机电设备
機電設備
궤전설비
Mechanical and Electrical Equipment
2015年
5期
6-9
,共4页
主减速齿轮装置%回汽制动工况%轮齿应力%建模仿真
主減速齒輪裝置%迴汽製動工況%輪齒應力%建模倣真
주감속치륜장치%회기제동공황%륜치응력%건모방진
main reduction gear%back-steam braking condition%tooth stress%modeling and simulation
针对蒸汽动力船舶回汽制动工况下主减速齿轮装置运行可靠性问题，通过回汽制动过程主减速齿轮装置运行状态的分析，建立回汽制动工况下主减速齿轮装置轮齿应力模型，并基于Matlab-Simulink环境，建立主减速齿轮装置的轮齿齿根弯曲应力及齿面挤压应力的仿真模型。仿真结果表明，回汽制动工况下，高压侧齿轮不会出现可靠性问题，而低压齿轮轮齿的弯曲及挤压应力可能超出最大许用值，可能导致齿轮装置的损伤，影响船舶的安全运行，因此需对倒车汽轮机回汽时机进行限制。
針對蒸汽動力船舶迴汽製動工況下主減速齒輪裝置運行可靠性問題，通過迴汽製動過程主減速齒輪裝置運行狀態的分析，建立迴汽製動工況下主減速齒輪裝置輪齒應力模型，併基于Matlab-Simulink環境，建立主減速齒輪裝置的輪齒齒根彎麯應力及齒麵擠壓應力的倣真模型。倣真結果錶明，迴汽製動工況下，高壓側齒輪不會齣現可靠性問題，而低壓齒輪輪齒的彎麯及擠壓應力可能超齣最大許用值，可能導緻齒輪裝置的損傷，影響船舶的安全運行，因此需對倒車汽輪機迴汽時機進行限製。
침대증기동력선박회기제동공황하주감속치륜장치운행가고성문제，통과회기제동과정주감속치륜장치운행상태적분석，건립회기제동공황하주감속치륜장치륜치응력모형，병기우Matlab-Simulink배경，건립주감속치륜장치적륜치치근만곡응력급치면제압응력적방진모형。방진결과표명，회기제동공황하，고압측치륜불회출현가고성문제，이저압치륜륜치적만곡급제압응력가능초출최대허용치，가능도치치륜장치적손상，영향선박적안전운행，인차수대도차기륜궤회기시궤진행한제。
For the defect of operational reliability safety in the back-steam braking condition in traditional braking method of steam-powered ships, operating state of the main reduction gear in the back-steam braking condition is analyzed, and tooth stress models of main reduction gears are created. Mathematical models of bending stress and contact stress are created based on the Matlab-Simulink. It is indicated in the simulation results that high pressure gears works normally, while bending stress and contact stress of the low pressure gears may exceed the maximum allowable value. So low pressure gears may damage and affect the operation safety of the ships. Therefore, back-steam opportunity of astern turbines should be restricted.
