Association between Whole-Body Vibration exposure and musculoskeletal disorders among dumper operators: A case-control study in Indian iron ore mines

Upadhyay, Rahul; Bhattacherjee, Ashis; Patra, Aditya Kumar; Chau, Nearkasèn

doi:10.3233/wor-205140

Cited by 3 publications

(1 citation statement)

References 54 publications

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“…A study on dump truck operators in an Indian Iron ore mine showed that every day the majority of the operators in the study (59%) were exposed to vibrations exceeding the lower limit (0.45 m•s −2 ) stated by ISO-2631. The effect of high WBV includes risk of back pain, knee pain, leg pain and musculoskeletal disorders [1]. Another study measured vibration transmitted to a tractor seat on different speeds and road types and showed that ISO limits are exceeded in multiple common farming conditions.…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Assessment of a Vibration Control System Driven by Low Inertia Hydrostatic Magnetorheological Actuators for Heavy Equipment

Mallette,

Gauthier,

Hemmatian

et al. 2023

Actuators

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Active suspension systems for automotive vehicles were developed in the past using hydrostatic, electric, magnetic and magnetorheological (MR) technologies to control road vibrations and vehicle dynamics and thus improve ride comfort and vehicle performance. However, no such systems were developed for heavy equipment, trucks and off-highway vehicles. For instance, agricultural tractors are still equipped with minimal suspension systems causing discomfort and health problems to drivers. The high suspension loads due to the massive weight of these vehicles are a challenge since high forces are needed to achieve efficient active suspension control. This paper presents an experimentally validated feasibility study of a hydrostatic, MR clutch-driven system of actuators. The scope of this paper is to evaluate the preliminary performance of the actuator for future vibration control. The hydraulic system allows the actuators to be remotely located from the wheels or cabin of the heavy vehicle and conveniently placed on the vehicle’s suspended frame. The design includes two MR clutches driven in an antagonistic configuration to push and pull on the end effector. Experiments on a laboratory prototype show that the low-inertia characteristics of the clutches allow a high blocked-output force bandwidth of 20 Hz with peak output forces exceeding 15 kN.

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Section: Introductionmentioning

confidence: 99%

Design and Experimental Assessment of a Vibration Control System Driven by Low Inertia Hydrostatic Magnetorheological Actuators for Heavy Equipment

Mallette,

Gauthier,

Hemmatian

et al. 2023

Actuators

View full text Add to dashboard Cite

show abstract

Development of an intervention program to reduce whole-body vibration exposure based on occupational and individual determinants among dumper operators

Upadhyay

Senapati

Chau

et al. 2023

International Journal of Occupational Safety and Ergonomics

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Gestão da exposição ocupacional a vibrações de corpo inteiro em operadores de máquinas portuárias de movimentação de contêineres

Silva¹,

Alves²,

Villa³

et al. 2023

R. G. Secr.

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Considerando a expansão da movimentação mundial de cargas marítimas que cresce exponencialmente nos portos e para viabilizar essas demandas no uso crescente de máquinas portuárias, este trabalho visa avaliar como a operação de máquinas portuárias de movimentação de contêineres estão afetando seus operadores no que concerne as vibrações ocupacionais. Foram realizadas avaliações quantitativas de vibrações com base na norma de higiene ocupacional 09 nos postos de trabalho do operador de portêiner e tractor em um porto situado na região nordeste do Brasil. Os resultados obtidos apontaram para um contexto limítrofe, visto que tivemos a aceleração resultante de exposição normalizada - AREN com os níveis de alerta ultrapassados em sua maioria (86,2%) o valor da dose de vibração resultante -VDVR da mesma forma teve o nível de alerta ultrapassado na maioria dos casos (96,6%). Em relação ao limite máximo estabelecido pela legislação brasileira o AREN não chegou a ser ultrapassado, enquanto que o VDVR teve o limite máximo ultrapassado em 20% dos casos. A extrapolação dos níveis máximos de VDVR gera necessidades de intervenção imediata visto que a situação pode gerar doenças e desconforto aos operadores. Enfim sugere-se ações de prevenção e controle para mitigar as exposições nocivas as vibrações ocupacionais.

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Association between Whole-Body Vibration exposure and musculoskeletal disorders among dumper operators: A case-control study in Indian iron ore mines

Cited by 3 publications

References 54 publications

Design and Experimental Assessment of a Vibration Control System Driven by Low Inertia Hydrostatic Magnetorheological Actuators for Heavy Equipment

Design and Experimental Assessment of a Vibration Control System Driven by Low Inertia Hydrostatic Magnetorheological Actuators for Heavy Equipment

Development of an intervention program to reduce whole-body vibration exposure based on occupational and individual determinants among dumper operators

Gestão da exposição ocupacional a vibrações de corpo inteiro em operadores de máquinas portuárias de movimentação de contêineres

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