Integrating Optimal Truss Design Methodologies Into Mechanical Engineering Technology

2002 ◽  
Author(s):  
William K. Szaroletta
Keyword(s):  
Mechanical Engineering ◽  
Optimization Theory ◽  
Truss Optimization ◽  
Element Analysis ◽  
Engineering Technology ◽  
Single Beam ◽  
Beam Elements ◽  
Single Criterion ◽  
Lower Division ◽  
Optimal Truss Design

The author has previously shown that single criterion optimization methodologies can be effectively integrated into lower-division mechanical engineering technology courses using single beam elements and a variety of load cases. In that paper, multiple methodologies of varying beam cross-section to minimize weight of the beam or to approach a constant stress state in the beam were described and their use investigated. This paper describes the application of these single criterion optimization methodologies to multiple-part assemblies, specifically engineering trusses. Although the optimization methodologies are similar, they are all far more complex in multiple-part assemblies than in single beam element optimization problem. The truss optimization theory, analysis, and testing that were utilized in the classroom and laboratory will be discussed in this paper. The correlation between optimization results from both spreadsheet solver and finite element analysis (FEA) solutions is presented. Also, the subsequent correlation between the analysis results and the experimental verification from photoelastic studies of prototype trusses is presented.

Incorporating Finite Element in Mechanical Engineering Technology Program via Three Existing Courses and by Introducing a Senior Level Elective in the Curriculum

2004 ◽  
Author(s):  
Aniruddha Mitra
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Mechanical Engineering ◽  
Element Analysis ◽  
Engineering Technology ◽  
Technology Program ◽  
Engineering Programs ◽  
Elective Course ◽  
Southern University ◽  
Element Theory

Finite Element Analysis has become a powerful tool for Industry, specially, in the Design and Development sector. In response to that, Mechanical Engineering Programs followed by Mechanical Engineering Technology programs all across the country are incorporating Finite Element Analysis as a part of their curricula. This paper describes the distribution of Finite Element Analysis amongst the junior and senior level courses in Mechanical Engineering Technology curriculum at Georgia Southern University. The links between these classes with sophomore classes are established. A stand alone senior level elective course that covers more in depth of Finite Element theory is also developed.

LabVIEW and Measure Foundry Based Data Acquisition System for Mechanical Engineering Technology Laboratories

2013 ◽  
Author(s):  
Emin Yilmaz
Keyword(s):  
Data Acquisition ◽  
Tensile Testing ◽  
Mechanical Engineering ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Materials Testing ◽  
Engineering Technology ◽  
Computer Data ◽  
Data Translation ◽  
Application Programs

Since the ASYST data acquisition and analysis software was discontinued and the old versions of ASYST do not support new computer operating systems and new data acquisition boards, old computer data acquisition (CDAQ) system is being replaced with a new data acquisition system. The new microcomputer based data acquisition system consists of an i-3 microcomputer with 3.0 GHz CPU and Windows-7 operating system, a Data Translation (DT) DT-304, 12-bit, 400 MHz data acquisition board with STP-300 screw terminal, Data Translation Measure Foundry (DT-MF) software and DT-LV link software [2], a National Instruments (NI) PCI-6250, M-series, low level, 16-bit, 1.25 MS/s board with 4-module SCC-68 I/O Connector Block, four thermocouple-input plug-in modules and NI LabVIEW (NI-LV) software [4]. Data Translation’s DT-LV software links DT boards with NI-LV software. Most ASYST-based data acquisition and analysis application programs used in Mechanical Engineering Technology (MET) courses have been converted to NI-LV and DT-MF application programs. Purpose of this paper is to describe how our old data acquisition application programs were converted to new data acquisition application programs so that they may be used with our new data acquisition system. Descriptions of the experiments, equipment used, and experiences gained with laboratory experiments are given elsewhere [8–13]. Specifically: Reference [8] covers upgrades made to the Materials Testing Laboratory, including Tinius-Olsen [14] tensile testing machine; reference [9] covers design and development of data acquisition programs for the materials testing, including Tensile Testing of Materials experiment; references [11] and [12] cover Heating Ventilating and Air Conditioning (HVAC) experiments and use of DAQ system in these experiments; reference [13] cover all uses of DAQ system in MET at University of Maryland Eastern Shore (UMES).

The Finite Element Analysis on the Crossbeam of Full Automatic Hydraulic Tile Press

2012 ◽  
Vol 605-607 ◽  
pp. 397-400
Author(s):  
Dong Qing Lv
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Static Analysis ◽  
Mechanical Engineering ◽  
Element Analysis ◽  
The Finite Element Analysis

Completed the finite element static analysis on the crossbeam of a certain type of automatic hydraulic tile press and discussed stress and transfiguration of the crossbeam. The result can provide reference for design, and the discussion will be useful for mechanical engineering.

Design and Characterization of Single Beam for Latching Electrothermal Microswitch

2012 ◽  
Vol 468-471 ◽  
pp. 286-289
Author(s):  
Ying Zhang ◽  
Hong Wang ◽  
Yan Wang ◽  
Sheng Ping Mao ◽  
Gui Fu Ding
Keyword(s):  
Mechanical Performance ◽  
Stable State ◽  
Cantilever Beams ◽  
Analysis Software ◽  
Stable States ◽  
Element Analysis ◽  
Single Beam ◽  
Fabrication And Characterization ◽  
Continuous Power

This paper presents the design, fabrication and characterization of single beam for latching electrothermal microswitch. This microswitch consists of two cantilever beams using bimorph electrothermal actuator with mechanical latching for performing low power bistable relay applications. A stable state can be acquired without continuous power which is only needed to switch between two stable states of the microactuator. The single beam is discussed mainly to judge the possibility of realizing the designed function. First, reasonable shape of the resistance is designed using finite element analysis software ANSYS. Then, mechanical performance was characterized by WYKO NT1100 optical profiling system, the tip deflection of single beam can meet the designed demand.

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