DESIGN NAME: Bellpipes
PRIMARY FUNCTION: Bicycle Alarm Bell
INSPIRATION: To capture the wind power produced by riding a bike is an easy task. This project uses the concept of small wind tunnel and proposes a new bicycle bell with the combination of traditional bells and windpipes. Such design allows riders to choose between the two options depending on the road condition, enhancing the safety of riding bikes.
UNIQUE PROPERTIES / PROJECT DESCRIPTION: Bicycles and light electric motorcycles are both very quiet on the road. That is why bells are needed to alert pedestrians. Bellpipes’ design not only retains the advantage of traditional bells, but also increases the period of the ring. This function makes it easier for riders who are going downhill or riding at a high speed, extending the time of the alerting sound and enhance the safety of the people on the street. With the design of small wind tunnels, Bellpipes’ resonance chamber can also produce high speed airflow, thus making whistles while riding at a slow pace. The whistles produced are completely powered by wind, with no batteries at all.
OPERATION / FLOW / INTERACTION: The operation of Bellpipes is very easy. All the functions can be operated with a single thumb. While using the bicycle bell, the bagpipe will not make a sound. However, when the bagpipe is needed to make sounds, all there needs to be done is to turn Bellpipes with the thumb 90 degrees, making the air entrance of the bagpipe facing front, and the bagpipe will then start to whistle.
PROJECT DURATION AND LOCATION: This project was proposed in May of 2013, and produced in November of the same year. It was displayed in the art center of Kao Yuan University in September of 2014.
FITS BEST INTO CATEGORY: Vehicle, Mobility and Transportation Design
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PRODUCTION / REALIZATION TECHNOLOGY: Bellpipes’ cover is made with ABS, while the bell itself is made with copper.
SPECIFICATIONS / TECHNICAL PROPERTIES: L: 60mm
w: 60mm
h: 20mm(without revolving base)
TAGS: Bicycle bell, wind tunnel effect, 3D print, wind power,
RESEARCH ABSTRACT: The design has simulated the fluency of air flow via COMSOL and adjusted the small wind tunnel’s curved surface, allowing the airflow to be in accordance with the whistle’s speed when flown through the wind tunnel.
CHALLENGE: During the construction, we had to figure out how to make Bellpipes produce enough whistles when riders are riding at a normal speed.
ADDED DATE: 2015-02-26 07:12:31
TEAM MEMBERS (4) : Chen Jie-Yu, , Kuo Feng-Chi, , Lou Wan-Sin, and Yang Hao-Ran
IMAGE CREDITS: Chang-Yu Pan, 2014.
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