Topology optimization technology is an advanced design method that seeks the optimal distribution form of materials within a given design space based on specific constraints and optimization goals. It is of great significance for designing Sensor Structural Parts with high natural frequencies.
First, clarify the optimization goals and constraints. The goal is to maximize the natural frequency of Sensor Structural Parts, because high natural frequency can avoid external excitation frequencies when working, reduce resonance risks, and improve stability and measurement accuracy. Constraints include volume restrictions of structural parts, material mechanical properties requirements, and installation and functional spaces that must be met. For example, it is stipulated that the total volume of structural parts cannot exceed a certain value, and at the same time, parameters such as the allowable stress and elastic modulus of the material must be within a specific range to ensure that the structure will not fail during normal operation.
Secondly, establish a finite element model. Import the initial design geometry of the Sensor Structural Parts into the finite element analysis software, discretize it, and divide it into many tiny units. Accurately set material properties, such as density, Poisson's ratio, elastic modulus, etc. These properties will directly affect the subsequent optimization calculation results. At the same time, define boundary conditions to simulate the installation method and stress state of structural parts in actual work, such as fixing certain parts or applying specific loads.
Then, perform topology optimization calculations. Based on the set optimization goals, constraints and finite element models, the software uses mathematical algorithms to iteratively optimize the material distribution of structural parts. In this process, the material areas that contribute less to the improvement of the natural frequency will be gradually removed, while the material distribution of key parts will be strengthened. For example, materials are added to some parts that are prone to vibration deformation, while materials are reduced in areas that have little effect on the overall stiffness and natural frequency, so that the mass distribution of structural parts is more reasonable, thereby increasing the natural frequency.
Finally, post-process and verify the optimization results. Extract the structural shape after topology optimization, reconstruct the solid model using computer-aided design (CAD) software, and perform finite element analysis again to verify the optimization effect. Check whether the optimized structural parts meet the design requirements, such as whether the natural frequency reaches the expected target and whether the structural strength is sufficient. If there are deficiencies, adjust the optimization parameters or constraints, and re-optimize the calculation until a satisfactory high natural frequency Sensor Structural Parts design solution is obtained. Through topology optimization technology, sensor structural parts with better performance can be efficiently designed while meeting various design requirements.
