No abstract

It is the key to accurately obtain participants' emotional responses to product color for the product color emotional design. However, traditional research rarely studies participant's internal emotion cognition and changing mechanism. In this article, a color emotional design method based on eye movements and event‐related potentials is proposed. Participative behavior experiment, eye movement, and event‐related potentials were carried out. Participants evaluated the electric iron pictures with different color layout and color number to obtain participants' participative feelings before eye movement and ERPs experiment. The results showed that three‐color samples were more popular than two‐color samples, and the participants' emotions were more positive when the color blocks were evenly distributed. The larger the pupil diameter in the eye movement data, the more positive the participants felt. Participants responded quickly to positive and negative stimuli when shown the two‐color samples, and the average amplitude of the early components P1 and N2 exhibited significant changes. For the three‐color samples, the average amplitude changes of positive and neutral states of participants mainly occurred in N2 and P3 components. However, there were no significant changes in the negative state. The combination of participative and objective methods is expected to offer an important basis for the research of color emotional design method based on color layout and color number, and to provide reliable indicators for the future analysis of physiological data and product color evaluation models.

Because the judgment basis in the process of biological prototype screening is highly subjective, and because it is difficult to generate a scheme when using multiple biological prototypes for bionic design, this work proposes a biological prototype retrieval and matching method for multibiological prototype bionic design. Using BioTRIZ in combination with biological coupling mechanism analysis, orthogonal analysis, and the calculation of the goodness value of the scheme, a multibiological prototype bionic design model is constructed. First, the biological prototype contradictions matrix is obtained by BioTRIZ. Then, a biological coupling mechanism analysis is carried out to calculate the goodness value of the auxiliary scheme to further evaluate the advantages and disadvantages of the biological prototype. The orthogonal analysis is then conducted to select the optimal biological prototype combination scheme. Finally, the best biological prototype combination scheme is transformed into the final design scheme according to the biological coupling mode prompts. According to this process, the innovative design of an automatic food threading machine was carried out, and an experiment was conducted for verification. The results demonstrate that the machine after bionic improvement could meet the design requirements, and the feasibility and effectiveness of the established design model were verified.