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Display station anthropometrics: Preferred height and angle settings of CRT and keyboard
Miller, Win,Suther Ill, Thomas-W. The Ergonomics Society of Korea 1986 大韓人間工學會誌 Vol.5 No.2
This study investigates display station physical adjustments preferred by a sample of visual display terminal operators. Participants in the study were selected to assure representation of extremely short and extremely tall persons, as well as persons of midrange physical stature. Individual operators were led through a step-by-step sequence to determine their preferred initial settings of seat height, keyboard height and slope angle, and CRT height and tilt angle. Each operator then performed a brief text input tase, after which final preferred adjustments were measured. Intermeasure correlation strongly suggest that "flat" (low slope angle) keyboards are in appropriate for short operators who select low seat heights. In addition, the keyboard angle adjustments preferred by most operators substantially exceed a current German ergonomic display station requirement.
Juergen Kneissl,Alexander Lion,Felix Breuer,Stefan Pfund,Philipp Wagner,Thomas Ille,Carsten Intra 한국자동차공학회 2022 International journal of automotive technology Vol.23 No.1
The development of commercial vehicle technology is strongly influenced by the trends of new drives and automation. In order to develop new drive train concepts and associated operating strategies, a simulation methodology was created. It includes among others a high-level controller, the torque distributing operation strategy, various drive components, a modular vehicle dynamics model and tire models. The individual components of the methodology are structured in appropriate software tools and are linked by co-simulation methods. The modular structure of the methodology and the fixed parameter transfer allows the exchange, omission and targeted improvement of individual components. Thus, an operation strategy could be developed, which propels different vehicle concepts with optimized traction. It is based on the control allocation approach and includes besides an optimization algorithm also situation-specific weightings of different control objectives. The modular structure of the control approach allows it to be embedded in both central, integratied and decentralized, hirachical control structures. Furthermore, the control of wheel- and axle-selective drive trains as well as the control of fully electric and hybrid driveline concepts is possible with only a few modifications. The potential of the control approach as well as the methodology is demonstrated among others by the driving manoeuvre of a virtual 6 × 6 commercial vehicle with individual wheel drive in a μlow scenario.