CAJ | 학술논문

用等效刚度和阻尼系数对某汽轮机迷宫汽封蒸汽对转子的流体力进行描述，归纳汽轮机转子各位置处汽封等效刚度与阻尼系数的变化规律，进而分析参数变化对机组稳定性的影响，为机组的安全稳定运行提供技术支持。分析表明：汽轮机转子不同位置处的汽封等效刚度与阻尼系数存在一定的变化规律，单纯更改汽封间隙不是提高机组转子稳定性的有效办法。
용등효강도화조니계수대모기륜궤미궁기봉증기대전자적류체력진행묘술，귀납기륜궤전자각위치처기봉등효강도여조니계수적변화규률，진이분석삼수변화대궤조은정성적영향，위궤조적안전은정운행제공기술지지。분석표명：기륜궤전자불동위치처적기봉등효강도여조니계수존재일정적변화규률，단순경개기봉간극불시제고궤조전자은정성적유효판법。
Use the equivalent stiffness and damping coefficient to describe the turbine steam force between the rotor and labyrinth seal,summarize the law of the stiffness and damping coefficient at the different position of rotor ’ s steam seal. Then the stability effects of the parameter variation are analyzed ,and provide technical support for safe and stable operation of the unit.It is found that the stiffness and damping coefficient variation has a law at the different position of rotor ’s steam seal,and change the steam seal ’ s clearance is not a valid method to improve the stability of the rotor .