摘要
The explosive demands for facial masks as vital personal protection equipment(PPE)in the wake of Covid-19 have challenged many industries and enterprises in technology and capacity,and the piezoelectric ceramic(PZT)transducers for the production of facial masks in the welding process are in heavy demand.In the earlier days of the epidemic,the supply of ceramic transducers cannot meet its increasing demands,and efforts in materials,development,and production are mobilized to provide the transducers to mask producers for quick production.The simplest solution is presented with the employment of Rayleigh-Ritz method for the vibration analysis,then different materials can be selected to achieve the required frequency and energy standards.The fully tailored method and results can be utilized by the engineers for quick development of the PZT transducers to perform precise function in welding.
Covid-19爆发后,口罩作为重要个人防护装备,其需求呈爆炸式增长,挑战相关制造业的技术和产能。生产口罩焊接过程中对压电陶瓷换能器的需求亦大幅增加。为保证陶瓷换能器能满足快速生产所需要的技术要求,本文采用瑞利-里茨方法对压电陶瓷进行振动分析,得到最简单的解,并通过选择不同的材料,分析对比它们达到所需频率和能量标准的重要参数。所提出的方法和最终获得的数据结果可供工程师快速开发压电陶瓷传感器,从而在口罩焊接或其他类似材料的焊接中达到标准要求。
基金
supported in part by the National Natural Science Foundation of China(No.11672142)
the Technology Innovation 2025 Program of the Municipality of Ningbo(No.2019B10122)。
