Train Passengers Comfort with Regard to Whole-Body Vibration

Nassiri, Parvin; Koohpaei, Alireza; Zeraati, Hojjat; Shalkouhi, P. Jafari

doi:10.1260/0263-0923.30.2.125

Cited by 13 publications

(10 citation statements)

References 17 publications

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“…Standing person Lower arm (16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) Shoulder girdle (4)(5) Eyeball, intraocular structures Head (axial mode) (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) Chest wall (50- [20]). …”

Section: Perception and Annoyance Due To Vibrations In Dwellings Genementioning

confidence: 99%

Perception and Annoyance Due to Vibrations in Dwellings Generated from Ground Transportation: A Review

Trollé

Marquis‐Favre

Parizet

2015

Journal of Low Frequency Noise, Vibration and Active Control

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Over the past decades, the improvement of the quality of buildings regarding sound insulation has made it possible to reduce noise exposure. But this improvement has led to the increasing importance of other environmental nuisances such as vibrations. Just like noise, vibrations can also affect human health and well-being. National authorities are progressively becoming aware of the adverse effects of vibrations on human beings. One of these adverse effects is vibration annoyance. As a prerequisite for studying vibration annoyance, many research works have provided knowledge of how vibrations are perceived by human beings. But, until now, only a few large-scale studies have been carried out to gain knowledge of annoyance due to vibrations. This knowledge is of importance for public authorities in order to plan the development of transportation networks while taking account of this environmental nuisance (i.e. vibrations). Assessing vibration annoyance is a complex task that implies research work spread over various disciplines (e.g. human sciences, physics). This is why a review of knowledge in the field of vibration perception and annoyance is felt to be necessary. More specifically, this review focuses on vibration annoyance felt by inhabitants inside buildings and caused by ground transportation sources. Before dealing with the review of annoyance due to vibrations, the basics of human vibratory perception are presented. Then, annoyance due to a vibration exposure is dealt with. In particular, the way vibration exposure and vibration annoyance are measured and assessed is tackled. The main features and results of research works that aimed to establish exposure-effect relationships between annoyance and vibrations are described. Finally, this review presents a state-ofthe-art of annoyance due to a combined exposure to vibrations and noise, since people exposed to vibrations are also often exposed to airborne noise. This review is non-exhaustive, but it can give to scientists and engineers working in the field tools for a better understanding of some of the factors to consider when dealing with the issue of vibration annoyance due to ground transportation.

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Section: Perception and Annoyance Due To Vibrations In Dwellings Genementioning

confidence: 99%

Perception and Annoyance Due to Vibrations in Dwellings Generated from Ground Transportation: A Review

Trollé

Marquis‐Favre

Parizet

2015

Journal of Low Frequency Noise, Vibration and Active Control

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“…In the simplified kinetic model, other types of damping forms are usually replaced by an equivalent viscous damping. The differential equation of vibration for the cohesive damping system of raft is (1).…”

Section: Basic Theory Of Modal Analysismentioning

confidence: 99%

“…Nassiri et al. 1 pointed out that the vibration can result in discomfort and annoyance of passengers, and affect the health. Yucel and Arpaci 2 proposed to avoid excessive ship vibration for passenger comfort and crew living.…”

Section: Introductionmentioning

confidence: 99%

Structure and modal analysis of carbon fiber reinforced polymer raft frame

Zhang

Yang

Guozhi

et al. 2017

Journal of Low Frequency Noise, Vibration and Active Control

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This paper mainly studies the structure of a carbon fiber reinforced polymer floating raft frame and analyzes its vibration mode. A frame-based floating raft frame is designed, and two floating rafts which are made of carbon fiber reinforced polymer and metal materials, respectively, and have the same size and structure are manufactured. Based on the modal theory of vibration, the Abaqus software is used to carry out the finite element modal analysis of the frames which are made of different materials, and compare the low-order flexible frequency and vibration mode. Later, the experimental modal test results are verified with modal assurance criterion, and the modal experiment is conducted to verify the accuracy of finite element modal calculations. The results show that under the circumstance of the same frame vibration mode, the damping ratio of the carbon fiber reinforced polymer frame is much higher than that of the metal frame. In addition, the carbon fiber reinforced polymer frame presents good vibration absorption performance. The data analysis results provide some reference value for floating raft vibration designers.

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“…The awkward posture is most important among various risk factors [12,13]. Various studies have shown that the best strategy for the prevention of WMSDs is intervention aided by Multiple-Criteria Decision-Making (MCDM) techniques to reduce exposure to risk factors such as repetitive motions, excessive force, awkward postures, vibration and static activities [14][15][16][17]. This suggests that risk factors for MSDs must be considered and evaluated in the workstations [18,19].…”

Section: Introductionmentioning

confidence: 99%

Ergonomic Assessment of Posture Risk Factors Among Iranian Workers: An Alternative to Conventional Methods

Khandan

Vosoughi

Poursadeghiyan

et al. 2018

IRJ

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Work-related musculoskeletal disorders are a global problem which evolves at different workplaces such as industries, administrative, and agriculture sectors. In various studies, such disorders were assessed through multiple methods. It is necessary to evaluate different tools to use them in diverse communities. The aim of this study was to assess the validity of the new ergonomic evaluating method of Novel Ergonomic Postural Assessment (NERPA) method in Iran. Methods: The employees (n=455) of operational units of four companies (drug producers, printing and publishing houses, dairy, and drinks producers) were assessed in 2014. It was a cross-sectional and descriptive-analytical study. One of the researchers developed a questionnaire that was applied to collect demographic data. The NERPA, Rapid Upper Limb Assessment (RULA), and Rapid Entire Body Assessment (REBA) methods were utilized to analyze posture risk factors. Spearman correlation and Kappa agreement were used to analyze the collected data through SPSS V22. Results: Findings indicated that printing company had the best and pharmaceutical industries had the worst state regarding RULA's results. The risk levels between NERPA and REBA were not statistically significant (P>0.05), however, that was significant with RULA's outcome. Also, the results of NERPA and other two methods were correlated significantly (P<0.05). Pain in the lumbar area was implied to be the most prevalent problem (35.1%). Discussion: Data of the present study suggest that NERPA method was a valid tool compared to RULA. The NERPA method could be used to evaluate standing tasks among industrial workers. However, the concurrent validity of NERPA method compared with results of REBA, as a widely used method, were not verified.

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Train Passengers Comfort with Regard to Whole-Body Vibration

Cited by 13 publications

References 17 publications

Perception and Annoyance Due to Vibrations in Dwellings Generated from Ground Transportation: A Review

Perception and Annoyance Due to Vibrations in Dwellings Generated from Ground Transportation: A Review

Structure and modal analysis of carbon fiber reinforced polymer raft frame

Ergonomic Assessment of Posture Risk Factors Among Iranian Workers: An Alternative to Conventional Methods

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