With the rapid development of aviation technology, the performance of aero-engine continues to increase in China. However, Chinese Aero-engine lubricating oil real-time measurement technology is not mature, active airplane almost have no Aero-engine lubricating oil real-time measurement system, It requires further in-depth study.By research on Aero-engine lubricating oil measurement technology. First, it outlined the method and principles of measurement, and based on UG Open the analysis of Aero-engine lubricating oil system was developed. Through which an analysis of the model of Aero-engine lubricating oil, the spatial databases about sensor depth of immersion oil, aircraft attitude and fuel volume were built.,which can provide the data for the subsequent lubricating real-time oil measuring analysis .

The Apparatus for measuring road roughness based on inertia benchmark are usually used with method of “calculation amendment”. The exquisite vibration of sprung mass and double integration of acceleration can bring error to measuring result. The amelioration was took to this kind of device by adding a mass block called measuring benchmark. Vibration characteristic was analyzed through vibration equation. To reduce the error, the perfect combination of system parameters was found to minish the amplitude of measuring benchmark. The analysis indicated that when selecting appropriate system parameters the dimensionless amplitude can be tend to “1”.

The modal analysis of machine tool bed was done by means of finite element method. Find out its characteristics of vibration modal. Then structure improvements on arrangement of tool bed reinforcing plates were done. After the structure improvements the natural frequencies of the tool bed were improved.