Modal vibration response of rice combine harvester frame under multi-source excitation

Chen, Shuren; Zhou, Yuepeng; Tang, Zhong; Lu, Shaowei

doi:10.1016/j.biosystemseng.2020.04.002

Cited by 44 publications

(27 citation statements)

References 27 publications

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“…The authors of study [11] developed a dynamic model of the combine-harvester's frame as a solid body with 7 degrees of freedom. Comparing the independent modal frequency of the frame chassis and threshing with the frequency of the combine-harvester's frame, it was proved that the constant modal frequency of the loaded combine-harvester is directly related to the independent modal frequency of the chassis frame and threshing.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Development of operational requirements for self-propelled combine-harvesters with the capabilities of mobile energy devices

Sheichenko¹,

Kuzmych²,

Niedoviesov³

et al. 2020

EEJET

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This paper reports a study into the possibility of using the chassis of combine-harvesters as a mobile energy device. The operational requirements for mobile energy technological devices for general purposes have been developed. The traction-coupling characteristics of the combine-harvester with an adapter that increases traction force have been investigated. The theoretical dependences have been derived of the motion speed, the power on a hook, the specific fuel consumption, as well as a factor of loading the wheels of the driven axle, on the traction force on the hook of an energy-technological device. It is noted that the use of the controlled axle with drive wheels reduces the slippage of the engines of the energy technological device. At the engine slippage level of up to 16 % an energy device, equipped with a driven axle with drive wheels, generates a traction force on the hook of up to 40 kN. Under the conditions of driving the axle by the hydraulic transmission mainline, the motion speed of an energy device decreases by 17.9 %, 28.5 %, 35.9 %, and 49.0 %, respectively, on gears I, II, III, and IV of the drive axle gearbox. The power on the energy device's hook is increased due to the corresponding increase in traction effort: on gear III, at a traction effort within 35-40 kN, the capacity on the hook is 68-75 kW. Under these conditions, the specific fuel consumption is 430-460 g/kWh at the device's motion speed within 1.9-1.95 m/s. The limits for changing the load factor on the wheels of the driven axle (not less than 0.2) have been determined, at which the requirements for control over an energy device are met. The specific fuel consumption (540-580 g/kWh) by a combine-harvester with a throughput capacity of 9-11 kg/s has been established, when using it as an energy technological device for general purposes at a motion speed of 1.7-2.1 m/s and a traction effort on the hook of 24-33 kN

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Analyzing dependences (10), (11), we note that the use of the reversible movement of the combine-harvester with an adapter would ensure the redistribution of the normal dynamic reactions, making it possible to additionally load the drive wheels and increase its traction and coupling properties.…”

Section: Studying the Traction And Coupling Indicators Of A Combinmentioning

confidence: 99%

Development of operational requirements for self-propelled combine-harvesters with the capabilities of mobile energy devices

Sheichenko¹,

Kuzmych²,

Niedoviesov³

et al. 2020

EEJET

View full text Add to dashboard Cite

show abstract

“…With the development of computer technology, the modal parameters of each working part can be effectively solved with the help of multi-software synergistic simulation interface technology. Tang et al [6] analyzed the first sixth-order natural frequencies and modal shapes of the combined harvester racks using ANSYS, which provided a basis for reducing the vibration of the racks under multi-source excitation.…”

Section: Introductionmentioning

confidence: 99%

Vibration Analysis and Parameter Optimization of the Longitudinal Axial Flow Threshing Cylinder

Wang

et al. 2021

Symmetry

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The longitudinal axial flow threshing cylinder of the full feeding rice combine harvester is widely used in China and works with violent vibration. To explore the source of the excitation affecting the vibration and to reduce the vibration, a finite element modal analysis and multipoint input and multipoint output (MIMO) modal test were performed to solve the natural vibration characteristics. By analyzing the excitation frequency, we concluded that the main reason for the resonance was the coupling between the rotation frequency of the threshing cylinder and the first natural frequency. To avoid the influence of resonance and realize a lightweight design, we proposed a combination of size optimization and topology optimization. The second rotation orthogonal combination test was designed to analyze the first natural frequency, maximum stress, and maximum deformation of the threshing cylinder, and the threshing cylinder was reconstructed as a central symmetrical structure to balance the rotational inertia force. The field experiment results showed that the amplitudes of the optimized threshing cylinder were significantly lower than those of the original threshing cylinder. This study provides ideas for solving the vibration characteristics of rotating parts and provides an important reference for the design of vibration reduction and weight reduction of key parts in the field of agricultural machinery.

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“…Taking the excitation motor installed on the base panel as the excitation source, the vibration source and the base panel were connected at multiple points through a force sensor, and the vibration response under multipoint excitation was simulated and experimentally studied. Chen et al took the rice combine harvester as the research object [27]. Based on the multisource excitation of the combine harvester, the chassis rack and the thresher were assembled into a complete combine harvesting rack.…”

Section: Introductionmentioning

confidence: 99%

Vibration Response of Combine Harvester Chassis Undergoing Multisource Excitation Force Distribution

Tang

Ren

et al. 2021

Mathematical Problems in Engineering

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When a combine harvester is harvesting in field under complicated conditions, vibration characteristics of the chassis frame under the excitation of multiple sources are complex and changeable. In order to analyze the vibration characteristics of the chassis frame of the combine harvester under complex working conditions and multisource excitation, this paper carried out three-dimensional modeling and static calculation of the chassis frame of the combine harvester. On this basis, the experimental modal analysis was carried out on the designed chassis frame, and finally, the vibration response under multiple excitations and complex working conditions was tested and analyzed in the field. Results showed that when the combine harvester was fully loaded, the maximum bending moment was at the load-bearing beam under the grain box. The maximum bending moment was 2298.08 N/m, and it was located at the cross section of the left end of the bearing beam at 1.61 m. When the components of the whole machine were working, the vibration of the chassis frame at the rear right was the most intense. The horizontal vibration of the threshing drum, the reciprocating motion generated by the vibrating screen, and the vertical vibration generated by the engine were the main vibration sources of the combine harvester in the three directions of X, Y, and Z. With the i\ncrease of engine speed, the excitation capacity of each working component connected to the engine on the whole machine increased. The results of this paper provide experimental basis for the research on the vibration characteristics of the chassis frame of the rice combine harvester under multisource excitation and also provide a reference for the further improvement of the chassis frame of the combine harvester.

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Modal vibration response of rice combine harvester frame under multi-source excitation

Cited by 44 publications

References 27 publications

Development of operational requirements for self-propelled combine-harvesters with the capabilities of mobile energy devices

Development of operational requirements for self-propelled combine-harvesters with the capabilities of mobile energy devices

Vibration Analysis and Parameter Optimization of the Longitudinal Axial Flow Threshing Cylinder

Vibration Response of Combine Harvester Chassis Undergoing Multisource Excitation Force Distribution

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