Determination of the prey impact region in a spider orb-web from in-plane vibration

作者：

Highlights：

• We study the inverse problem of locating a prey in a spider orb-web from measurements of the in-plane dynamic response of the web immediately after the impact.

• A reconstruction algorithm for the impact region is proposed.

• The results show that the information gathered by the spider positioned at the center of the web is sufficient for a precise localization of the prey.

• The simulations show that the sensitivity of the reconstruction to errors on the data is significant only when the observation time is close to the theoretical minimum time.

• When the observation time is the order of a few tens of milliseconds the information available to the spider from the in-plane response of the web is sufficient for a precise determination of the prey’s impact region.

摘要

•We study the inverse problem of locating a prey in a spider orb-web from measurements of the in-plane dynamic response of the web immediately after the impact.•A reconstruction algorithm for the impact region is proposed.•The results show that the information gathered by the spider positioned at the center of the web is sufficient for a precise localization of the prey.•The simulations show that the sensitivity of the reconstruction to errors on the data is significant only when the observation time is close to the theoretical minimum time.•When the observation time is the order of a few tens of milliseconds the information available to the spider from the in-plane response of the web is sufficient for a precise determination of the prey’s impact region.

论文关键词：Identification of sources,Reconstruction algorithm,Vibrations,Finite element analysis,Membrane,Spider orb-web

论文评审过程：Received 25 January 2021, Revised 13 December 2021, Accepted 11 January 2022, Available online 3 March 2022, Version of Record 3 March 2022.

论文官网地址：https://doi.org/10.1016/j.amc.2022.126947