Dancing Manhole Cover:A Nonlinear Spring-Mass System
ASME 2019 Pressure Vessels and Piping Division, Texas, Amerika Birleşik Devletleri, 14 - 19 Temmuz 2019, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1115/pvp2019-93086
- Basıldığı Şehir: Texas
- Basıldığı Ülke: Amerika Birleşik Devletleri
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
Dancing manhole covers are an intriguing and curious phenomenon but extremely dangerous for road vehicles as well as pedestrians. They are reported worldwide after heavy rainfall in urban environment. Stormwater systems are overloaded with running water containing large entrapped air pockets for which manholes form an escape route. However, heavy lids cover the manholes and they are supposed not to move.
An attempt is made to understand the physics behind dancing manhole covers by means of simple spring-mass-dashpot modeling. The ingredients are liquid slugs, air pockets, and fluid-structure interaction.