船舶密封舱内声固耦合及多环境变量对生理功能的影响

Studying the mechanism that the cylinder airtight cabin suffered the inner and the exterior encourages produces the acoustic-solid coupling, testing the acoustics character and the vibrate character of the submarine motive cabin, engine .and thin wall, and researching the method how to identify the sound source, identify the vibration mode and control the noise and chatter to engine and its parts, we established the acoustic-solid coupling model of the cylinder airtight cabin, calculated and verified the accuracy of the model through the emulation experiment. .We developed the multi-environment-variable airtight cabin and the system of computer survey and control which serves the physiologic experiment of small animal. Airtight cabin and the system of survey and control had characters of mobility and the multi-environment-variable combinative regulation. We studied the effect of the congenerous exposure of two parameters among several environment parameters such as pressure, temperature, humidity, oxygen density, vibration, noise etc. on the physiological indexes of Cavy and Rat-temperature,blood pressure,electrocardiogram, brain-stem auditory evoked potential, Hippocampus immunohistochemistry, cortex- hormone etc. The outcome confirmed that: the congenerous exposures of several environment parameters have severe effects on the physiological indexes of animal..

用声学有限元法和流固耦合理论，建立描述和诊断船舶密封舱内的声振理论方法，寻求有效控制措施，为船舶密封舱的动态择优声学设计提供理论基础。研制可调节的圆柱型环境模拟密封舱，排除外界声干扰，研究多环境变量对动物生理功能的影响，找出规律性及可能对人体生理产生损害的临界范围，并进一步探索多环境变量对生理功能影响的累加和抵消效应。.