Impact Correlation with Accelerometer in Home Appliance Industry

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TOOLS AND TECHNIQUES

Impact Correlation with Accelerometer in Home Appliance Industry Somnath K. Chavan

Submitted: 3 March 2020 / Accepted: 11 May 2020 Ó ASM International 2020

Abstract Non-destructive testing in verification and validation (V&V) is playing a significant role now a days. Since validated simulation model provides more insight of product and gives real-time behavior without consuming the physical product for testing. Acceleration data is very valuable input for finding loopholes in the simulation models and optimizing the method of modeling. Once validated simulation model has been set up, multiple iterations can be run for solving material differences, geometrical changes, and variations in process tolerances which will ultimately reduce the build-fix-rebuild time. Simulation methodology helps to arrive at appropriate decision for the selection of optimized and safer design. Keywords Flat drop  Inclined impact  g value  Correlation Abbreviations CAD FEA LDC EPS PVC PC LS-Dyna CG WOOD-001L

Computer-aided design Finite element analysis Local distribution center Expanded polystyrene Polyvinyl chloride Polycarbonate Finite element program Center of gravity Internal standard

S. K. Chavan (&) Whirlpool of India Limited, GTEC, Pune, India e-mail: [email protected]

Introduction Product development cycles can be tedious and expensive procedures, particularly when physical prototypes are required. When a tangible model is involved, the product must be designed, built, tested, and then fixed accordingly. Physical prototypes must be built and rebuilt after every unsuccessful test, making them a less than optimal choice for a company that values efficiency. With simulation, however, the development of a product moves straight from design to testing and analysis, and then finally to build. Virtual prototyping or simulation allows for the digital exploration of a complete simulated product before it is actually built, decreasing the number of rebuilds necessary and minimizing material waste. Organizations now have opportunities to move toward the simulations which allows to test product without destroying the physical product once the validated model has been set. Transit handling of home appliances during distribution chain involves damages. To verify product sustainability to these damages, internal and external specifications are set in every region of the world. These specification test includes drop on bottom, impact on lateral faces, dragging of product, clamping of product and foot impression test on top of product (Fig. 1). Drop test is important because it helps to quantify the strength of package as well as product. This drop test method is particularly suitable where the products are normally handled manually during some part of the distribution cycle i.e. LDC or trade partner; when the product may be dropped from some height. This load case may also relate to low-frequency truck vibration such as the product loading when going over a ‘‘speed bump’’ and especially the back of the trailer