Top 4 Engrxiv Papers Today


2.05 Mikeys
#1. Failure mode and effects analysis of LFP battery module
Hsien-Ching Chung
The analysis of the charge/discharge curve helps judge the quality of cells and figure out some strange behaviors of the battery module. Especially, many unusual behaviors won’t exhibit on the appearance. It’s important to establish the charge/discharge profile database for effective manufacturing and troubleshooting. In this talk, the basic charge/discharge method of Li-ion battery, simple equivalent circuit model of battery, general charge/discharge curve of LFP battery will be introduced. Then a case-by-case failure mode and effects analysis will be presented. Up to ten cases are discussed in the slides. Dr. Hsien-Ching Chung was invited by Dr. Jim Lee (the chairman of Taiwan Battery Association) to give a talk about "Failure mode and effects analysis of LFP battery module" in the conference, "2018 Taiwan-Japan exchange conference on battery materials and battery manufacturing technologies." The conference was held in Center for Space and Remote Sensing Research, National Central University, Taoyuan, Taiwan on Dec. 18, 2018....
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2.015 Mikeys
#2. A Method for Superelastic Constitutive Properties Calibration Using Full-field Surface Strain Data
Harshad Paranjape, Kenneth I. Aycock, Craig Bonsignore, Jason D. Weaver, Brent A. Craven, Thomas W. Duerig
Superelastic Nitinol is a widely used material to manufacture implantable medical devices. Simulations are extensively used in the design, optimization, and durability assessment of Nitinol implants. The constitutive response of superelastic materials is non-linear, anisotropic, and asymmetric in tension vs. compression. The existing methods to determine the superelastic material properties used in finite element simulations typically do not account for some of these complexities. The goal of this work is to introduce a method to determine the superelastic material constitutive properties using full-field surface strain measurements. We propose using digital image correlation to obtain surface strain fields during tensile testing of specially designed diamond specimens. The material properties are determined by minimizing a difference metric defined in terms of the local strain difference and the global load difference between the experiment and trial simulations. We also propose a metric in terms of the local strain difference...
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engrXiv: "A Method for Superelastic Constitutive Properties Calibration Using Full-field Surface Strain Data" - https://t.co/btaJxH836b #engineering
Jeremy972i: RT @engrXiv: "A Method for Superelastic Constitutive Properties Calibration Using Full-field Surface Strain Data" - https://t.co/btaJxH836b…
4maticX250d: RT @engrXiv: "A Method for Superelastic Constitutive Properties Calibration Using Full-field Surface Strain Data" - https://t.co/btaJxH836b…
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2.004 Mikeys
#3. Comparative analysis of electro-mechanical properties of enameled winding wires filled with a silica nanofiller
Arjun Mehta
This study deals with the use of a nanofiller, AEROSIL® R 972, a form of fumed silica with an average diameter of around 16nm and specific surface area of 110m2/g. This nanofiller is used in combination with the Polyamide Imide Wire Enamel to create a nanocomposite AI 32 S suspension. The investigation is a comparative study, using different proportions of nanofiller and a reference sample containing no filler, to determine any potential changes in electrical and mechanical properties of the wire enamel. Experimental results showed improvements in surface finish of the coat, viscosity, abrasion resistance and breakdown voltage.
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1.997 Mikeys
#4. Amplitude Division Multiple Access Using Uniqueness of Prime Factorization
Pradyoth H Shandilya
A new method of amplitude division multiplexing (ADMA) is proposed, where a single channel can be used to transmit multiple digital signals simultaneously using the concept of prime number factorization. This method contrasts with the currently used methods such as frequency-division multiple access (FDMA), in which the total bandwidth available in a channel is divided into a series of non-overlapping frequency bands, each of which is used to carry a separate signal. Comparison of the proposed method with a popular PAM technique-2B1Q method is made. Distinct advantages of the proposed method and a few applications are presented.
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