Whole-Body Shock and Vibration: Frequency and Amplitude Dependence of Comfort

Huston, Dryver R.; Zhao, Xiangdong; Johnson, Christopher C.

doi:10.1006/jsvi.1999.2585

Cited by 15 publications

(8 citation statements)

References 5 publications

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“…Fig -01 [2,7] : Power Spectral Density Plots for white noise vibration with and without shocks, white noise vibration, white noise & 8 Hz Shocks.…”

Section: Chartsmentioning

confidence: 99%

“…To this day, the research conducted on the comparison of various vibration signals containing mechanical shocks on humans has been somewhat restricted. In one study, a substantial mechanical hammer was employed to strike the seat beneath a test subject who was elastically suspended [7]. [2] The data obtained from the impact test were utilized to ascertain the linear mechanical response characteristics of the seated individual.…”

Section: Chartsmentioning

confidence: 99%

“…Fig -2 [7] : Driver and Commander Seat Personnel were instructed to remain seated during the measurements in order to accurately assess the vibrations on the seats. [7] The weights of the personnel occupying the seats were also necessary to consider, as they could potentially impact the vibrations experienced; Table 1 shows weights of people in the front cabs of the vehicles [8].…”

Section: Driver Commandermentioning

confidence: 99%

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A Review on Design and Analysis of Multifunctional Seats used in Military Vehicle

Sahare,

Khan

2024

IJSREM

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This paper is based on the study of Design and Analysis of Multifunctional Seats Used in Military Vehicle. Border Security Technologies are being adopted by every country to ensure the safety and sovereignty of their nation. It is crucial to study and understand the latest advancements in security technologies to effectively protect against evolving threats. Just as countries are advancing in defence the threats, they face are also evolving necessitating the upgrading of defence system. Multifunctional Special Vehicles play a crucial role in ensuring the safety of their crew during operational tasks. These vehicles are equipped with specially designed seats that offer a high level of protection in the event of collisions or explosive detonations. The proposed modular structure of these seats brings numerous advantages, including cost reduction using repeatable elements and the ability to easily customize seats with different functions. Moreover, this modular structure enables a faster restoration process in case of any damage. It is essential for the modules to be versatile and adaptable to various seat configurations, considering factors such as their location within the vehicle (e.g., driver's seat, troops' seats, system operators' seats), installation method (e.g., wall, floor, ceiling), and assembly direction (e.g., side mount, rear mount, bottom mount). Key Words: Analysis of Multifunctional Seat, explosion proof seat, absorb explosion energy, Study of Vibration, Human body Impact and Safety in Transport.

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“…Fig -01 [2,7] : Power Spectral Density Plots for white noise vibration with and without shocks, white noise vibration, white noise & 8 Hz Shocks.…”

Section: Chartsmentioning

confidence: 99%

Section: Chartsmentioning

confidence: 99%

Section: Driver Commandermentioning

confidence: 99%

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A Review on Design and Analysis of Multifunctional Seats used in Military Vehicle

Sahare,

Khan

2024

IJSREM

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“…To assess comfort, magnitudes of RMS accelerations are typically used to describe levels of discomfort in passengers [6]. Thresholds of acceptable vibrations have been identified from experimental studies where levels of discomfort have been associated with magnitudes of RMS accelerations, including [25,26]. These subjective scaling mechanisms are presented in ISO 2631-1 and shown in Table 1 below.…”

Section: International Standardsmentioning

confidence: 99%

Assessing the Welfare of Technicians during Transits to Offshore Wind Farms

Uzuegbunam,

Forster,

Williams

2023

Vibration

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Available decision-support tools rarely account for the welfare of technicians in maintenance scheduling for offshore wind farms. This creates uncertainties, especially since current operational limits might make a wind farm accessible but the vibrations from transits might be unacceptable to technicians. We explore technician exposure to vibration in transit based on the levels of discomfort and the likelihood of seasickness occurring on crew transfer vessels (CTVs). Vessel motion monitoring systems deployed on CTVs operating in the North Sea and sea-state data are used in a machine learning (ML) process to model the welfare of technicians based on operational limits applied to modelled proxy variables including composite weighted RMS acceleration (aWRMS) and motion sickness incidence (MSI). The model results revealed poor to moderate performance in predicting the proxies based on selected model evaluation criteria, raising the possibility of more data and relevant variables being needed to improve model performance. Therefore, this research presents a framework for an ML approach towards accounting for the wellbeing of technicians in sailing decisions once the highlighted limitations can be addressed.

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“…The discomfort of WBV may be increased with the inclusion of shocks. These shocks have been reported to make the ride more uncomfortable at lower frequencies (Huston et al, 2000), possibly due to the fact that they may be perceived by the individual as a larger disturbance to the ride comfort at the lower frequencies as they approach the vertical natural human frequency (Huston et al, 2000). Comfort may be affected by rotational vibrations on the seat as well as vibrations induced through the backrest, or through the feet of a sitting person based on the environment (ISO, 1997).…”

Section: Comfortmentioning

confidence: 99%

Six degree of freedom whole-body vibration during forestry skidder operations

Cation

Jack

Oliver

et al. 2008

International Journal of Industrial Ergonomics

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The author has granted a nonexclusive license allowing Library and Archives Canada to reproduce, publish, archive, preserve, conserve, communicate to the public by telecommunication or on the Internet, loan, distribute and sell theses worldwide, for commercial or noncommercial purposes, in microform, paper, electronic and/or any other formats. AVIS:L'auteur a accorde une licence non exclusive permettant a la Bibliotheque et Archives Canada de reproduire, publier, archiver, sauvegarder, conserver, transmettre au public par telecommunication ou par Nnternet, preter, distribuer et vendre des theses partout dans le monde, a des fins commerciales ou autres, sur support microforme, papier, electronique et/ou autres formats. CanadaBien que ces formulaires aient inclus dans la pagination, il n'y aura aucun contenu manquant.

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Whole-Body Shock and Vibration: Frequency and Amplitude Dependence of Comfort

Cited by 15 publications

References 5 publications

A Review on Design and Analysis of Multifunctional Seats used in Military Vehicle

A Review on Design and Analysis of Multifunctional Seats used in Military Vehicle

Assessing the Welfare of Technicians during Transits to Offshore Wind Farms

Six degree of freedom whole-body vibration during forestry skidder operations

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