Authors

Abstract

Addressing the issue of high tillage resistance associated with soil compaction and subsoiling operations, a ultrasonic vibration-assisted gas-liquid two-phase jet subsoiler was designed and developed by integrating gas-liquid two-phase jet technology with ultrasonic vibration excitation technology. The performance of this subsoiler was evaluated through experiments. The results demonstrated that, compared with traditional mechanical subsoiling, the combined application of ultrasonic vibration and gas-liquid two-phase jet subsoiling reduced tillage resistance by 17.5%, increased soil disturbance area by 7563.3 mm², and induced a maximum change in soil porosity of 0.115 mm at a depth of 30 cm and width of 30 cm. Comprehensive analysis confirmed that the combination of ultrasonic vibration and gas-liquid two-phase jet subsoiling significantly reduces tillage resistance and enhances subsoiling effectiveness.

Abstract in Chinese

针对土壤压实和深松作业耕作阻力大的问题，利用气液两相射流技术与超声波激振技术，设计并搭建了超声波激振气液两相射流深松机。通过试验验证超声波激振气液两相射流深松性能。结果表明，超声波激振与气液两相射流组合深松较传统机械深松耕作阻力降低17.5%，土壤扰动面积增大7563.3 mm2，在深度30 cm，宽度30 cm位置，土壤孔隙度变化最大为0.115 mm。综合分析得出超声波激振与气液两相射流组合深松显著降低耕作阻力并提升深松效果。