Umbrella Kothari Naman Sandeep Li Xuan Liu Yajiao VaghelaSaloni JD
Motivation Why did we decide to re-design umbrellas? Hard to find a perfectly fitting umbrella in markets Different sizes are not available for most existing umbrellas We want to take into consideration both the anthropometry and people’s preference Target Population What is our target population? General US adult population
Data Collection How did we get the data? Using a questionnaire to collect both the anthropometry data and preference data in our class.
Data Collection Measurements of 7 umbrellas we provided
Data Collection Anthropometry data Stature Weight Waist circumference Bag length and width Widest part circumference Hand to floor distance Top to floor distance Angle of holding the umbrella
Data Collection Preference data Umbrella size-diameter Umbrella length Shape of handle Fold times
Results Data Collection
Data Collection Results 0:No fold 1:one fold 2:two fold
3D model L D
Sizing and Optimization . where: w1 = w2 = 0.5 subject to: Limits: 5th & 95th percentile values
References • Garneau, C. J. and Parkinson, M. B. (2009). Optimization of tool handle shape for a target user population. ASME International Design Engineering Technical Conferences. DETC2009-87444. • Garneau, C.J. (2009). Investigation of accommodation for products designed for human variability. Master's Thesis.