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Software Analysis of the Harmonic Response of Orange Fruit to Determine Natural Frequencies to Prevent Damage During Transportation | ||
| تحقیقات سامانهها و مکانیزاسیون کشاورزی | ||
| Volume 25, Issue 89, April 2024, Pages 69-84 PDF (1.45 M) | ||
| Document Type: Original Article | ||
| DOI: 10.22092/amsr.2025.367934.1508 | ||
| Authors | ||
| vahid kahrizi* 1; Ebrahim Ahmadi2; Ali Reza Shoshtari3 | ||
| 1Manager | ||
| 2Professor, Department of Biosystems Engineering, Faculty of Agriculture, Bu-Ali Sina, Hamadan, Iran. Email: eahmadi@basu.ac.ir | ||
| 3Professor,Department of Mechanical Engineering, Faculty of Engineering, Bu-Ali Sina University, Hamedan, Iran. | ||
| Abstract | ||
| The design and development of agricultural machinery is directly related to the biological properties of agricultural products. Without knowledge of the dynamic properties, engineers and designers must use experimental methods to design agricultural machinery and equipment, which is inefficient in terms of time and cost. The aim of this study is to identify the natural frequencies in two small and large groups of Thomson oranges using finite element modal analysis and harmonic response function using ANSYS software. To obtain the data required for simulation, an impact test was performed with a pendulum device. A three-dimensional geometric model of the orange was drawn in ANSYS software, and the physical and mechanical properties of the peel and flesh of the orange were determined separately. In order to validate the natural frequencies obtained from the modal analysis using harmonic response analysis and triaxial accelerometer data by determining the frequency range and also entering the accelerometer data values into ANSYS software, a natural frequency versus acceleration diagram was drawn. The difference between experimental frequencies and modal analysis for both groups is highly reliable, so that the coefficient of determination (R2) resulting from the comparison of experimental frequencies and modal analysis for large and small group oranges is 0.9559 and 0.9682, respectively. Therefore, the finite element model and experimental method used in this study can be used as a cost-effective and reliable method for designing orange fruit harvesting machines and optimizing post-harvest and transportation mechanisms. | ||
| Keywords | ||
| Dynamic Damage; Natural Frequency; Post-Harvest Mechanisms; Vibration Modes | ||
| References | ||
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