San Antonio, Texas
June 10, 2012
June 10, 2012
June 13, 2012
2153-5965
Mechanical Engineering
11
25.555.1 - 25.555.11
10.18260/1-2--21312
https://peer.asee.org/21312
419
James Aflaki received his Ph.D. in mechanical engineering from the University of Maryland, College Park. His specialty is in the area of thermal fluids and his sub specialty is in the area of computer applications and MIS. He has more than 20 years of teaching, research, and industry experience in mechanical engineering, MIS. He has received the best paper award from the Computer and Information in Engineering Division of ASME International.
Engineering SqueezeoMeter and HuggoMeterAbstract: This paper discusses the design of two experiments developed to serve two primarypurposes. The first one is to expose students to the application of strain gages and dataacquisition system to measure stresses in a beam due to particular loading conditions andcompare them with the results obtained from theoretical analysis. The second one is to use theseexperiments in engineering recruiting events and engage prospect engineering students in hands-on experiments so that they can envision great times while studying engineering. The first experiment is a strain gage based scale called SqueezoMeter designed to measure theapplied squeezing or pushing force. It is made of an S-shaped sensing element equipped with 4-strain gages, and two rectangular aluminum plates to apply the force.The second experiment, HuggoMeter, consists of two parallel ¼ inch aluminum beams mountedon two 8.5 x 16 x 1 in hard boards that are 1.25 inches apart. Mounted on the constant bendingportion of these beams are 4 strain gages forming a 4-active arm Wheatstone bridge. Studentscan hug the HuggoMeter and apply forces to it. The induced strains are measured through a dinrail mounted signal conditioner and A/D module, converted to the applied force and displayed onthe PC screen.These experiments, while entertaining and educational, integrate and apply the knowledgeobtained in courses such as statics, solid mechanics and instrumentation. It demonstrates thepotential use of strain gages as sensors. Strain gage, and signal conditioner are used to measure,calculate and analyze force by direct application of a concentrated or distributed loads.These experiments provide students with hands on experience with using strain gages, signalamplifiers, and conditioners and setting up and balancing Wheatstone bridge.
Aflaki, J. (2012, June), Engineering SqueezeoMeter and HuggoMeter Paper presented at 2012 ASEE Annual Conference & Exposition, San Antonio, Texas. 10.18260/1-2--21312
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