Attention decrease of drivers exposed to vibration from military vehicles when driving in terrain conditions

Park, D.J.; Choi, Moon-Gee; Song, Jun-kyung; Ahn, Se Jin; Jeong, Weui-Bong

doi:10.1016/j.ergon.2019.06.014

Cited by 14 publications

(6 citation statements)

References 31 publications

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“…On the other hand, coupling of the hand-arm system with the steering wheel does not provide high resistance to vertical, lateral, or roll motions. Mandapuram et al (2005) , 2017;McLeod & Griffin, 1989;Park et al, 2019;Summala, 2000). The present research found that frequencies ranging from 4 to 7 Hz and 8 to 13 Hz dominated during multiaxis vibration exposure.…”

Section: Seat-to-head Transmissibilitysupporting

confidence: 49%

“…The characteristics of the biodynamic responses found in the present work can be used together with findings in previous research to provide a possible association between the dominating frequencies and cognitive impairments among tractor drivers. In terms of visual acuity, hand–eye coordination, response time, and memory, the WBV may impact cognitive behavior (Costa et al, 2014; Kuo et al, 2017; McLeod & Griffin, 1989; Park et al, 2019; Summala, 2000). The present research found that frequencies ranging from 4 to 7 Hz and 8 to 13 Hz dominated during multiaxis vibration exposure.…”

Section: Resultsmentioning

confidence: 99%

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Real‐time vibration monitoring and analysis of agricultural tractor drivers using an IoT‐based system

Singh

Nawayseh

Samuel

et al. 2023

Journal of Field Robotics

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Agricultural tractor drivers experience a high amplitude of vibration, especially during soil tillage operations. In the past, most research studied vibration exposure with more focus on the vertical (z) axis than on the fore‐and‐aft (x) and lateral (y) axes. This study examines how rotary soil tillage affects the vibration acceleration and frequency, and the power spectral densities (PSDs) at the seat pan and head along three translational axes in a real‐field multiaxis vibration context. Moreover, this study aimed to identify the characteristics of the seat‐to‐head transmissibility (STHT) response to identifying the most salient resonant frequencies along the x‐, y‐, and z‐axes. Nine (9) male tractor drivers operated the tractor with a mounted rotary tiller throughout the soil tillage process. In the event of a COVID‐19 pandemic, and to respect social distancing, this study developed an Internet of Things (IoT) module with the potential to integrate with existing data loggers for online data transmission and to make the experimentation process more effective by removing potential sources of experimenter errors. The raw acceleration data retrieved at the seat pan and the head were utilized to obtain daily exposure (A(8)), PSDs, and STHT along the x‐, y‐, and z‐axes. The vibration energy was found to be dominant along the z‐axis than the x‐ and y‐axes. A(8) response among tractor drivers exceeds the exposure action value explicitly stated by Directive 2002/44/EU. PSDs along the x‐, y‐, and z‐axes depicted the low‐frequency vibration induced by rotary soil tillage operation. The STHT response exhibited a higher degree of transmissibility along the y‐ and z‐axes when compared with that along the x‐axis. The frequency range of 4–7 Hz may plausibly be associated with cognitive impairment in tractor drivers during rotary soil tillage.

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Section: Seat-to-head Transmissibilitysupporting

confidence: 49%

Section: Resultsmentioning

confidence: 99%

Real‐time vibration monitoring and analysis of agricultural tractor drivers using an IoT‐based system

Singh

Nawayseh

Samuel

et al. 2023

Journal of Field Robotics

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“…For real signals, which are affected by noise and many other phenomena, this approach is very limited. where 𝑀 is as given in (4).…”

Section: Evaluation Techniques Of Vibration Exposurementioning

confidence: 99%

Frequency Analysis of Vibrations in Terms of Human Exposure While Driving Military Armoured Personnel Carriers and Logistic Transportation Vehicles

et al. 2023

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Military heavy vehicle drivers experience low-frequency vibrations that are associated with fatigue, drowsiness, and other adverse health effects. The existing research papers focus on performing different types of analysis, but few use advance signal processing tools based on recurrence plot representation; therefore, the main goal of this paper is to assess the whole-body vibration (WBV) and hand-arm vibration (HAV) exposure of a driver, comparing armoured personnel carriers and cargo destined vehicles. For this purpose, the power of a signal distributed over its frequency was analysed using power spectral density (PSD) and diagonal line quantification (DLQ) analysis. According to the results, in the case of the cargo vehicle, the driver experienced vibration dose values of frequency weighted acceleration above the limits during all three experimental tests, with a maximum value of 26.802 m/s2, whereas the results in the case of the armoured personnel carrier are below the 5 m/s2 limit imposed by the ISO 5349-2 standard. From the developed tests it was observed that, to protect the driver against the fatigue induced by the vibrations of the vehicle body, it is necessary to provide an elastic and also damping linkage between the vehicle and the driver’s seat. This is the only way to ensure the needed protection and it is, by far, the least expensive.

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“…In the experiment, the hydraulic actuator applies a vibration excitation of different frequencies and displacements. Typical roads for high-speed tracked vehicles include paved roads, undulating roads, gravel roads, and the Gobi roads, 27 and the time-frequency range of road excitation is 0.1–100 Hz, the amplitude is 1–200 mm, the common time-frequency is 0.1–50 Hz, and the common amplitude range is 3–50 mm. In the simulation and experiment, a series of displacement excitations with the frequency of 0.1–50 Hz and the amplitude of 3–50 mm are applied to the hydraulic actuator, in order to ensure the validity of comparison results of simulation and experiment, two groups of excitation displacements of 25×sin (πt) and 50×sin (2πt) were randomly selected, the acceleration of the support fork under the two groups of displacement excitation are compared.…”

Section: Test and Performance Analysismentioning

confidence: 99%

Design of vibration damping test mechanism for suspension system of high speed tracked vehicle based on vertical linkage decoupling

Xue-dong

Guo

Chen

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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The suspension test-rig is restricted by the compound swing motion of the load wheel in a high-speed tracked vehicle, and cannot test the damping performance for the suspension system of the high-speed tracked vehicle with the track. A vibration damping testing mechanism using vertical linkage to decouple the compound swing motion of the load wheel is proposed for suspension performance testing with the track. Using Hertz elastic contact theory to solve the stiffness coefficient between load wheel and excitation wheel, a virtual prototype model for vibration damping test mechanism with vertical linkage is established in ADAMS. Correctness of the virtual prototype model is verified by experiment. The motion decoupling ability of the vibration damping testing mechanism is verified by simulation. The dynamic characteristics for each pair of guide and slider in vibration damping testing mechanism are analyzed under the condition of maximum excitation force and displacement, and the selection criteria of slider and guide contained in the motion pair components are acquired. The mechanism decouples the compound swing motion of the load wheel successfully, and can make suspension system performance testing in high-precision for the high-speed tracked vehicle with track realized, playing an important role in parameters design and performance optimization for the high-speed tracked vehicle.

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Attention decrease of drivers exposed to vibration from military vehicles when driving in terrain conditions

Cited by 14 publications

References 31 publications

Real‐time vibration monitoring and analysis of agricultural tractor drivers using an IoT‐based system

Real‐time vibration monitoring and analysis of agricultural tractor drivers using an IoT‐based system

Frequency Analysis of Vibrations in Terms of Human Exposure While Driving Military Armoured Personnel Carriers and Logistic Transportation Vehicles

Design of vibration damping test mechanism for suspension system of high speed tracked vehicle based on vertical linkage decoupling

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