Investigation of the transmission of fore and aft vibration through the human body

Demić, Miroslav; Lukić, Jovanka

doi:10.1016/j.apergo.2008.05.002

Cited by 36 publications

(28 citation statements)

References 11 publications

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“…The fact that BDFT can degrade manual control performance in so many ways and under so many different circumstances makes it highly relevant to study its mechanisms. Many studies into biodynamic feedthrough have preceded the current work [7]- [11], but its fundamentals are still only poorly understood. The occurrence of BDFT is influenced by many factors, that often show complex mutual interactions.…”

Section: Introductionmentioning

confidence: 99%

Biodynamic feedthrough is task dependent

Venrooij

Abbink

Mulder

et al. 2010

2010 IEEE International Conference on Systems, Man and Cybernetics

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Vehicle accelerations may lead to involuntary limb motions. These motions can result into involuntary control inputs when performing a manual control task. This phenomenon is called biodynamic feedthrough (BDFT). This paper aims to show that task interpretation plays an important role in the occurrence of BDFT. Results of an experiment are presented, in which biodynamic feedthrough was measured during three different control tasks. Each control task required the human operator to adapt his/her neuromuscular settings. The results show that the level of biodynamic feedthrough depends on the task the human operator is performing. From further analysis, it can be observed that the experiment results are in good agreement with BDFT measurements found in literature. The comparison confirms that the task interpretation plays an important role in BDFT which cannot be ignored when attempting to understand or mitigate BDFT in practical situations

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Section: Introductionmentioning

confidence: 99%

Biodynamic feedthrough is task dependent

Venrooij

Abbink

Mulder

et al. 2010

2010 IEEE International Conference on Systems, Man and Cybernetics

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“…Seat-to-head transmissibility is a widely used biomechanical measure in WBV for the quantification of energy through the system [3,8,10,24,26]. It is defined as the complex ratio between the cross-spectral density of the input seat horizontal acceleration and the output head acceleration S hs (jw) divided by the auto-spectral density of the input horizontal seat acceleration S ss (jw).…”

Section: Seat-to-head Transmissibilitymentioning

confidence: 99%

“…Seat-to-head transmissibility (STHT) is a widely used biomechanical measure in whole-body vibration (WBV) for the quantification of energy through the system and as an objective indicator for vehicle-ride discomfort [3,8,10,24]. With STHT, there is generally uncertainty associated with the location of the output point on the head.…”

Section: Introductionmentioning

confidence: 99%

Predictive Discomfort and Seat-to-Head Transmissibility in Low-Frequency Fore-Aft Whole-Body Vibration

DeShaw

Rahmatalla

2011

Journal of Low Frequency Noise, Vibration and Active Control

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A predictive discomfort measure considering the combined neck and trunk is introduced in this work and compared with the seat-to-head transmissibility and subjective reported discomfort due to fore-aft whole-body vibration of seated subjects under two sitting postures. Five subjects were tested using discrete sinusoidal frequencies in the range of 0.5-12 Hz. All files were run at a constant acceleration of 0.8 m/s 2 . The subjects were tested with back support and without back support, and their subjective discomfort measure was reported based on the Borg CR-10 scale. The results have demonstrated that the predictive discomfort was invulnerable to the measurement locations and has shown consistency with the subjective discomfort for both sitting conditions. The seatto-head transmissibility showed less consistency with the subjective discomfort and was sensitive to the locations of the output point on the head and to the components of the motion included in the transmissibility calculation at these locations.

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“…The phases of medical evacuation can be characterized by ground, vehicle, and aerial transport (Kang and Lehman, 2011), and wholebody vibration (Demic and Lukic, 2009;Johanning, 2011) exists in all of these modes. A study (Alberti et al, 2006) on off-road ambulance and hand transportation showed the largest un-weighted average accelerationsd1.87 and 1.46 m/s 2 , respectively.…”

Section: Introductionmentioning

confidence: 99%