CAJ | 학술논문

　　造纸工业中采用正弦气浮干燥器对纸幅进行非接触传输并干燥时，轴向运动纸幅的横向变形与干燥器气垫区域的气体压力是相耦合的。为获得平衡状态下的纸幅变形和气垫区压力分布这两项重要的工艺参数，需要将纸幅和气垫作为一个相互耦合的系统来研究。考虑一维模型，将纸幅近似为恒张力作用下的轴向运动Euler-Bernoulli梁，并设气垫区域的气体压力满足不可压缩非定常流动的连续性方程和N-S方程，建立了纸幅和气垫的控制方程及耦合条件。采用有限差分法和Newton-Raphson法对气垫区的平衡压力和纸幅变形进行数值求解。最后，对纸幅传输速度，纸幅牵引张力等运行参数对所述系统平衡态的影响进行了讨论。
　　조지공업중채용정현기부간조기대지폭진행비접촉전수병간조시，축향운동지폭적횡향변형여간조기기점구역적기체압력시상우합적。위획득평형상태하적지폭변형화기점구압력분포저량항중요적공예삼수，수요장지폭화기점작위일개상호우합적계통래연구。고필일유모형，장지폭근사위항장력작용하적축향운동Euler-Bernoulli량，병설기점구역적기체압력만족불가압축비정상류동적련속성방정화N-S방정，건립료지폭화기점적공제방정급우합조건。채용유한차분법화Newton-Raphson법대기점구적평형압력화지폭변형진행수치구해。최후，대지폭전수속도，지폭견인장력등운행삼수대소술계통평형태적영향진행료토론。
The sine curve gas floating dryer is widely applied to transport and dry the paper without contact in paper industry. To the extent that transverse deformation of axial moving paper couples with the air pressure in air cushion area.In order to ob-tain these two important process parameters in equilibrium state, it is necessary to regard the paper and air cushion as a cou-pling system.In the one-dimensional model considered here, the paper is approximated as an axially moving Euler-Bernoulli beam under tension, and the air pressure in the bearing region satisfies continuity equation and N-S equation for unsteady in-compressible flow, the governing equations and coupling condition for the paper and the air cushion are established.The equi-librium pressure in air cushion area and the paper deformation are determined through finite difference method and Newton-Raphson method.Finally, the dependence of the system′s equilibrium state on the transport speed and traction tension is dis-cussed.