论文部分内容阅读
从结构振动和结构噪声的角度来看,压缩机的环状管是电冰箱中最重要的部件。压缩机内部机体产生的振动能量通过环状管传到壳体和外界,因此压缩机环状管的设计非常重要。但是,由于环状管几何形状的复杂性和运动的非线性,分析和设计环状管十分困难,往往不得不用统计法和试验法进行系统设计。对于类似环状管这样的复杂系统,响应面法(RSM)是常用的建模技术。用有限元模型和简单的试验模型代替环状管的实际模型作为环状管优化的起点。建立RS模型以后,用sensitivity-based优化法进行优化。采用动态最小二乘法(MLSM)减少逼近误差。
From the structural vibration and structural noise point of view, the compressor ring tube is the most important part of the refrigerator. The vibration energy generated by the internal body of the compressor is transmitted to the shell and the outside through the ring-shaped pipe. Therefore, the design of the ring-shaped pipe of the compressor is very important. However, due to the complexity of ring-shaped tubes and the non-linearity of motion, it is very difficult to analyze and design ring-shaped tubes. Therefore, it is often necessary to design the system with statistical methods and experimental methods. Response surface methodology (RSM) is a commonly used modeling technique for complex systems like ring-shaped tubes. The finite element model and the simple experimental model are used to replace the actual model of the ring tube as the starting point for the ring tube optimization. After establishing the RS model, we optimize it with sensitivity-based optimization. Using dynamic least squares (MLSM) to reduce the approximation error.