دانلود مقاله ISI انگلیسی شماره 57509
عنوان فارسی مقاله

ویژگی های قدرت ترانسفورماتور هیدرولیک متغیر

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
57509 2015 18 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Power characteristics of a variable hydraulic transformer
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Chinese Journal of Aeronautics, Volume 28, Issue 3, June 2015, Pages 914–931

کلمات کلیدی
هواپیما؛ بهره وری؛ ذخیره انرژی؛ ترانسفورماتور هیدرولیک؛ قدرت؛ تپش؛ بهره برداری پایدار
پیش نمایش مقاله
پیش نمایش مقاله ویژگی های قدرت ترانسفورماتور هیدرولیک متغیر

چکیده انگلیسی

The flow control of hydraulic transformers is a great challenge. To meet this challenge, a new kind of hydraulic transformer, variable hydraulic transformer (VHT), is proposed in this work. This paper focuses on the power characteristics of the newly proposed VHT, including instantaneous power, average power, power pulsation, and efficiency. In the analyses, the concepts of efficiency, input power, output power, starting angle, and ceasing angle are defined or redefined. To investigate the power characteristics, their models are derived by considering the governing factors such as the control angle of the swash plate and the structure of the port plate. This work highlights that the load flow can be adjusted by adjusting the control angle of the swash plate, and the power characteristics at the B-port produce a remarkable change. In addition, the VHT has a starting angle and a ceasing angle, and these two angles can be adjusted by the influencing factors. The results reveal that the power pulsation and the jump points of the instantaneous power are the primary causes of a less smooth work. Then, it is shown that the control angle of the port plate, the control angle of the swash plate, and the pressures at the ports are the three key elements for a stable operation. The results also reveal that the adjustment of the influencing factors can improve the efficiency.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.