Abstract
In this study, we design a lightweight antenna-supporting structure for a vehicle-mounted radar system using a multiphase design exploration method. In the first phase of the approach, structural topology within a given design domain is optimized in order to reduce the weight and increase the structural integrity applying various design scenarios, which provides several preliminary structural layouts. Inspecting the commonalities and differences of the preliminary layouts, key shape (i.e., geometry) parameters in an initial layout to be further explored are chosen. In the second phase, design variables, the chosen shape parameters and properties of its material are concurrently explored to satisfy the given system requirements. For the concurrent design exploration of the materials and structures, the inductive design exploration method is employed for obtaining feasible ranged sets of design variables, instead of a single optimum solution. In this way, a designer may simply make a robust choice among the feasible sets under various sources of uncertainties and multiple performance requirements.
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Abbreviations
- VMRS:
-
Vehicle-mounted radar system
- ATC:
-
Air traffic control
- IDEM:
-
Inductive design exploration method
- IMPD:
-
Integrated materials and product design
- SIMP:
-
Solid isotropic microstructure with penalty
- HD-EMI:
-
Hyper-Dimensional error margin index
- r :
-
Radius [mm]
- t :
-
Thickness [mm]
- ρ :
-
Density [kg/m3]
- σ y :
-
Yield strength [MPa]
- M :
-
Total mass of antenna-supporting structure [kg]
- S.F.:
-
Safety factor of antenna-supporting structure
- B j :
-
Discrete point vector on a constraint boundary
- B i j :
-
Projected vector of B j along the i direction on the nearest boundary of an output range
- u i :
-
Unit vector along the i direction
- mean :
-
Vector of the mean of an output range
References
Cady, W. M., Karelitz, M. B., and Turner, L. A., “Radar Scanners and Radomes,” 1st Ed., McGraw-Hill, 1948.
Moon, S. K., Tan, Y. E., Hwang, J., and Yoon, Y.-J., “Application of 3D Printing Technology for Designing Light-Weight Unmanned Aerial Vehicle Wing Structures,” Int. J. Precis. Eng. Manuf.-Green Tech., Vol. 1, No. 3, pp. 223–228, 2014.
Lyu, M.-Y. and Choi, T. G., “Research Trends in Polymer Materials for Use in Lightweight Vehicles,” Int. J. Precis. Eng. Manuf., Vol. 16, No. 1, pp. 213–220, 2015.
Lee, K.-K., Ro, Y.-C., Kim, Y.-G., Lee, K.-H., and Han, S.-H., “Shape Optimization for Light Weight Design of Direct-Drive Generator in Large-Scale Wind Turbine,” Int. J. Precis. Eng. Manuf., Vol. 15, No. 10, pp. 2101–2108, 2014.
Bendsoe, M. P. and Sigmund, O., “Topology Optimization: Theory, Methods and Applications,” Springer Science & Business Media, 2003.
Choi, H.-J., Mcdowell, D. L., Allen, J. K., and Mistree, F., “An Inductive Design Exploration Method for Hierarchical Systems Design under Uncertainty,” Engineering Optimization, Vol. 40, No. 4, pp. 287–307, 2008.
Choi, H., McDowell, D. L., Allen, J. K., Rosen, D., and Mistree, F., “An Inductive Design Exploration Method for Robust Multiscale Materials Design,” Journal of Mechanical Design, Vol. 130, No. 3, pp. 031402, 2008.
Mc-Dowell, D. L., Panchal, J., Choi, H.-J., Seepersad, C., Allen, J., et al., “Integrated Design of Multiscale, Multifunctional Materials and Products,” Butterworth-Heinemann, 2009.
Bendsøe, M. P. and Kikuchi, N., “Generating Optimal Topologies in Structural Design Using a Homogenization Method,” Computer Methods in Applied Mechanics and Engineering, Vol. 71, No. 2, pp. 197–224, 1988.
Saxena, A. and Ananthasuresh, G., “On an Optimal Property of Compliant Topologies,” Structural and Multidisciplinary Optimization, Vol. 19, No. 1, pp. 36–49, 2000.
Gea, H. C., “Topology Optimization: A New Microstructure-Based Design Domain Method,” Computers & Structures, Vol. 61, No. 5, pp. 781–788, 1996.
Wang, M. Y., Wang, X., and Guo, D., “A Level Set Method for Structural Topology Optimization,” Computer Methods in Applied Mechanics and Engineering, Vol. 192, No. 1, pp. 227–246, 2003.
Jang, S., Park, Y., and Choi, H.-J., “Integrated Design of Aluminum Foam Processing Parameters and Sandwich Panels under Uncertainty,” Proc. of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, pp. 0954406214558341, 2014.
Ashby, M. F. and Cebon, D., “Materials Selection in Mechanical Design,” Le Journal de Physique IV, Vol. 3, No. 7, pp. 7–9, 1993.
Cressie, N., “Statistics for Spatial Data: Wiley Series in Probability and Statistics,” Wiley: New York, 1993.
Mc-Kay, M. D., Beckman, R. J., and Conover, W. J., “Comparison of Three Methods for Selecting Values of Input Variables in the Analysis of Output from a Computer Code,” Technometrics, Vol. 21, No. 2, pp. 239–245, 1979.
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Jang, S., Goh, C.H. & Choi, HJ. Multiphase design exploration method for lightweight structural design: Example of vehicle mounted antenna-supporting structure. Int. J. of Precis. Eng. and Manuf.-Green Tech. 2, 281–287 (2015). https://doi.org/10.1007/s40684-015-0034-7
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DOI: https://doi.org/10.1007/s40684-015-0034-7