CAJ | 학술논문

　　在 HJDS-Ⅱ型动力模拟试验机上对某型号航空炭刹车副进行连续低速刹车试验，研究摩擦因数与连续刹车次数和刹车副体容温度三者之间的关系，并对摩擦性能进行分析。结果表明：在连续低速刹车条件下，炭刹车副的体容温度随刹车次数增加而缓慢均匀升高。根据航空 C/C 复合材料摩擦因数随体容温度的变化规律，可将摩擦过程分为4个区域：环境温度摩擦区(温度低于80℃，摩擦因数稳定并小于0.15)、突变摩擦区(温度为80~120℃，摩擦因数突增到0.3)、水解吸的粉尘摩擦区(温度为120~650℃，摩擦因数达到低温峰值0.33后小幅回落，然后缓慢上升)和氧解吸的粉尘摩擦区(温度高于650℃，摩擦因数超过低温峰值)。过多地使用连续低速刹车易导致炭刹车副温度过高和轮胎拖胎，严重威胁飞机安全。
　　재 HJDS-Ⅱ형동력모의시험궤상대모형호항공탄찰차부진행련속저속찰차시험，연구마찰인수여련속찰차차수화찰차부체용온도삼자지간적관계，병대마찰성능진행분석。결과표명：재련속저속찰차조건하，탄찰차부적체용온도수찰차차수증가이완만균균승고。근거항공 C/C 복합재료마찰인수수체용온도적변화규률，가장마찰과정분위4개구역：배경온도마찰구(온도저우80℃，마찰인수은정병소우0.15)、돌변마찰구(온도위80~120℃，마찰인수돌증도0.3)、수해흡적분진마찰구(온도위120~650℃，마찰인수체도저온봉치0.33후소폭회락，연후완만상승)화양해흡적분진마찰구(온도고우650℃，마찰인수초과저온봉치)。과다지사용련속저속찰차역도치탄찰차부온도과고화륜태타태，엄중위협비궤안전。
Aircraft carbon brake was tested under the condition of continuously low-speed braking on HJDS-ⅡInertia test bench, the relationship between friction coefficient and continuous braking numbers and body temperature of C/C composites was studied, and its friction behavior was also analyzed. The results show that the body temperature of carbon brake rises slowly and evenly with the increase of braking numbers, the friction process can be divided into four regions relative to body temperature according to the variation of its friction coefficient. Those are the ambient temperature friction zone (whose temperature is lower than 80 ℃, friction factor is stable and less than 0.15); the mutation friction zone (temperature is located between 80?120 ℃, The friction factor increases suddenly from 0.15 to 0.3); the dust friction zone of water desorption (temperature is located between 120?650 ℃, the friction coefficient reaches low temperature peak of 0.33 at first, then declines slightly and rises slowly again); and the dust friction zone of oxygen desorption (temperature is higher than 650 ℃, friction coefficient exceeds the low temperature peak). Overfull continuously low-speed braking easily leads to braking discs’ body temperature being too high and tire being dragged, which will be serious threat to the safety of airplane.