How to calculate the digging force of a small excavator?

[BONOVO]

- Digging force tests are usually conducted at a dedicated engineering machinery test site. A small excavator is fixed on a test platform that can withstand the digging force and measure its size. A force sensor is placed at the tip of the bucket tooth and connected to the data acquisition system.
- Operate the excavator to perform standard digging actions, such as inserting the bucket into simulated soil or other media at a certain speed and angle, and the data acquisition system will record the digging force value measured by the force sensor. This method can more realistically reflect the digging force of the excavator under actual digging conditions.

- Estimation through operation data:
- Digging force can also be estimated through data collected during actual operation. For example, strain gauges are installed on the working device of the excavator (such as the dipper arm, bucket, etc.), and the strain gauges can measure the strain of the working device during the digging process.
- Based on the relationship between strain and force (through material mechanics formulas and experimental calibration), the digging force can be inferred. At the same time, combined with the working parameters recorded by the excavator's control system (such as flow and pressure changes in the hydraulic system, etc.), the calculation results of the digging force are further corrected. The advantage of this method is that digging force data can be obtained in an actual working environment, but it requires complex sensor installation and data processing.

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