【摘要】 高压环境模拟系统作为深海设备结构强度与密封性能检测系统,其受到90MPa的交变载荷作用,破坏形式为疲劳破坏。本文首先利用ANSYS Workbench软件对压力筒进行了静力学分析,分析了压力筒在载荷作用下的危险区域。通过理论计算与ANSYS workbench模拟结果的比较,验证了模拟结果的准确性。运用名义预应力寿命法对筒体的疲劳寿命进行了理论计算,证明了ANSYS Workbench在疲劳分析中的可行性。筒体在90 MPa不同压力下循环次数的模拟,对压力筒在工作过程中的保养和维护具有一定的借鉴意义。更多还原

【Abstract】 High pressure environment simulation system is used to test the structure strength and sealing performance of deep-sea equipment,which is subjected to the alternating load of 0~90 MPa,and the failure mode is fatigue failure.In the first,the article use the method of static analysis to study the pressure tube,and find the dangerous area of the pressure tube under the load.Prove the accuracy of the simulation results by the comparison between theoretical calculation and workbench ANSYS simulation results.The article use the method of nominal prestress to calculated the fatigue life,and prove the feasibility of ANSYS workbench in fatigue analysis.The simulation of the cycle times under different pressures of 0~90 MPa has a certain reference value for the maintenance and maintenance of the pressure tube in the work process.更多还原