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  1. Using Predictive Models in Engineering Design: Metamodeling, Uncertainty Quantification, and Model Validation

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    Description: Predictive modeling has emerged as a new research subject that studies a broad range of modeling techniques to provide confident prediction of the phenomenon of interest by integrating scientific principles together with both computer models and observed physical experiments. Motivated by overcoming the existing challenges, the objective in this dissertation...
    Keyword: Mechanical Engineering
    Subject: Mechanical Engineering
    Creator: Ying Xiong
    Owner: Scholarly Digital Publishing
    Date Uploaded: 10/02/2018
    Date Modified: 10/02/2018
    Date Created: 2008-12-05
    Rights: In Copyright
    Resource Type: Dissertation
  2. Multi-agent Coordination by Decentralized Estimation and Control

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    Description: This thesis contributes in two ways. First it describes a new framework for the systematic design of collective behaviors and solves a key stability issue under this design framework. In this thesis we apply this framework to solve three tasks in the swarm robotics field: connectivity maintenance, formation control and...
    Keyword: Mechanical Engineering
    Subject: Mechanical Engineering
    Creator: Peng Yang
    Owner: Scholarly Digital Publishing
    Date Uploaded: 09/19/2018
    Date Modified: 09/19/2018
    Date Created: 2008-11-07
    Rights: In Copyright
    Resource Type: Dissertation
  3. Modeling the Mechanical Properties of Intermetallic/Solder Interfaces

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    Description: Solder joint integrity is recognized as a key issue in the reliability of flip chip and ball grid arrays in integrated circuit packages. Significant reductions in the solder-joint interconnect size results in both the increased volume fraction of brittle intermetallics in the joint and joule heating and electromigration failure due...
    Keyword: Mechanical Engineering
    Subject: Civil and Environmental Engineering
    Creator: Yao Yao
    Owner: Scholarly Digital Publishing
    Date Uploaded: 09/19/2018
    Date Modified: 09/19/2018
    Date Created: 2008-11-03
    Rights: In Copyright
    Resource Type: Dissertation
  4. Micro/Nanoscale Friction and Application of Surface Wettability in MEMS

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    Description: Micro/nanoscale friction behavior has drawn a great deal of attention because it can reveal friction behavior at the interface level and ultimately lead to the discovery of the origin or real mechanism of friction. Surface wettability is an important property of solid surfaces and has been widely used in fundamental...
    Keyword: Mechanical Engineering
    Subject: Mechanical Engineering
    Creator: Bo He
    Owner: Scholarly Digital Publishing
    Date Uploaded: 09/14/2018
    Date Modified: 09/14/2018
    Date Created: 2008-08-28
    Rights: In Copyright
    Resource Type: Dissertation
  5. Three problems in microfluidics: Electrokinetic instability, electrohydrodynamic self-assembly, and slip

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    Description: This thesis deals with three problems encountered in micro- and nano-fluidics: linear stability analysis of electrokinetic mixing in icrochannels, development of a general purpose numerical technique for fully resolved simulation of electrohydrodynamic particulate flows, and studying the phenomenon of molecular scale slip next to boundaries in micro- and nano-channels. Mixing...
    Keyword: Mechanical Engineering
    Subject: Mechanical Engineering
    Creator: Hua-Yi Hsu
    Owner: Scholarly Digital Publishing
    Date Uploaded: 09/14/2018
    Date Modified: 09/14/2018
    Date Created: 2008-08-28
    Rights: In Copyright
    Resource Type: Dissertation
  6. Protein Folding Under an Applied Force

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    Description: In this thesis we study protein folding with external force. In Part I we simulate the folding or unfolding procedure based on the two-state model. For constant-velocity experiments, the simulation results fit the experimental results. For constant-force experiments, we introduce cooperativity between domains to explain the different behavior between single...
    Keyword: Mechanical Engineering
    Subject: Mechanical Engineering
    Creator: Pengfei Diao
    Owner: Scholarly Digital Publishing
    Date Uploaded: 09/14/2018
    Date Modified: 09/14/2018
    Date Created: 2008-11-18
    Rights: In Copyright
    Resource Type: Dissertation
  7. REGENERATIVE CHATTER IN COLD ROLLING

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    Description: A dynamic model of the rolling process that includes the material strain-hardening and work roll flattening effects was developed based on homogeneous deformation theory. By coupling this new dynamic rolling process model with a structural model for a mill stand, a single-stand chatter model expressed through a state-space representation was...
    Keyword: Mechanical Engineering
    Subject: Mechanical Engineering
    Creator: Huyue Zhao
    Owner: Scholarly Digital Publishing
    Date Uploaded: 09/07/2018
    Date Modified: 09/07/2018
    Date Created: 2008-05-06
    Rights: In Copyright
    Resource Type: Dissertation
  8. Nonlinear Acoustic Technique for Fatigue Damage Detection

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    Description: A major challenge in the field of Structural Health Monitoring (SHM) of safety-critical structures is how to effectively and efficiently detect fatigue damage, especially before there is macrocrack initiation. In this dissertation, a local ultrasonic technique is developed to assess pre-crack fatigue damage in structures. The novel feature of this...
    Keyword: Mechanical Engineering
    Subject: Mechanical Engineering
    Creator: Sun Li
    Owner: Scholarly Digital Publishing
    Date Uploaded: 09/06/2018
    Date Modified: 09/06/2018
    Date Created: 2008-02-26
    Rights: In Copyright
    Resource Type: Dissertation
  9. Molecular Modeling and Continuum Analyses of Thin Film Interfaces

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    Description: The combined trends of decreasing application size and increasing requirements for energy efficiency have driven a need for improved understanding and better predictive tools for thin film lubricated systems. Research on such systems is complicated by the involvement of both larger scale phenomena such as fluid flow, material deformation, and...
    Keyword: Mechanical Engineering
    Subject: Mechanical Engineering
    Creator: Ashlie Martini
    Owner: Scholarly Digital Publishing
    Date Uploaded: 07/25/2018
    Date Modified: 07/25/2018
    Date Created: 2007-05-10
    Rights: In Copyright
    Resource Type: Dissertation
  10. Fluid-Structure Interaction

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    Description: Spectral elements are p-type element which can provide better accuracy and faster convergence. However, applications of these elements make conformation to discontinuities in the function or its derivative difficult. The eXtended Finite Element Method (XFEM) recently developed at Northwestern University can easily treat the arbitrarily aligned discontinuities, i.e. independent of...
    Keyword: Mechanical Engineering
    Subject: Mechanical Engineering
    Creator: Hongwu Wang
    Owner: Scholarly Digital Publishing
    Date Uploaded: 05/21/2018
    Date Modified: 05/21/2018
    Date Created: 2007-03-20
    Rights: In Copyright
    Resource Type: Dissertation