# 종이 헬리콥터 낙하해석모델의 통계적 교정 및 검증

• Accepted : 2015.06.16
• Published : 2015.08.01
• 40 132

#### Abstract

Mathematical models are actively used to reduce the experimental expenses required to understand physical phenomena. However, they are different from real phenomena because of assumptions or uncertain parameters. In this study, we present a calibration and validation method using a paper helicopter and statistical methods to quantify the uncertainty. The data from the experiment using three nominally identical paper helicopters consist of different groups, and are used to calibrate the drag coefficient, which is an unknown input parameter in both analytical models. We predict the predicted fall time data using probability distributions. We validate the analysis models by comparing the predicted distribution and the experimental data distribution. Moreover, we quantify the uncertainty using the Markov Chain Monte Carlo method. In addition, we compare the manufacturing error and experimental error obtained from the fall-time data using Analysis of Variance. As a result, all of the paper helicopters are treated as one identical model.

#### Keywords

Paper Helicopter;Predictive Validation;Markov Chain Monte-Carlo Simulation;Statistical Calibration;Analysis of Variance

#### References

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