Design and Simulation of Banana Pseudo-stem Fibre Extracting Raspador (Cylinder) Using FEA Technique

ABSTRACT

Development of mechanical fiber extractors without considering engineering knowledge can cause failures of the machine’s components during operations. Therefore, the present study was conducted to examine the structural strength of the banana pseudo-stem fiber-extracting raspador using finite element analysis. For measuring the force required to extract the fibers, a measuring setup along with an embedded system was developed using the ATmega328P microcontroller, DYMH-103 load cell, and 24-Bit ATD converter, and it was found that an average of 99.09 N force was required to scratch the fibers from single pseudo-stem sheath. Three computer-aided design (CAD) models of raspador having tip angles of blades of 25°, 35°, and 45° were developed in the Creo-Parametric software and simulated in the Ansys® software using three material properties, i.e. high-carbon steel, medium-carbon steel, and low-carbon steel. The results of both static structural analysis and explicit dynamics simulation analysis suggested that the CAD model with 45° tip angle of blade having low-carbon steel has a higher value of total deformation and maximum principal stress and a comparatively lower value of equivalent elastic strain than other models and under the yield limit of the parent material. Hence, it may be used for the development of a prototype of a banana pseudo-stem fiber-extracting machine.

摘要

在不考虑工程知识的情况下开发机械纤维提取器可能会导致机器部件在操作过程中出现故障. 因此，本研究采用有限元分析方法对香蕉假茎纤维提取覆盆子的结构强度进行了检测. 为了测量提取纤维所需的力，使用ATmega328P微控制器、DYMH-103称重传感器和24位ATD转换器开发了一个测量装置和嵌入式系统，发现从单个伪茎鞘上刮取纤维平均需要99.09 N的力. 在Creo-参数化软件中开发了叶片尖端角度为25°、35°和45°的raspador的三个CAD模型，并在Ansys®软件中使用三种材料财产进行了模拟，即高碳钢、中碳钢和低碳钢. 静态结构分析和显式动力学仿真分析结果表明，在母材屈服极限下，低碳钢叶片45°顶角CAD模型的总变形和最大主应力值高于其他模型，等效弹性应变值相对较低. 因此，它可以用于开发香蕉假茎纤维提取机的原型

KEYWORDS:

• CAD
• total deformation
• maximum principal stress
• banana pseudo-stem
• static structural analysis
• explicit dynamics structural analysis

关键词:

• 总变形
• 最大主应力
• 香蕉假茎
• 静态结构分析
• 显式动力学结构分析

Acknowledgements

The authors are thankful to the Director, ICAR-Natural Fibre Engineering and Technology, Kolkata, for providing the necessary resources for executing the research work.

Disclosure statement

No potential conflict of interest was reported by the authors.

Ethical approval

We would like to inform you that we took the approval from the competent authority for submitting the research paper to the journal.