Optimal design in gear ratio of a city bike
| Autor: | Jang-Shyong You, Thu-Hua Liu |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Optimal design
Engineering business.industry Regression analysis social sciences behavioral disciplines and activities Industrial and Manufacturing Engineering Statistics Range (statistics) population characteristics Gear ratio business human activities health care economics and organizations Simulation |
| Zdroj: | Journal of the Chinese Institute of Industrial Engineers. 27:449-455 |
| ISSN: | 2151-7606 1017-0669 |
| DOI: | 10.1080/10170669.2010.510269 |
| Popis: | This article examines the optimal gear ratios in speed shifting of a city bike. We first defined the environmental factors of the bike as slope and velocity, the product factor as gear ratio, the objective factors of the user as pedaling rate and heart rate, and the subjective factor of the user as comfort. We performed two experiments. The first experiment is the factor experiment, the usage range and characteristics of such factors of the city bike as slope, velocity, gear ratio, pedaling rate, heart rate, and gear change frequency are obtained from analysis of test results. The second experiment is the comfort experiment. Based on the results of the factor experiment, we set three levels for each factor of velocity, slope, and gear ratio to perform experiments. We examined and predicted variable relationships through analysis of variance and regression analysis of the results of the comfort experiment. The gear ratio range obtained in this study was 0.80–2.55, with a gear ratio variation of 319%; the o... |
| Databáze: | OpenAIRE |
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