Academia.eduAcademia.edu

Figure 4 – uploaded by A. Abedian

See full PDFdownloadDownload figure
Application of modified digital logic method to cryoneic tank problem

Table 4 Application of modified digital logic method to cryoneic tank problem

Related Figures (11)

__ positive desicions a BOE Meee Determination of relative importance of performance goals using the DL method [1 Table |
__ positive desicions a BOE Meee Determination of relative importance of performance goals using the DL method [1 Table |
Fig. 1. A schematic representation of non-linear normalization func- tions for those properties for which a higher value is desirable.
Fig. 1. A schematic representation of non-linear normalization func- tions for those properties for which a higher value is desirable.
* ee positive desicions, N= 2n(n _ 1). Determination of relative importance of performance goals in the proposed method Table 2
* ee positive desicions, N= 2n(n _ 1). Determination of relative importance of performance goals in the proposed method Table 2
A similar approach can be followed for the properties for which a lower value is desirable. Eq. (5) is schemat- ically plotted in Fig. 2. Again, the boundary conditions are Y=+100 at ¥= Xnin and Y= —100 at X¥ — +co. The critical value for the intended property is X= X, at Y=0. The three needed constants are calculated as: Fig. 2. A schematic representation of non-linear normalization func- tions for those properties for which a lower value is desirable.
A similar approach can be followed for the properties for which a lower value is desirable. Eq. (5) is schemat- ically plotted in Fig. 2. Again, the boundary conditions are Y=+100 at ¥= Xnin and Y= —100 at X¥ — +co. The critical value for the intended property is X= X, at Y=0. The three needed constants are calculated as: Fig. 2. A schematic representation of non-linear normalization func- tions for those properties for which a lower value is desirable.
Application of digital logic method to cryoneic tank problem [1]
Application of digital logic method to cryoneic tank problem [1]
Properties of candidate materials for cryogenic tank [1] * Toughness index,7, is based on UTS, yield strength YS, and ductility e, at -196 °C. T=(UTS + YS)e/2. > Thermal expansion coefficient is given in 10~°/°C. The values are averaged between RT and —196 °C. © Thermal conductivity is given in cal/cm?/cm/°C/s. 4 Specific heat is given in cal/g/°C. The values are averaged between RT and —196°C.
Properties of candidate materials for cryogenic tank [1] * Toughness index,7, is based on UTS, yield strength YS, and ductility e, at -196 °C. T=(UTS + YS)e/2. > Thermal expansion coefficient is given in 10~°/°C. The values are averaged between RT and —196 °C. © Thermal conductivity is given in cal/cm?/cm/°C/s. 4 Specific heat is given in cal/g/°C. The values are averaged between RT and —196°C.
Performance index and ranking of candidate materials according to two methods Table 6
Performance index and ranking of candidate materials according to two methods Table 6
Application of digital logic method to an HPA spar problem Table 7
Application of digital logic method to an HPA spar problem Table 7
Performance index and ranking of candidate materials according to two methods
Performance index and ranking of candidate materials according to two methods
Properties of candidate materials for an HPA spar Table 9
Properties of candidate materials for an HPA spar Table 9
Application of modified digital logic method to an HPA spar problem Table 8
Application of modified digital logic method to an HPA spar problem Table 8
Related topics:
Mechanism DesignMaterials DesignDigital Logic
580 California St., Suite 400
San Francisco, CA, 94104
© 2025 Academia. All rights reserved