한국정밀공학회:학술대회논문집 (Proceedings of the Korean Society of Precision Engineering Conference)
- 한국정밀공학회 2005년도 춘계학술대회 논문집
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- Pages.710-713
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- 2005
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- 2005-8446(pISSN)
완구 안전검사 기준을 적용한 강아지 로봇의 낙하 해석
Drop Simulation of Puppy Robot by Toys Safety Standards
- Chung Tae-Eun (Info-Mechatronics Dept. IIT) ;
- Kim Jun-Gi (SK Teletech) ;
- Sin Hyo-Chol (SNU)
- 발행 : 2005.06.01
초록
Many impact or drop test researches of home appliances are published, but those of toys cannot be found easily. External impacts are the primary causes of fracture of toys. For impact proof design, the finished product should pass an impact test after molding design. There are several international toy safety standards or requirements such as US CPSC(Consumer Product Safety Commission), ASTM F963-96a, EN71 and so on. The puppy robot which patrols around the house, namely, the watchdog was selected to investigate toy safety because it has considerable weight and outer panels are made of plastics. First the model of watchdog robot was obtained by 3 dimensional scan. Surface data can be generated from 3D polygon data of the watchdog. A reliable drop simulation method for the watchdog was established using Pam-crash program according to Korean toy safety standards. When there is a low impact allowance value, the molding design should be reinforced or changed. It was found that the maximum impact stress reaches the ultimate stress of panel material.
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