The static and dynamic stiffness analysis and optimization of copper forgings for agricultural machinery is to improve the stiffness level of copper forgings for agricultural machinery and enhance its deformation resistance and bearing capacity. The steps and methods of static and dynamic stiffness analysis and optimization of agricultural copper forgings are introduced below.
- Static stiffness analysis and optimization
Static stiffness refers to the deformation of copper forgings of agricultural machinery under the action of stable external forces. Static stiffness analysis mainly includes the following steps:
(1) Material selection: Select copper alloy materials with high strength and hardness to improve the stiffness of copper forgings.
(2) Structural design: According to the working conditions and stress conditions of agricultural machinery, the structure of copper forgings is reasonably designed, and appropriate reinforcement bars, ribs or transverse connectors are added to improve the stiffness.
(3) Finite element analysis: The finite element analysis method is used to establish the model and set the boundary conditions of copper forgings, calculate the deformation after loading, and obtain the static stiffness.
(4) Process adjustment: Through heat treatment, cooling and other process adjustment measures to improve the stiffness and performance of copper forgings.
- Dynamic stiffness analysis and optimization
Dynamic stiffness refers to the deformation and vibration of copper forgings in the process of movement. Dynamic stiffness analysis mainly includes the following steps:
(1) Testing and analysis of dynamic characteristics: Through experiments and tests, the vibration characteristics and frequency response data of agricultural copper forgings in the process of movement are obtained and their dynamic characteristics are analyzed.
(2) Structural optimization: According to the analysis results of dynamic characteristics, the structure of copper forgings of agricultural machinery is optimized and adjusted to inhibit or eliminate unstable vibration frequency and improve dynamic stiffness.
(3) Vibration reduction measures: increase the vibration reduction material, shock absorber or vibration isolation support in the appropriate position to reduce the vibration amplitude and frequency of agricultural copper forgings and improve the dynamic stiffness.
- Optimization methods and techniques
The optimization of static and dynamic stiffness can adopt many methods and techniques, such as finite element analysis, modal analysis, signal processing, etc.
(1) Finite element analysis: By establishing an accurate finite element model, the force analysis and deformation prediction of copper forgings of agricultural machinery can be carried out quickly to evaluate the stiffness of different design schemes and select the best scheme.
(2) Modal analysis: Through modal analysis of agricultural machinery copper forgings, its natural frequency and vibration modes are obtained, which provides reference for vibration reduction design.
(3) Signal processing: Through the acquisition and processing of the vibration signal of agricultural copper forgings, its spectrum characteristics and vibration modes can be obtained, so as to guide the optimal design.
In summary, static and dynamic stiffness analysis and optimization of agricultural copper forgings is an important means to improve the stiffness level of agricultural copper forgings. Optimization in the aspects of material selection, structural design, process adjustment and vibration reduction measures can enhance the deformation resistance and bearing capacity of agricultural copper forgings, and improve their service life and working stability.
