Static and dynamic stiffness analysis and optimization of agricultural machinery aluminum forgings is to ensure that agricultural machinery has sufficient stiffness to cope with external loads and vibrations during the working process. Static stiffness analysis mainly considers the deformation and stress distribution of agricultural machinery aluminum forgings under static load, while dynamic stiffness analysis focuses on its resonance frequency and modal characteristics under dynamic load.
Static stiffness analysis of agricultural machinery aluminum forgings:
- Experimental determination of mechanical properties of materials: Through experimental means to determine the elastic modulus, yield strength and other material mechanical property parameters of aluminum forgings.
- Stiffness calculation method: According to the geometric shape and boundary conditions of agricultural machinery aluminum forgings, numerical simulation methods such as finite element analysis are used to calculate the stiffness of the structure, including the global stiffness and local stiffness.
- Stiffness optimization strategy: According to the static stiffness analysis results, corresponding optimization strategies are proposed for the insufficient or excessive stiffness of agricultural machinery aluminum forgings, such as increasing material thickness, changing geometric shape, strengthening support structure, etc.
Dynamic stiffness analysis of agricultural machinery aluminum forgings:
- Establishment of dynamic model: Establish a dynamic model of agricultural machinery aluminum forgings, including consideration of mass, stiffness, damping and other factors.
- Modal analysis method: finite element analysis and other methods are used to calculate the natural frequency and modal morphology of agricultural machinery aluminum forgings to understand the vibration characteristics of the structure.
- Stiffness recognition technology: Through the measured or calculated modal parameters, combined with the recognition algorithm, the dynamic stiffness parameters of agricultural machinery aluminum forgings are deduced for further analysis and optimization.
Optimal design strategy of aluminum forgings for agricultural machinery:
- Material selection and process optimization: Select the appropriate aluminum alloy material and optimize the forging process to improve material performance and manufacturing quality.
- Structural topology optimization: Through topology optimization method, the shape and layout of agricultural machinery aluminum forgings are optimized to increase stiffness and reduce weight.
- Parameter optimization method: Use parametric modeling and optimization algorithm to optimize key parameters, such as geometric size, section shape, bolt preload, etc., to improve stiffness and durability.
In summary, static and dynamic stiffness analysis and optimization of agricultural machinery aluminum forgings can ensure that they have sufficient stiffness and vibration characteristics in the working process to improve the reliability and durability of agricultural machinery. In practical application, it is necessary to comprehensively consider the factors such as material, structure and process, and combine numerical simulation with actual measurement to achieve the best analysis and optimization effect.
