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Browsing Mechanical engineering by Title
Now showing items 41-60 of 431
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Analysis of Thermoelectric Composites for Power Generation
Thermoelectric composites are promising for energy conversion between heat and electricity. However, due to the complexity of nonlinear thermoelectric coupling, the effective behavior of the thermoelectric composites have ... -
Analytical and Computational Modeling of Mechanical Waves in Microscale Granular Crystals: Nonlinearity and Rotational Dynamics
Granular media are one of the most common, yet least understood forms of matter on earth. The difficulties in understanding the physics of granular media stem from the fact that they are typically heterogeneous and highly ... -
Analytical and Numerical Study of Percussive Riveting Process
Percussive riveting is a dependable assembly method that produces high-quality joints in the aerospace industry. Its successful application is derived from its ease to implement in an assembly floor environment. The rivets ... -
Analytical Modeling and Applications of Residual Stresses Induced by Shot Peening
(2013-07-25)The complex response of metals to the shot peening process is described by many fields of study including elasticity, plasticity, contact mechanics, and fatigue. This dissertation consists of four unique contributions to ... -
Analytical Modeling of Piezo-SMA Composite as an Actuator and Energy Harvester
(2013-02-25)Piezoelectric materials and shape memory alloys (SMAs) are very common materials for actuators and sensors; however their composites as electrical generators are least explored, although the use of piezoelectric materials ... -
Analytical system dynamics
(1995)A unified approach for modeling engineering systems is presented for systems comprised of mechanical, electrical, fluid and thermal elements. The method of analysis is based on the energy methods of Lagrange, generalized ... -
Approaches to Particulate Matter Monitoring, Sampling and Analysis for Personal Exposure Evaluation
Aerosol is a suspension of airborne particles in the air or other gas. It is more commonly known as Particulate Matter (PM). Aerosols are ubiquitous throughout our environment in various forms, such as dust, fume, smog, ... -
Assessing and Enhancing the Functional and Structural Maturation of Human Pluripotent Stem-Cell Derived Cardiomyocytes with Engineered Microenvironments
There is great potential for human pluripotent stem cell derived cardiomyocytes (hPSC-CMs) to serve as a test bed for developmental, pharmacological, and regenerative studies. These cells can serve as therapeutic agents, ... -
Assessing the Role of GPIb-IX-V Complex in Transmitting Platelet Cytoskeletal Forces
Platelets rapidly seal wounds in blood vessels, preventing blood loss. They bind to ex-posed vascular matrix at the wound site through a highly specialized surface receptor, the glycoprotein (GP) Ib-IX-V complex, which ... -
Assessment of Field Surface Treatments for Prolonging the Life of Steel Welded Joints Subjected to Fatigue Loading
(2013-07-25)In heavy truck applications welds are commonly used to join structural steel components that are subjected to cyclical loads. In cases where a weld fatigue issue is discovered in the field the customer desires to have ... -
Asymmetrical Mass Considerations on the Motion of Planing Vessels
Recent advances in planing unmanned surface vessels (USV) have renewed interest in motion control, particularly related to transverse instabilities. We propose a novel method to affect maneuver and seakeeping motion by ... -
Automating Perturbation Experiments for a Hopping Robot using a Cable-Driven Impedance Haptic Device
DARPA Robotics Challenge revealed a need for testing/perturbing robots in systematic methods and testing robots in different environments. The goal of this research is to design a testbed that can render virtual dynamics ... -
Basis functions for use in direct calibration techniques to determine part-in-hand location
(2001)A common difficulty in implementing flexible automation is the complexity and lack of robustness of the intercalibration of all the components of the workcell and the part itself.A novel approach to the calibration problem, ... -
Benchmark Composite Wing Design Including Joint Analysis and Optimization
A composite wing panel software package, named WING Joint OpTimization and Analysis (WINGJOTA) featuring bolted joint analysis, is created and presented in this research. Three areas of focus were the development of an ... -
Bio-Inspired Hydro-Acoustic Sensor for Sensing Directivity of Sound
(2013-11-14)The aim of this research is to develop a biomimetic miniature underwater acoustic sensor for the measurement of the directivity of underwater sound. In contrast to a hydrophone array which detects direction by the arrival ... -
Black Dots: Reference-Free Traction Force Microscopy for Measuring Single-Cell Forces
Cells generate cytoskeletal forces for a many purposes including cell locomotion and tissue functions like heart beating and wound healing. The amount of force produced by a cell depends on many things including its cell ... -
Bondline temperature control using carbon fiber embedded resistive heaters
This research investigates the limits of temperature control and estimation when using embedded resistive heaters for adhesive bonding of carbon fiber-reinforced polymer (CFRP) adherends. With the increasing use of CFRP ... -
Building Exhaust Recovery, A Small Scale Wind Turbine Design
(2013-11-14)Small-scale wind turbine design is a growing field as larger utility turbine wind recovery sites are nearing saturation. We present a complete method for the design of small, application-specific turbines based on the blade ... -
Buoyancy Controlled Float Swarms for Distributed Sensing in Coastal Waterways
Buoyancy-controlled underwater floats have produced a wealth of in situ observational data from the open ocean. When deployed in large numbers, or 'swarms,' floats offer a unique capacity to simultaneously map, in ... -
Cable Driven Robots: Hysteretic Cable Stretch, Cable-Pulley Network Friction, Fatigue Life, and Kinematics of Two-Arm Multi Staged Flexible Manipulator
Cable driven mechanisms face control challenges associated with hysteretic response of cable and dynamic friction from guide pulleys due to variable cable tension. In this thesis, a new dynamic models of cable driven ...