1 / 21

Engineering Mechanics The Mother of all Engineering

Engineering Mechanics The Mother of all Engineering. Ok … most of engineering Like: Mechanical, Aero, Civil, Chemical, Mining, Mechanics is the basis for most of the engineering disciplines Motion Solids and Materials Fluids Biomechanics. What is Engineering?.

kaoru
Download Presentation

Engineering Mechanics The Mother of all Engineering

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Engineering MechanicsThe Mother of all Engineering • Ok … most of engineering Like: Mechanical, Aero, Civil, Chemical, Mining, Mechanics is the basis for most of the engineering disciplines • Motion • Solids and Materials • Fluids • Biomechanics

  2. What is Engineering? • Engineering: the process of developing and making a thing • Science is concerned with understanding the world as it is • Engineers are problem solvers: people who search for quicker, better, less expensive ways to use forces and materials of nature to meet tough challenges

  3. Motion: Dynamics, Flight Control, Vibrations, Wave Propagations Mode # 0: Rigid Mode # 1: 0.69 Hz In plan bending Mode # 2: 1.67 Hz Mode # 3: 4.70 Hz Mode # 4: 5.69 Hz

  4. Students Faculty Solids Strength of materials, structures, composites Two beams were removed after 15 months of service to assess remaining strength and stiffness

  5. Prototype Composite Bridge Deck

  6. Troutville, VA Weigh Station Interstate 81 8,000 vehicles/day FRP Deck In-Service

  7. Structural Composite Fire Analysis NIST FDS Fire Simulation Thermal boundary conditions • Thermal Mechanical Property Evolution • Elastic property evolution • Compression micromechanics • Visco elastic/plastic effects Click to play movie Load • Fire-Load Simulation of Structural Bulkhead • Packaging of mechanics and property evolution with user defined subroutines • Trial modeling efforts Fire Structural FEA Implementation

  8. Fluid Mechanics Aerodynamics, Internal Flow, Supersonics, Computational Methods, Experimental Techniques

  9. The general unsteady vortex-lattice method (VLM) • Two Types of Vortex Sheets ( Bound-Vortex and Free-Vortex) • VLM accounts for – Deformation of wakes – Aerodynamic interference of the components of the configuration. C.P.

  10. The general unsteady vortex-lattice method • VLM is not restricted by – Planform –Camber –Twist – Dihedral angle – Sink rate – Angle of attack, etc. Free-Vortex Sheets Bound-Vortex Sheets

  11. Longbow Wind Turbine Aaron Barr, Enoch Dames, Kai Zuehlke Advisor: Dr. Ishwar Puri Goal: To Improve the design of a 900W upward-furling wind turbine. The existing Lakota, manufactured by Aeromax Corporation, features external furling springs and an electrical conduit that are prone to weathering. The enlarged Longbow design will incorporate these functions within a protective housing and allow room for additional components. Design Overview: Design an internal torsion-spring furling system Redesign upper and lower housings Fluids and mechanics analysis of turbine during furling Structural and thermal FEA of housing designs Internalize wiring Improve serviceability Add a composite dome to enclose new circuitry Retain time-tested Lakota components Install a Lakota turbine for additional testing of existing design

  12. Unsteady Jet at Leading Edge of Supersonic Aircraft

  13. Proposed Hitchhiker Demonstration Program VISTA F-16

  14. Delta Wing Vortex Breakdown

  15. Poly-dispersed Multi-Phase flows • Separation of phases based on size • Cross correlation based PIV used to measure velocity of flow • Particle tracking used to measure Particle and Bubble velocities

  16. The Design

  17. Biomechanics • Musculosceletal • Biofluids • Cardiovascular Hemodynamics • Mechanical Heart Valves • Heart simulators • Stents • Left Ventricle • Workhorse of the Heart • Mitral Valve • Aortic Valve

  18. The Design

  19. Vortex Formation From Mechanical Valve Leaflets

  20. What is Engineering Science and Mechanics? • Often called the “engineer’s engineering” • You’ll focus on the principles of mechanics that form the foundation of disciplines such as aerospace, civil, mechanical, and even chemical engineering • You’ll use advanced mathematics and analysis to understand and derive models for phenomena such as fluid flow, vibration, and structural behaviors • You’ll develop new technologies and solve current (and future) engineering problems

More Related