Human Vibration Articles

  • [Training] New Dates for Vibration Training Workshops

    We’re delighted to announce our new Vibration Measurement Training Workshop, the first of which will be held on 19th January 2018 at the new Spirit of Yorkshire Whisky Distillery in Hunmanby, North Yorkshire. This 1/2-day workshop will give attendees an understanding of the issues associated with hand-arm and whole-body vibration, and how the Cirrus Revo vibration meter can help your ...


    By Cirrus Research plc

  • Construction site health and safety failures

    As what is largely agreed to be the world’s most dangerous industry, construction site Health and Safety failures constitute potentially severe harm to worker wellbeing, with the capacity to severely impact quality of life or – put bluntly – end it. Running contrary to this doom-laden approach though, improvements to the industry typically arise from assessing ...


    By SHEilds Ltd

  • How to Protect Against Colds and Flu: The Facts that you Need to Know About.

    Seasonal flu is not only unpleasant for employers and employees, it’s expensive. Each flu season, nearly 111 million workdays are lost because of the flu, the US Department of Health & Human Services has found. That represents approximately $7 billion per year in sick days and lost productivity. Most of us have seen a sick co-worker trying to make his way through the workday instead of ...


    By SafetySmart

  • Musculoskeletal Disorders – At work and away

    Musculoskeletal Disorders (MSDs) make up a significant number of work related ill health cases in the United Kingdom. MSD according to the HSE covers any injury, damage or disorder of the joints or other tissues in the upper/lower limbs or the back. In the latest 2014/15 figures from the HSE, 53% of cases (383,000 cases) that started more than 12 months ago can be attributed to MSD. A 2014 survey ...


    By SHEilds Ltd

  • Enter a New World with Cirrus Research

    Cirrus is evolving. We want to make safety at work easily achievable for everyone. That’s why we’re entering into the world of vibration with the launch of the Revo™ Vibration Meter. Join us on our journey. Introducing the Revo™ Vibration Meter ...


    By Cirrus Research plc

  • Measurement and bio–dynamic model development of seated human subjects exposed to low frequency vibration environment

    In this study, the effect of posture, vibration magnitude and frequency on seat–to–head (STH) and back support–to–head (BTH) transfer functions has been studied under vertical sinusoidal vibration. Twelve healthy male subjects participated in experimental work to measure vertical vibration transmitted to the occupants' heads in three representative postures (erect, ...


    By Inderscience Publishers

  • Upgrade of turbine intake damper controllers on SS Cape Isabel - Case Study

    Overview SS Cape Isabel is a 655ft, 15,000 ton roll on/roll off cargo ship based at Long Beach and operated by the US Military Sealift Command. Launched in 1976, the ship is powered by two steam turbines. The Reason The ship’s two turbine intake radial vane dampers were equipped with pneumatic controllers (actuators) which were now obsolete. The old ...


    By Rotork plc

  • Minor construction measures that influences vibration in concrete floors from foot steps and electric motors

    Concrete floor constructions often suffer from high frequency vibrations. Humans aerobics workouts and various motors are sensitive to that kind of vibrations and it is of interest to find simple methods that reduce floor vibrations and thereby increase the comfort for habitants. Two steel framed concrete floors equipped with a vibration damping compound is used as a test object under laboratory ...


    By Inderscience Publishers

  • Human emotional response to steering wheel vibration in automobiles

    This study investigates what form of correlation may exist between measures of the valence and the arousal dimensions of the human emotional response to steering wheel vibration and the vibration intensity metrics obtained by means of the unweighted and the frequency weighted root mean square (rms). A laboratory experiment was performed with 30 participants who were presented 17 acceleration time ...


    By Inderscience Publishers

  • Identification of quality attributes of automotive idle sounds and whole–body vibrations

    The aims of this study are the generation and comparison of the semantic spaces of vehicle idling sounds and vibrations and the determination of their quality dimensions. In this study, two different sets of quality attributes were developed for idling sounds (34 attributes) and whole–body vibrations (22 attributes). In contrast to prior investigations, the results demonstrated that the ...


    By Inderscience Publishers

  • Optimisation of whole body vibration analysis for suspended cabin tractor semitrailer

    This work has been conducted to find out the health risk associated with suspended cabin tractor semi–trailer driving work. Suspended cabin tractor semi–trailer drivers are exposed to whole body vibration (WBV) during their work. Some drivers suffer from low back pain caused by vibration. The practical significance of applying suspended cabin type of tractor semi–trailer was tested at different ...


    By Inderscience Publishers

  • JNIOSH - reproduction of multi-modal sensation

    The Company On 1 April 2006, the National Institute of Industrial Safety (NIIS) and the National Institute of Industrial Health (NIIH) were amalgamated into a single, administrative institute known as the National Institute of Occupational Safety and Health, Japan (JNIOSH). Of all research institutions under the Japanese Ministry of Health, Labour and Welfare, JNIOSH is one of the top ...

  • The physics of epistemology

    A comprehensive and generalised model of human cognitive processes has been put together by the author based on his research and investigations carried out periodically over an extended period of time. The model is represented by three Venn diagrams. These consist of three fuzzy sets, one representing quantum mechanical processes, one representing pattern recognition processes and one ...


    By Inderscience Publishers

  • Cognitive degradation after exposure to combined noise and whole-body vibration in a simulated vehicle ride

    This study investigated if vehicle noise and whole-body vibrations produce negative after-effects on performance in an attention task and on ratings of alertness, difficulty, and annoyance. The task was applied before and after exposure, and after a rest. Participants had degraded performance immediately after exposure in all conditions, but no effect was found after the rest. No main effect was ...


    By Inderscience Publishers

  • Nonlinear seat cushion and human body model

    This paper presents the nonlinear characteristics of typical automotive seat cushion structure. As discussed in an earlier paper by the authors (Pang et al., 2004), the experimental transfer functions between the seat butt and the seat track vary with changes in the excitation levels. Both the magnitudes and frequencies of the transfer functions shift to smaller values as the excitation ...


    By Inderscience Publishers

  • Model identification for nonlinear automotive seat cushion structure

    This paper presents the nonlinear characteristics of typical automotive seat cushion structures. The experimental transfer functions between the seat butt (upper surface of seat cushion) and the seat track show that the magnitude and frequency decrease as the excitation increases. This indicates that the structure has both nonlinear stiffness and nonlinear damping. This paper develops two ...


    By Inderscience Publishers

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