generalized constrained dynamics method for interactive computing
(Rensselaer Polytechnic Institute, Troy, NY, 2020-12)Virtual reality (VR) is a simulated interactive experience similar to the real world that has been increasingly popular for research and applications in recent decades. A typical virtual reality environment usually involves ... -
A high-order and efficient numerical algorithm for conjugate heat transfer problems
(Rensselaer Polytechnic Institute, Troy, NY, 2018-08)To improve numerical schemes associated with CHT problem, we first restrict our consideration to CHT problems involving only heat transfer, as for example in solids. Then we describe a new partitioned approach for solving ... -
A machine learning approach to trajectory planning for unmanned aerial vehicles
(Rensselaer Polytechnic Institute, Troy, NY, 2020-08)Towards this goal, we first create dynamic models of quadcopters and then construct typical optimization problems for time-optimal trajectory generation based on the proposed dynamic model. The formulated optimization ... -
A micro-milling study of Al-4043 workpieces built using wire arc additive manufacturing (WAAM)
(Rensselaer Polytechnic Institute, Troy, NY, 2020-08)Wire arc additive manufacturing (WAAM) is a direct-energy deposition, metal additive manufacturing process. Due to the thermal cycling of the workpiece between deposited layers, microstructural variations exist, which are ... -
A mixed LES model based on the residual-based variational multiscale formulation
(Rensselaer Polytechnic Institute, Troy, NY, 2010-12) -
A multiscale study revealing the interplay between tumor growth and the three-dimensional extracellular matrix
(Rensselaer Polytechnic Institute, Troy, NY, 2019-12)To study biological processes of cancer progression is not an easy task – effort has been made to develop novel in vitro platforms that recapitulate physical features of the tumor microenvironment (TME) for cancer research. ... -
A new manufacturing process for biocomposite sandwich parts using a myceliated core, natural reinforcement and infused bioresin
(Rensselaer Polytechnic Institute, Troy, NY, 2015-12)Key aspects, process parameter effects and sensitivities and design models of the seven manufacturing steps were investigated and developed further. It was determined that the number of reinforcement plies should be ... -
A novel active air cooling strategy for large-scale Lithium-ion battery energy storage systems
(Rensselaer Polytechnic Institute, Troy, NY, 2012-05) -
A novel rate-objective model for the large-scale simulation of temperature dependent inelasticity phenomena
(Rensselaer Polytechnic Institute, Troy, NY, 2017-08)We apply this workflow in modeling and analyzing the evolution of stresses of solder joints arrays in the flip chip manufacturing process in microelectronics fabrication. We also conduct a variety of simulations of solder ... -
A numerical study of the heat transfer due to an array of submerged jets impinging on a moving surface
(Rensselaer Polytechnic Institute, Troy, NY, 2001-12)In the laminar range, a correlation for the average Nusselt number is derived and entrance effects are addressed. The average heat transfer coefficient on a stationary plate varies approximately as the Reo0.558 and the ... -
A parallel and adaptive interface tracking approach for evolving geometry problems
(Rensselaer Polytechnic Institute, Troy, NY, 2019-12)Numerical simulations employing an interface tracking approach are desired in many evolving-geometry applications, particularly those involving fluid-structure and/or multiphase interactions with moving boundaries/interfaces. ...