Resonance Analysis and Vibration Reduction Optimization of Agricultural Machinery Frame—Taking Vegetable Precision Seeder as an Example
Abstract
:1. Introduction
2. Materials and Methods
2.1. Structure and Working Principle of the Vegetable Precision Seeder
2.2. Finite Element Modal Analysis of Frame
2.3. Modal Test of Frame
2.4. Excitation Source Analysis
2.5. Optimization and Analysis of Frame
2.6. Field Experiment
3. Results and Discussion
3.1. The Results of Modal Test and Resonance Analysis
3.2. The Results of Frequency Comparison
3.3. Analysis of Vibration Characteristics of Optimized Frame
3.4. The Results of Field Experiment
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Item | Parameter |
---|---|
Mass/kg | 55 |
Row spacing/mm | 160–580 (adjustable) |
Plant spacing/mm | 50–300 (adjustable) |
Seeding depth/mm | 50–150 (adjustable) |
Overall dimensions/mm | 824 × 672 × 1050 |
Working width/mm | 492~912 |
Order | Instrument Name | Parameter | Illustration |
---|---|---|---|
1 | Computer | / | |
2 | INV3018C 8-channel 24-bit high-precision data acquisition instrument | Parallel channel: 8 Maximum sampling frequency:102.4 kHz A/D resolution: 24 bits | |
3 | LC-2D force hammer | Measuring range:0–2 kHz Charge reference sensitivity: 4 pC/N Linearity: < 1% | |
4 | AY100I piezoelectric acceleration sensor | Sensitivity:100 mV/g Maximum frequency: 10,000 Hz Resolution: 0.0002 | |
5 | DASP-10 modal analysis system | / | |
Order | Finite Element Modal Analysis | Modal Test | Error/% | ||
---|---|---|---|---|---|
Calculated Frequency/Hz | Modal Shape | Test Frequency/Hz | Modal Shape | ||
1 | 11.43 | Handrail bracket bending | 11.08 | Consistent | 3.15 |
2 | 17.62 | Handrail bracket bendingBeam bending | 16.97 | Consistent | 3.83 |
3 | 28.25 | Bending of the beam, deformation of the support of the crushing wheel | 29.13 | Consistent | 3.02 |
4 | 42.30 | Torsion of armrest bracket | 42.25 | Consistent | 0.12 |
5 | 62.17 | Bending of the beam and deformation of the support of the crushing wheel | 60.80 | Consistent | 2.25 |
6 | 76.78 | Handrail bracket bent | 77.44 | Consistent | 0.85 |
Peak Point | X Direction | Y Direction | Z Direction | |||
---|---|---|---|---|---|---|
Frequency/Hz | Amplitude/(m/s2) | Frequency/Hz | Amplitude/(m/s2) | Frequency/Hz | Amplitude/(m/s2) | |
A1 | 18.70 | 12.53 | 39.00 | 3.66 | 38.50 | 14.37 |
A2 | 47.60 | 4.68 | 54.82 | 2.74 | 50.00 | 9.00 |
A3 | 22.75 | 4.20 | 22.74 | 1.81 | 45.85 | 8.21 |
A4 | 39.85 | 3.96 | 47.60 | 1.75 | 105.82 | 4.28 |
A5 | 60.00 | 2.83 | 71.25 | 1.60 | 100.50 | 3.06 |
B1 | 31.45 | 3.06 | 135.50 | 2.36 | 37.60 | 3.17 |
B2 | 140.20 | 2.88 | 113.47 | 1.83 | 87.55 | 2.00 |
B3 | 112.72 | 2.60 | 28.40 | 1.79 | 18.26 | 1.97 |
B4 | 75.00 | 2.34 | 138.72 | 1.75 | 25.38 | 1.75 |
B5 | 119.73 | 2.17 | 88.49 | 1.55 | 94.50 | 0.83 |
Before Optimization | After Optimization | ||||||
---|---|---|---|---|---|---|---|
Qualified Index/% | Multiples Index/% | Miss Index/% | Coefficient of Variation/% | Qualified Index/% | Multiples Index/% | Miss Index/% | Coefficient of Variation/% |
82.07 | 7.83 | 10.1 | 23.55 | 88.63 | 6.25 | 5.12 | 15.71 |
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Wang, J.; Xu, C.; Xu, Y.; Wang, J.; Zhou, W.; Wang, Q.; Tang, H. Resonance Analysis and Vibration Reduction Optimization of Agricultural Machinery Frame—Taking Vegetable Precision Seeder as an Example. Processes 2021, 9, 1979. https://doi.org/10.3390/pr9111979
Wang J, Xu C, Xu Y, Wang J, Zhou W, Wang Q, Tang H. Resonance Analysis and Vibration Reduction Optimization of Agricultural Machinery Frame—Taking Vegetable Precision Seeder as an Example. Processes. 2021; 9(11):1979. https://doi.org/10.3390/pr9111979
Chicago/Turabian StyleWang, Jinwu, Changsu Xu, Yanan Xu, Jinfeng Wang, Wenqi Zhou, Qi Wang, and Han Tang. 2021. "Resonance Analysis and Vibration Reduction Optimization of Agricultural Machinery Frame—Taking Vegetable Precision Seeder as an Example" Processes 9, no. 11: 1979. https://doi.org/10.3390/pr9111979