沿海“三高”环境对直升机的不利影响及其预防措施

A Preliminary Discussion on the Detrimental Effects of“Three Highs”Coastal Environment on Helicopters and Suggestions for Countermeasures

亚热带气候的沿海地区,年降雨量多在1200 mm以上,夏季温度较高,湿度大,空气中含盐量高。机载设备在使用中发生的故障有51%是由环境因素引起的,其中又以高温、高湿和高盐雾引起的故障为最多。因此,机务人员需要深入认识环境因素对直升机的不利影响,掌握不同环境下的故障规律及维护特点,采取切实可行的预防措施,使其经常保持完好状态,确保任务的安全顺利遂行。文章论述沿海“三高”环境对直升机的不利影响,提出相应措施,以提升直升机的完好率。

The coastal region,characterized by a subtropical climate,experiences annual rainfall exceeding 1200 millimeters,with high temperatures,humidity,and salt content in the air during the summer months.According to relevant records,51%of the failures in airborne equipment during operation are caused by environmental factors,with failures induced by high temperatures,humidity,and salt fog being the most prevalent.Therefore,it is imperative for maintenance personnel to thoroughly understand the detrimental effects of environmental factors on helicopters,grasp the failure patterns and maintenance characteristics under different environmental conditions,and implement practical preventive measures to maintain the equipment in optimal condition,thereby ensuring the safe and smooth execution of missions.This paper focused on the adverse impacts of“high temperature,high humidity,and high salt fog”environments on helicopters,and proposed corresponding measures to enhance the operational readiness of helicopters.