The evaluation of vibration characteristics and durability of copper forgings for agricultural machinery is a process of evaluating and analyzing its vibration behavior and service life in the working process.
First, the vibration characteristics evaluation includes the following aspects:
- Frequency analysis: Through the use of acceleration sensors and other devices, record and analyze the vibration frequency of copper forgings in the working process to determine its main vibration frequency and harmonic frequency.
- Modal analysis: Through finite element analysis method, the natural frequency and vibration mode of copper forgings are calculated, and the parts that may generate resonance are identified and optimized.
- Vibration response analysis: Under actual working conditions, vibration excitation test is carried out on copper forgings, and its vibration response curve is recorded and analyzed to understand its dynamic behavior under vibration loading.
- Dynamic characteristics analysis: Through the time-frequency analysis of vibration signals, the dynamic characteristics of copper forgings under different working conditions are judged, and the vibration suppression effect and structural dynamic stability are evaluated.
Then, the durability evaluation is mainly for the fatigue life of copper forgings in the long-term working process, mainly including the following aspects:
- Fatigue test: According to relevant standards or actual working conditions, fatigue test is carried out on copper forging, record and analyze its stress-life curve, and determine its fatigue limit and safe life.
- Stress analysis: Through the finite element analysis method, calculate the stress field distribution of copper forgings in the working process, evaluate its stress situation and stress concentration location.
- Cyclic loading analysis: According to the vibration load and stress load under actual working conditions, the cyclic loading analysis of copper forging is carried out to predict its fatigue life and reliability.
- Fatigue damage assessment: Through fatigue life test data and stress analysis results, the fatigue damage of copper forgings in the long-term working process is assessed to predict its life and reliability.
Finally, according to the results of vibration characteristics evaluation and durability evaluation, the design and manufacturing of agricultural copper forgings can be optimized and improved to improve its vibration characteristics and durability, extend its service life, and ensure its safety and reliability in the working process.
