Venting manhole cover: A nonlinear spring-mass system

Arris S. Tijsseling; Jose G. Vasconcelos; Qingzhi Hou; Zafer Bozkus

doi:10.1115/PVP2020-21084

Venting manhole cover: A nonlinear spring-mass system

Arris S. Tijsseling, Jose G. Vasconcelos, Qingzhi Hou, Zafer Bozkus

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

3 Citations (Scopus)

Abstract

Manholes are vertical shafts connecting underground sewers with street-level terminals. They are covered by heavy lids. During periods of heavy rainfall, the air column in the upper part of the manhole may be compressed to such high level that the lid moves up. Of course, this is a dangerous situation for pedestrians and road traffic. Bolting the lid may provide a solution to the problem, but it is known that air pressurization underneath can result in structural damage. A simple model is proposed to describe the lifting of the lid (manhole cover). When the lid moves up, air is allowed to escape so that the lifting pressure decreases and the lid moves down, whereupon the air pressure increases again. This repetition might lead to the realistic phenomenon of the dancing manhole cover. Since the model is strongly nonlinear, interesting dynamic behavior is expected.

Original language	English
Title of host publication	Fluid-Structure Interaction
Publisher	American Society of Mechanical Engineers
Number of pages	7
ISBN (Electronic)	9780791883846
DOIs	https://doi.org/10.1115/PVP2020-21084
Publication status	Published - 2020
Event	ASME 2020 Pressure Vessels and Piping Conference, PVP 2020 - Virtual, Online Duration: 3 Aug 2020 → …

Publication series

Name	American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume	4
ISSN (Print)	0277-027X

Conference

Conference	ASME 2020 Pressure Vessels and Piping Conference, PVP 2020
City	Virtual, Online
Period	3/08/20 → …

Funding

The third author is grateful for the support by the National Natural Science Foundation of China (No. 51478305, U1765202), China Special Fund for Hydraulic Research in the Public Interest (No. 2014010133) and Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry.

Keywords

Fluidstructure interaction (fsi)
Gas pocket
Liquid slug
Manhole cover
Mass oscillation
Nonlinear spring
Orifice
Vent

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10.1115/PVP2020-21084

Cite this

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title = "Venting manhole cover: A nonlinear spring-mass system",

abstract = "Manholes are vertical shafts connecting underground sewers with street-level terminals. They are covered by heavy lids. During periods of heavy rainfall, the air column in the upper part of the manhole may be compressed to such high level that the lid moves up. Of course, this is a dangerous situation for pedestrians and road traffic. Bolting the lid may provide a solution to the problem, but it is known that air pressurization underneath can result in structural damage. A simple model is proposed to describe the lifting of the lid (manhole cover). When the lid moves up, air is allowed to escape so that the lifting pressure decreases and the lid moves down, whereupon the air pressure increases again. This repetition might lead to the realistic phenomenon of the dancing manhole cover. Since the model is strongly nonlinear, interesting dynamic behavior is expected.",

keywords = "Fluidstructure interaction (fsi), Gas pocket, Liquid slug, Manhole cover, Mass oscillation, Nonlinear spring, Orifice, Vent",

author = "Tijsseling, {Arris S.} and Vasconcelos, {Jose G.} and Qingzhi Hou and Zafer Bozkus",

year = "2020",

doi = "10.1115/PVP2020-21084",

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booktitle = "Fluid-Structure Interaction",

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note = "ASME 2020 Pressure Vessels and Piping Conference, PVP 2020 ; Conference date: 03-08-2020",

}

Tijsseling, AS, Vasconcelos, JG, Hou, Q & Bozkus, Z 2020, Venting manhole cover: A nonlinear spring-mass system. in Fluid-Structure Interaction., V004T04A011, American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, vol. 4, American Society of Mechanical Engineers, ASME 2020 Pressure Vessels and Piping Conference, PVP 2020, Virtual, Online, 3/08/20. https://doi.org/10.1115/PVP2020-21084

Venting manhole cover: A nonlinear spring-mass system. / Tijsseling, Arris S.; Vasconcelos, Jose G.; Hou, Qingzhi et al.
Fluid-Structure Interaction. American Society of Mechanical Engineers, 2020. V004T04A011 (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 4).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Venting manhole cover

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AU - Tijsseling, Arris S.

AU - Vasconcelos, Jose G.

AU - Hou, Qingzhi

AU - Bozkus, Zafer

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N2 - Manholes are vertical shafts connecting underground sewers with street-level terminals. They are covered by heavy lids. During periods of heavy rainfall, the air column in the upper part of the manhole may be compressed to such high level that the lid moves up. Of course, this is a dangerous situation for pedestrians and road traffic. Bolting the lid may provide a solution to the problem, but it is known that air pressurization underneath can result in structural damage. A simple model is proposed to describe the lifting of the lid (manhole cover). When the lid moves up, air is allowed to escape so that the lifting pressure decreases and the lid moves down, whereupon the air pressure increases again. This repetition might lead to the realistic phenomenon of the dancing manhole cover. Since the model is strongly nonlinear, interesting dynamic behavior is expected.

AB - Manholes are vertical shafts connecting underground sewers with street-level terminals. They are covered by heavy lids. During periods of heavy rainfall, the air column in the upper part of the manhole may be compressed to such high level that the lid moves up. Of course, this is a dangerous situation for pedestrians and road traffic. Bolting the lid may provide a solution to the problem, but it is known that air pressurization underneath can result in structural damage. A simple model is proposed to describe the lifting of the lid (manhole cover). When the lid moves up, air is allowed to escape so that the lifting pressure decreases and the lid moves down, whereupon the air pressure increases again. This repetition might lead to the realistic phenomenon of the dancing manhole cover. Since the model is strongly nonlinear, interesting dynamic behavior is expected.

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KW - Liquid slug

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KW - Mass oscillation

KW - Nonlinear spring

KW - Orifice

KW - Vent

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ER -

Venting manhole cover: A nonlinear spring-mass system

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