Peony multi-mode vibration seedling separation mechanism and experimental study

IF 3.9 2区农林科学 Q1 AGRONOMY

Plant and Soil Pub Date : 2025-04-16 DOI:10.1007/s11104-025-07424-4

ZhengDuo Liu, Yourui Huang, Binjun Zhou, Dong Xu

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引用次数: 0

Abstract

Background and aims

Manual separation of bare seedlings for peony planting is a challenging issue in the industry due to high labor consumption and low productivity. The study focuses on the interaction relationships between seedling-seedling and mechanism-seedling as well as the separation mechanism within a vibration field, aiming to provide new ideas for automated peony transplanting.

Methods

Firstly, based on the vibration characteristics of materials, a flexible vibration platform is designed, and a virtual prototype model of the mechanism is established. The optimization of flexible mechanism parameters for achieving multi-mode vibration is then conducted. Subsequently, through studying the morphological characteristics of bare peony seedlings, the stages of seedling separation are defined, and a multi-mode vibration seedling separation method is determined using analytical analysis. This separation involves seedling cluster throwing motion for dispersion and sliding motion for separation.Simulation analysis reveals the inherent relationship between device structural parameters, operation parameters, and the degree of seedling separation.

Results

Field test results show that, with a throwing frequency of 14.4 Hz, a sliding frequency of 7.7 Hz, the highest success rate of peony seedling separation is 87.6%, which can adequately meet agricultural production needs.

Conclusion

This research provides a theoretical basis and methodological support for developing automatic seedling separation equipment for peonies or other elongated bare seedlings.

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牡丹多模振动育苗分离机理及试验研究

背景与目的牡丹裸苗人工分离技术由于劳动消耗大，生产率低，一直是牡丹种植行业的难题。重点研究了振动场中苗-苗、机-苗的相互作用关系及分离机理，旨在为牡丹自动化移栽提供新思路。方法首先，根据材料的振动特性，设计了柔性振动平台，建立了机构的虚拟样机模型；然后对实现多模态振动的柔性机构参数进行了优化。随后，通过对牡丹裸苗形态特征的研究，确定了牡丹裸苗的分苗阶段，并通过分析确定了多模振动分苗方法。这种分离包括抛掷种子簇的分散运动和滑动分离运动。仿真分析揭示了装置结构参数、操作参数与苗分离程度之间的内在关系。结果大田试验结果表明，在抛掷频率14.4 Hz、滑动频率7.7 Hz的条件下，牡丹分苗成功率最高可达87.6%，可充分满足农业生产需要。结论本研究为开发牡丹或其他细长裸苗自动分苗设备提供了理论依据和方法支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plant and Soil 农林科学-农艺学

CiteScore

8.20

自引率

8.20%

发文量

543

审稿时长

2.5 months

期刊介绍： Plant and Soil publishes original papers and review articles exploring the interface of plant biology and soil sciences, and that enhance our mechanistic understanding of plant-soil interactions. We focus on the interface of plant biology and soil sciences, and seek those manuscripts with a strong mechanistic component which develop and test hypotheses aimed at understanding underlying mechanisms of plant-soil interactions. Manuscripts can include both fundamental and applied aspects of mineral nutrition, plant water relations, symbiotic and pathogenic plant-microbe interactions, root anatomy and morphology, soil biology, ecology, agrochemistry and agrophysics, as long as they are hypothesis-driven and enhance our mechanistic understanding. Articles including a major molecular or modelling component also fall within the scope of the journal. All contributions appear in the English language, with consistent spelling, using either American or British English.