Static Load Test Performance of a Telescoping Structure for an Automatically Deployable ROPS

Etherton, J. R.; Cutlip, Robert G.; Harris, James R.; Ronaghi, M.; Means, Kenneth H.; Gillispie, Adam Michael

doi:10.13031/2013.7223

Cited by 7 publications

(2 citation statements)

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“…The problems of this study are quite relevant and attract the interest of the experts both in Russia [2][3][4] and abroad [5][6][7]. The authors [2] evaluated the stress-strain state of the ROPS during a rollover of wheeled skidder TLK-4-01 (Fig.…”

Section: Methodsmentioning

confidence: 99%

Energy-Absorbing Cab Support of Forest Machine

Питухин

Kostyukevich

Скобцов

2015

AMM

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One of the requirements to the cabin of a forestry machine is the ability to absorb a certain amount of energy during deformation in the event of a rollover. The paper presents a method for increasing energy absorption of protective structure of a forestry machine cabin, enabling to reduce the risk of injuries to the operators in the event of an emergency. This is achieved by introducing into the structure of the protective frame of a cab energy-absorbing mounts in which the energy is absorbed due to plastic deformation of their elements in the event of a rollover of forestry machine. The article presents the design of the mount, describes the principle of its operation in the event of an emergency, and theoretical and experimental studies of the deformable mount. As the result of theoretical and experimental investigations the geometric parameters of the energy-absorbing mount are determined.

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Section: Methodsmentioning

confidence: 99%

Energy-Absorbing Cab Support of Forest Machine

Питухин

Kostyukevich

Скобцов

2015

AMM

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“…For example, Harris et al [1,2], Powers et al [3], Etherton et al [4] analyzed agricultural tractor rollovers using finite element modeling. Dumitrache P.…”

Section: Introductionmentioning

confidence: 99%

Method of Evaluation of Forestry Machine Roll-over Protective Structure Efficiency

Питухин¹,

Скобцов²,

Shilovskiy³

et al. 2016

Proceedings of the International Symposium on Mechanical Engineering and Material Science

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Abstract. Current standards in the field of self-propelled machinery for forestry require equipping tractor cabins with roll-over protective structures (ROPS). It is necessary to reduce the risk of operator's injuries caused by tractor rollovers or falling trees. This study deals with the investigation of forest machine ROPS deflected mode during lateral loading by using mathematical modeling. Finite element method and method of variable parameters of elasticity are taken as a principle of this work. One of regulatory materials requirements is the ability to absorb certain amount of potential energy during ROPS deformation. The estimation of the quantity of absorbed energy was made by the idealized stress-strain curve. The safety compliance assessment included the comparison between the quantity of this energy and its standard value. It can improve protection properties at the design stage. Ways of increasing ROPS efficiency are presented at the last part of the paper.

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