摘要
本项目基于动力学理论,对机房空调吸排气系统进行动力学模型分析,获取压缩机开机时吸排气管的模态特性;通过CAE方法进行管路优化,分析结果表明优化后的管路系统的固有频率成功的避开了压缩机运行频率48 Hz及电源频率50 Hz或其倍频,通过应变实验进行了验证,优化后的空调管路系统的应变值减小了459.84 MPa,降低了发生共振的风险,避免了管路因共振产生破裂,导致断管的损坏。
Based on the dynamic theory,this project analyzes the dynamic model of the suction and exhaust system of the air conditioning in the machine room,the modal characteristics of the suction and exhaust pipe are obtained when the compressor is started.Then pipeline optimization is obtained by CAE method.The analysis results show that the natural frequency of the optimized pipeline system successfully avoids the compressor operating frequency of 48 Hz and the power frequency of 50 Hz or its doubling.Finally,it is verified by strain experiment.The strain value of the optimized air conditioning pipeline system is reduced by 459.84 MPa,which reduces the risk of resonance and avoids the damage of broken pipe caused by pipeline resonance.
出处
《日用电器》
2021年第10期111-114,共4页
ELECTRICAL APPLIANCES
关键词
空调管路
振动
模态分析
结构优化
air-conditioning pipeline system
vibration
modal analysis
structural optimization
