Jerk and loss minimization in electric elevator systems

A review on the employment of the hydraulic cylinder for lifting purposes

“…MATLAB Simulink was devoted to building a full design of the cylinder's dynamic model Derlukiewicz and Przybyłek [33] Selected a jib profile and defined a stable operation area via FEM strength analysis hua and jun [34] Studied with ANSYS the supporting stability of a 3-stage hydraulic cylinder Xuewen et al [40] Presented a 360-type double-telescopic prop finite element strength analysis Patil et al [47] Designed and analyzed a telescopic hydraulic cylinder with ANSYS at a stroke of 980 mm and a max. lifting capacity of 7000 kg and Mute et al [49] Used ANSYS to analyze the plate, the cylinder, the wheel, and the tank of the hydraulic telescopic jack system Uzny and Kutrowski [50] Simulated a telescopic hydraulic jack with ANSYS to solve the stability boundary issue of a telescopic hydraulic cylinder under a universal load with a force [1] Depended on the speed feedback control scheme to achieve real-time cabin speed correction Results show that the improved scheme has a better dynamic response Çağrı et al [2] Designed optimal model for a linear multi-car elevator system Safety procedure and set up the required circumstances to operate properly Knezevic et al [3] Vector controlled technique for induction motor Indirectly manage the jerk since modern drives can regulate speed Shreelakshmi and Agarwal [5] Attempted to smooth elevator speed and assure Comfort by using a pre-defined non-instant jerk pattern.…”