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Volume 26, Issue 2
Displaying 1-6 of 6 articles from this issue
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Effects of the coupling factor and study of human operator modelTetsuro EMA1990 Volume 26 Issue 2 Pages 59-66
Published: April 15, 1990
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThis paper deals with the investigation of the human control behaviors in the two-axis control situations and the development of models of the human controller which takes into account both the monitoring and control function. The experiments are performed in which it is required to monitor the two separated displays and to drive the two control devices. The performances are measured as a function of the control element coupling factor and the forcing function. The human control behaviors are compared to those of the human operator model which is suggested in this paper. The results show that the performance of human operator model agrees very well with the control of the human controller.View full abstractDownload PDF (3630K) -
Nami UEMATSU, Hiroko TANAKA, Takuko YANASE1990 Volume 26 Issue 2 Pages 67-73
Published: April 15, 1990
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThe visual effects of the colour of furniture contiguous to the wall are estimated for the purpose of creating a comfortable atmosphere by using a 1/10 scaled room model. The effects of the colour, height, and width of furniture and kinds of lights source are examined experimentally, and the psychological room-atmosphere in the living room is evaluated on 20 seven-point SD scales. Three dimensions “evaluation”, “activity” and “warmness” are extracted by a factor analysis.
As the result of the quantitative analysis of Hayashi and analysis of variance, “evaluation” is influenced to a greater by the colour of furniture, “activity” by the colour, height and width of furniture, “warmness” by the colour of furniture and kinds of lights source. The height, width and colour of furniture, and kinds of lights source have mutual effects upon the room-atmosphere.View full abstractDownload PDF (3978K) -
Osamu SUENAGA, Motozo IHARA1990 Volume 26 Issue 2 Pages 75-80
Published: April 15, 1990
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSMan-machine systems reduced the influence of individual difference are proposed by utilizing the model-following servo systems which make the plant output agree with the model output. Firstly, the mean frequency response of human operators was measured on a compensatory manual tracking systems, and the human transfer function model was determined to fit the mean frequency response. Next, the model-following servo systems (MF systems) were structured for the plant and the model whose characteristics were identical with the measured human transfer function model. Then, on MF systems replaced the plant with the human operator, the frequency response from the human transfer function model input to the human operator output was measured. As the result, the obtain frequency response is agree with one of the human transfer function model independent of the human operator, and the influence of individual difference is reduced.
The proposed algorithms of MF systems give satisfactory results in experiment for the reduction of influence of individual difference on man-machine systems.View full abstractDownload PDF (657K) -
Norimasa YAMADA1990 Volume 26 Issue 2 Pages 81-86
Published: April 15, 1990
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThe patterns of manifestation of torques acting on the body joints during movement are different for each joint. Even for a body movement with a definite objective, the role of each joint is different. In this paper calculations were made of the torques acting on the joints of the upper limb during the golf swing movement. These joints were the wrist joint and the shoulder joint, the proximal and the distal joint of the upper limb respectively. Through analysis of the origin of the torque, the difference in the roles of the two joints during the golf swing was clarified.View full abstractDownload PDF (741K) -
Naotake HIRASAWA, Kageyu NORO, Hidenori TOGAMI1990 Volume 26 Issue 2 Pages 87-93
Published: April 15, 1990
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSVDT components were studied to see if they could comprehensively accommodate individual operators under the physical conditions of the individual operators. A simulation method was developed whereby conventional VDT recommendations are described by mathematical equations and the body dimensions of an operator are substituted into the mathematical equations to see if the VDT components are suited for the operator. The model study found that work tables of the 70-cm height specified in JIS S 1010 do not accommodate over 95% of Japanese adults indicated the need for work tables of such a height that can meet the body dimensions of individual operatorsView full abstractDownload PDF (806K) -
Jun MINAGAWA1990 Volume 26 Issue 2 Pages 95-99
Published: April 15, 1990
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSIt is well known that retrieving sequence from long-term memory approximately follows the exponential distribution. The initial divergence from this distribution that occurs frequently supposed to be a result of activation in a single retrieval. Therefore investigating the process of activation is greatly useful to derive an equation which represents the retrieval process with activation. Usual retrieval experiments were carried out to find two parameters changed systematically when data adopted to make up theoretical curves were replaced systematically, and a new equation was derived, from which experimental data showed little divergence. It also predicted the latter half of the sequence from the data of the first half.View full abstractDownload PDF (532K)
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