Holonomic Elastoplastic Truss Design using Displacement Based Optimization

Holonomic Elastoplastic Truss Design Using Displacement Based Optimization

Abstract:-

A Displacement Based Optimization (DBO) methodology was connected to truss outline issues with material nonlinearities, to investigate practicality and check effectiveness of the way to deal with take care of such issue. Different truss estimating issues with holonomic (way autonomous) elasto-plastic laws were explored. This sort of material nonlinearity permits us to normally develop the straight flexible truss estimating in the DBO setting to nonlinear issues. Continue reading Holonomic Elastoplastic Truss Design using Displacement Based Optimization

Coupled CFD/CSD Investigation of the Effects of Leading Edge Slat on Rotor Performance

Abstract :-
This is Aerospace engineering project work on Coupled CFD/CSD Investigation. A coupled Computational Fluid Dynamic (CFD) and Computational Structural Dynamics (CSD) methodology is extended to research the effectiveness of a number one edge slat (LE-Slat) for mitigating the adverse effects of dynamic stall on aerofoil mechanics and dynamic response. This concerned the subsequent enhancements over the present CFD methodologyology to handle a multi-element device rotor: incorporating Continue reading Coupled CFD/CSD Investigation of the Effects of Leading Edge Slat on Rotor Performance

Multi-Mode Magnetorheological Axial Isolator

Abstract: MR dampers are semi-active devices that are finding success where controllable damping is required. The goal of this work is to determine a suitable design of a six-degree-of-freedom MR isolator for vibration attenuation of a sensor platform and characterize its axial performance through experiments as well as theoretical modeling. This investigation is begun by developing several MR designs and through experiment a single design is chosen for further analysis. Continue reading Multi-Mode Magnetorheological Axial Isolator

Wind Tunnel Blockage Corrections for Propellers

Abstract :-
For this thesis, powered propeller data was gathered in two wind tunnels of significantly different size. The Glauert correction, Hackett-Wilsden correction, and one of the newest corrections, developed by Sørensen and Mikkelsen, was applied to the data. Additionally, predictions of the pressure change in the tunnel due to the energy of the propeller were calculated. The data, when corrected using each method, are essentially identical up to a thrust coefficient of approximately 1.2. Beyond this value, the correction data begins to diverge. The pressure predictions are inaccurate when compared to experimental data and it is suggested that this be an area for further study. Continue reading Wind Tunnel Blockage Corrections for Propellers

Stability & Control Modeling of Tiltrotor Aircraft

Abstract :-
This thesis develops a simple open-source model of a tiltrotor using the basic equations of motion. The model focused on stability and control aspects of the XV-15 aircraft using simple linear analysis and, in general, did not add in correction or scaling factors to obtain a better match with flight data. Subsequent analysis performed included a trim and time history solution. A linearized state space model was also developed and analyzed using state space matrices, Bode plots, and eigenvalue analysis. The results were validated against generic tiltrotor simulation model results and compared to flight test where available. Continue reading Stability & Control Modeling of Tiltrotor Aircraft

Design &Testing of a Galfenol Tactile Sensor Array

Abstract :-
This thesis seeks to determine if Galfenol can be used to develop a 2-dimensional array of force sensors as part of a 3-D magnetic circuit that, if properly scaled, could mimic the tactile force sensing capabilities needed for use in robotic grippers, prosthetic devices, and robotic surgery. This concept takes advantage of the fact that Galfenol is not brittle and its permeability has high sensitivity to mechanical loads. Continue reading Design &Testing of a Galfenol Tactile Sensor Array