In the field of mechanical design, CAE software is mainly used for strength and stiffness analysis to ensure that products do not undergo damage or deformation, etc., under working conditions
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Used to solve the displacement and stress of structures under static loads. Static analysis includes linear and nonlinear analysis. Nonlinear analysis involves plasticity, stress stiffening, large deformation, large strain, hyperelasticity, contact surfaces, and creep.
It is a technique used to determine the dynamic characteristics of structures or components when inertia (mass effect) and damping play important roles. Used to solve the impact of time-varying loads on structures or components.
Used to analyze the response of a structure under a given static load. In general, the focus is often on parameters such as displacement, constraint reaction, stress, and strain of the structure. For machinery, static analysis usually includes strength analysis, stiffness analysis, and stability analysis, among which strength analysis and stiffness analysis are the most important.
1. Modal analysis: Analyzing the natural frequencies and modes of vibration of a structure
2. Harmonic response analysis: analysis of the response of a structure under a sinusoidal load over time
3. Spectral analysis: response analysis of structures under the action of impact response spectra
4. PSD analysis: response of structures under random vibration loads
5. Transient Dynamics Analysis: Response under Any Dynamic Load
6. Fracture analysis
Mechanical components, such as shafts, gears, bearings, blades, springs, etc., experience periodic changes in stress at various points over time during operation. This cyclic stress is called alternating stress (also known as cyclic stress). Under the action of alternating stress, although the stress borne by the part is lower than the yield point of the material, the phenomenon of cracking or sudden complete fracture after a long period of work is called metal fatigue.
Through CFD numerical simulation, we can obtain the distribution of basic physical quantities (such as velocity, pressure, temperature, concentration, etc.) at various positions in the flow field of extremely complex problems, as well as the changes of these physical quantities over time, to determine the vortex distribution characteristics, cavitation characteristics, and flow separation zone. Other related physical stars can also be calculated based on this, such as the torque, hydraulic losses, and efficiency of rotating fluid machinery.
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