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This paper aims to propose an integrated bionic optimal design system to assist engineers in bionic design tasks. In this age of ecological awareness and sustainability, engineers are increasingly applying bionics to their product designs. A recent surge of research on bionics has presented new opportunities and challenges. To deal with these challenges, an integrated design system equipped with the capabilities of conducting biologically inspired design, solving technical contradictions, optimizing design parameters and verifying design effectiveness is required.

This study proposes a two-level analysis to help decision makers conduct multi-faceted observation and assessment on conceptual bionic design. The contradictions incurred when transferring biological principals to engineering design are solved using BioTRIZ, and the conceptual design is then created. This study conducts computer-aided engineering analysis, incorporating the Taguchi method and TOPSIS method, to obtain the optimal design of bionic products.

The proposed design process focuses on improving the product structure instead of changing the materials, and thus, the authors are able to put the goals of saving energy, environmental protection and sustainability into practice.

Through the design and analysis processes, the authors prove that their designed bionic-fan can effectively enhance operational efficiency and reduce the aerodynamic noise. The system can provide a practical tool for engineers intending to accomplish complete designs and verifications using bionics.

Most existing design methodologies that have attempted to combine biology with engineering design have fallen short in their level of thoroughness. This study proposes a complete bionic design system by integrating the processes of bionic-inspired design, optimization and verification.

This paper's main objective is to focus on the water-harvesting ability of plants and try to implement a solution-based method to outline a plant-inspired design framework.

The current paper aims to provide a step-by-step approach to the biological-inspired design by looking deeply at plants' mechanisms and features to harvest water and conduct a method to learn them in an organized way.

In addition to the proposed framework, the fundamental water-harvesting principles of plants including increasing condensation, reducing transpiration and facilitating transportation have been extracted by investigating several adaptable plants. The relevant factors related to each of these three principles are introduced and can potentially ease the process of bio-inspiration as it contributes to the findability and understandability of a particular biologic strategy. As a result, this framework can be used to the formation of novel designs in different disciplines. In this process, the development of an architectural design concept is presented as an example.

The current global issue about the shortage of water leads researchers to learn adaptability from nature and increase the demands of using bio-inspired strategies. The novelty of this study is to introduce a water-harvesting design path, which has been presented using a four-step-plant-to-design process. Learning from plants' water-harvesting strategies will contribute to efficiency in different disciplines. The findings of this study have important implications for developing bio-inspired water-harvesting materials and systems. Moreover, the findings add substantially to the understanding of water-harvesting architecture and play an important role in bridging the gap between theory and practice.