Design & Research of People-Oriented Office Chair

2012 ◽  
Vol 591-593 ◽  
pp. 236-240
Author(s):  
Hai Bo Yang ◽  
Yu Tao Feng

Measurement method and model method are adapted to analyze harmonious relations between people in the sedentary state and office chairs in various parts by starting from human design perspective of the product and using ergonomics knowledge. The research aims to settle down the technical problems which related to design fitness by correctly applying the ergonomics theory. During design process should study and summarize the user-friendly design elements of health office chairs, methods and performance evaluation as well.

2013 ◽  
Vol 274 ◽  
pp. 517-522 ◽  
Author(s):  
Hai Bo Yang ◽  
Shu Guang Sang ◽  
Yu Tao Feng

Starting from human design perspective of the product and using ergonomics knowledge, measurement method and model method are adapted to analyze harmonious relations between people in the sedentary state and office chairs in various parts. The research aims at how to correctly apply the theory of ergonomics in the design of new product development to ensure that the technical problems related to design fitness. And for the “Chair family ”--- the sedentary population, the user-friendly design elements of health office chairs, methods and performance evaluation are studied and summarized as well.


Author(s):  
Liye Zhang ◽  
Yong He ◽  
Shoushan Cheng ◽  
Guoliang Wang ◽  
Hongwei Ren ◽  
...  

<p>With the number of bridges increases, the bridge health monitoring (BHM) technique is developing from single bridge monitoring to collaborative supervision of bridge group. Therefore, there are many technical problems need to be solved especially the performance evaluation index for bridge group network. This paper analyses the performance evaluation index of the bridges and bridge group network, establishes the performance evaluation index for bridge group based on rating factor (RF) and technical condition evaluation index. Based on bridge field testing and monitoring data, bridge technical condition evaluation index and performance evaluation method for bridge group are proposed. A case study demonstrates that the research results provide support for bridge group networking monitoring and collaborative supervision.</p>


2013 ◽  
Vol 13 (22) ◽  
pp. 5255-5259
Author(s):  
Jin Wang ◽  
Xiaodong Zhang ◽  
Shuo Zhang ◽  
Yingzi Li

Author(s):  
Manuel Fritsche ◽  
Philipp Epple ◽  
Antonio Delgado

Positive Pressure Ventilation (PPV) fans are used by fire departments. The specified performance data differ depending on the manufacturer, as there is no international and commonly accepted standardized measuring method for evaluating the PPV fan performance. In the present work a new measurement method for the classification and performance evaluation of PPV fans is proposed. These fundamental investigations are based on numerical simulations and experimental test studies. The simulations have been performed with the commercial CFD software ANSYS CFX and the test measurements have been carried out on a newly developed test rig. For the predesign of the measurement method, the flow behavior of a free jet with swirl has been investigated with CFD simulations. A special feature of the PPV fans is that the generated flow rate is not only due to the flow through the rotating impeller, but also a significant flow rate is generated outside the PPV fan due to the viscous shear stresses (principle of a viscous jet pump). For the measurements a new test rig has been designed in order to measure the flow velocity of the PPV fan as it is in real firefighter’s fire combat situations. The new test rig design concept and the numerical and experimental results of these studies are presented in detail in this work.


2013 ◽  
Vol 5 (2) ◽  
pp. 92-105
Author(s):  
Achim Menges

Computation, in its most basic meaning, refers to the processing of information. In this way, both machinic processes operating in the binary realm of the digital, as well as material processes operating in the complex domain of the physical can be considered computational. While there is a strong bias towards the former in contemporary design, sporadic investigations of the later have also occurred in architecture. What is more rarely explored, though, is the territory where machine computation and material computation potentially overlap, where they not simply co-exist but intensely interact in the design process. Such an integrative approach to machine and material computation forms a central part of the research pursued at the Institute for Computational Design at the University of Stuttgart. This paper will introduce the related design research through the presentation of three research projects. The first part of the paper focuses on the explanation of the theoretical framework of the Institute's approach to design computation, which finds its conceptual roots in the integrative processes of biological becoming rather than the striated processes of established technological production. It seeks to outline novel possibilities for a higher level of integration of form, information and performance in architecture through the possible synthesis of machine and material computation in morphogenetic design. The second part of the paper will provide specific examples of such a computational approach by introducing three related research areas. The possible integration of material behaviour as an active driver in computational design processes will be introduced through a first research project focusing on bending-active structures constructed from thin plywood lamellas. The second research project constitutes an example for the integration of materialization characteristics by encoding the possibilities and limits of robotic fabrication for modular wood shell structures in design computation. The third research project introduces the integration of material structure by embedding the complex reciprocities of form, material, structure and performance resulting from robotic carbon and glass fibre filament winding in a generative morphogenetic design process.


2014 ◽  
Vol 599-601 ◽  
pp. 1801-1806
Author(s):  
Pu Zhong Ouyang ◽  
Zhong Hua Zhang ◽  
Jing Yu Sun

By using the waveform measurements and the least square method, the duration of transient level, and the duration of transient decreasing segment of aircraft DC transient signal are evaluated precisely. The evaluation courses and some technical problems are discussed in detail, the uncertainty analysis both of the durations are presented. Some test results have proved the effectiveness and practicability of the method. It could be applied to the characteristic and performance evaluation of aircraft DC transient signal waveform generators.


2016 ◽  
Vol 11 (1) ◽  
pp. 34
Author(s):  
Maral Babapour Chafi

Designers engage in various activities, dealing with different materials and media to externalise and represent their form ideas. This paper presents a review of design research literature regarding externalisation activities in design process: sketching, building physical models and digital modelling. The aim has been to review research on the roles of media and representations in design processes, and highlight knowledge gaps and questions for future research.


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