A New Ride Comfort Meter

Kozawa, Yoshihiko; Sugimoto, Gunji; Suzuki, Yusuke

doi:10.4271/860430

Cited by 4 publications

(4 citation statements)

References 4 publications

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“…According to Ref. [25], the comfort-determining vibrations lie in the vehicle's pitching plane, i.e., the plane within which the vehicle rotates around its lateral axis. Said plane includes the cruise (longitudinal) and heave (vertical) translations as well as the pitch rotation.…”

Section: Modelingmentioning

confidence: 99%

“…Quite a few references were investigated to obtain the required stiffness and damping parameters, including but not limited to Refs. [22][23][24][25]27,44,45]. It was observed that they did not agree on the lumping strategy for defining the parameters or on the parameter values themselves.…”

Section: Parameter Investigationmentioning

confidence: 99%

“…Kim et al [24] determined the necessary number of lumps to consider in a model that would correspond well with experimental tests in terms of vibration transmissibility. Kozawa et al [25] showed that seated vehicle passengers feel the most discomfort due to the vertical vibrations from the seat's hip cushion and vertical/longitudinal vibrations from the seat's backrest cushion, and not those that come in through the feet.…”

Section: Introductionmentioning

confidence: 99%

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A Biomechanical Model of a Vehicle Passenger in the Sagittal Plane

Akbari

Margolis

2023

Preprint

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Section: Modelingmentioning

confidence: 99%

Section: Parameter Investigationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Biomechanical Model of a Vehicle Passenger in the Sagittal Plane

Akbari

Margolis

2023

Preprint

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“…A portable ride comfort meter was developed and presented in 1986 by Kozawa et al [83] giving an index called the vibration number (VN) as an objective measure of vibrational comfort of passengers. To develop this apparatus, a subjective evaluation test of whole-body vibration was carried out using a dual-axis vibration table.…”

Section: Sensors and Analysersmentioning

confidence: 99%

Measurements of comfort in vehicles

Silva

2002

Meas. Sci. Technol.

114

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Recently, several factors have contributed to an increase in interest in the evaluation of comfort experienced by passengers in vehicles. Due to rising mobility, the time that people spend in vehicles has grown substantially. The criteria applied by consumers have changed on account of generally heightened expectations, resulting in a growing demand for enhanced ride comfort. Also, there are marketing factors, from the car manufacturers' point of view, because differentiation between models in the same market segment is becoming more difficult to establish on grounds of performance or aesthetics. The comfort experienced by humans in a given environment can be classified as a subjective assessment, because it is possible to find a considerable variation in responses of different people to the same situation. Nevertheless, the factors on which the opinions of people on comfort level are based are physical variables that characterize the surroundings, e.g. temperature, air velocity, acceleration, and light intensity. So, the first step in any assessment is to list the different kinds of stimulus that can be detected by human senses and judged a cause of annoyance, leading thus to a sensation of discomfort. In the case of passengers riding in vehicles, the following are the main aspects that should be considered: temperature, air quality, noise, vibration, light, and ergonomics. Many different measuring and evaluation methods have been developed to study the comfort of occupied spaces, involving one or more of the aforementioned stressors. Besides discrete measured values of relevant physical parameters, comfort indices related to human sensitivity and weighting the influences of different variables have also been built in for each kind of stimulus. Subjective assessments from evaluation panels are also extensively used. Because researchers are conscious of the importance of the interaction between the passengers and the environment, various measuring mannequins with the capability of simulating some human functions, e.g. thermal regulation or breathing, have been developed.

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Objective measurement of the start-motion quality of a forklift truck

Jang

Kook

2004

Applied Ergonomics

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A New Ride Comfort Meter

Cited by 4 publications

References 4 publications

A Biomechanical Model of a Vehicle Passenger in the Sagittal Plane

A Biomechanical Model of a Vehicle Passenger in the Sagittal Plane

Measurements of comfort in vehicles

Objective measurement of the start-motion quality of a forklift truck

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