Cushioning Performance of the Biomimetic Cobweb Cushioning Silicone Pad

Abstract

At present, the packing method of “plastic bag–buffer packing–packing paper box” is adopted for bearing packaging. However, the common packing method has a poor packing effect and poor versatility. In this study, a new biomimetic cobweb cushion is proposed to solve the problem of insufficient cushioning capacity of high-precision bearing cushion packaging pads. First, according to the nature of cobweb form, the cobweb cushion structure configuration is determined. Next, based on the structure of the cushion and the relationship between the parameters of radial thread and spiral thread, a mechanical and target optimization model is established. The stress nephogram of bearing and the cobweb cushion are analyzed under three drop heights of 381, 610, and 700 mm, in the finite element simulation software to ensure that the maximum bearings stress is not beyond the material yield strength. Via the 3D printing technology, a cobweb cushion shell cast is made. Drop tests of the bearing were performed, and the results were verified with the finite element simulation analysis. This research can provide technical support for the protection of high-precision bearings from accidental drops during transportation.

From Biological Gene to Functional Gene: Revolutionizing Product Innovation Design

“…Biological knowledge has significant implications for engineering design [10], such as bio-inspired fatigue-resistant design [11], lightweight design [12], design analogy to nature engine [13], multiple biological effects [14], and so on. In the field of genetics, genes are composed of nucleotide sequences that contain genetic information, and they control the development and expression of traits in organisms [15].…”