公开(公告)号：US20160010494A1

公开(公告)日：2016-01-14

申请号：US14743701

申请日：2015-06-18

Applicant: ROLLS-ROYCE PLC

Inventor： Mark Nicholas ERLUND ,  Arthur Laurence ROWE

IPC: F01D21/00 ,  G01H1/00 ,  G01H1/10 ,  F02C9/28

CPC classification number: F01D21/003 ,  F02C9/28 ,  F05D2220/32 ,  F05D2260/83 ,  F05D2270/05 ,  F05D2270/331 ,  F05D2270/334 ,  F05D2270/335 ,  F05D2270/44 ,  F05D2270/71 ,  G01H1/006 ,  G01H1/10 ,  G01L3/04 ,  G01M15/14

Abstract: A method to determine shaft stiffness of a rotating shaft, the shaft coupling a turbine to drive the rotation and a load to be driven by the rotation. For a given operational temperature and rotational speed of the shaft, the method including steps to determine polar moments of inertia of the load and the turbine. Determine natural torsional vibration frequency of the shaft. Determine the shaft stiffness by calculation using the inertias and vibration frequency.

Abstract translation: 一种确定旋转轴的轴刚度的方法，所述轴联接涡轮以驱动旋转和由旋转驱动的负载。 对于给定的轴的工作温度和转速，该方法包括确定负载和涡轮的极坐标惯性矩的步骤。 确定轴的自然扭转振动频率。 通过使用惯性和振动频率计算确定轴刚度。

公开(公告)号：US20140037430A1

公开(公告)日：2014-02-06

申请号：US13938800

申请日：2013-07-10

Applicant: ROLLS-ROYCE PLC

Inventor： Steven John THORPE ,  Clare BONHAM ,  Mark Nicholas ERLUND

IPC: G01K13/02

CPC classification number: G01K13/028

Abstract: A total temperature probe comprising a hollow elongate shroud defined by a shroud wall that envelops a first cavity. The shroud wall is comprised of an inner skin and an outer skin which enclose a second cavity therebetween. A temperature sensor mounted in the first cavity. In use, fluid flow is received into the first cavity, passes through at least one aperture in the inner skin into the second cavity and thence passes out of the shroud through at least one aperture in the outer skin. Beneficially, heat conduction across the inner skin is minimal.

Abstract translation: 一个总温度探头，其包括由包围第一腔的护罩壁限定的中空细长护罩。 护罩壁由内表皮和外皮组成，其内包围第二腔。 安装在第一腔中的温度传感器。 在使用中，流体流被接收到第一腔中，穿过内皮中的至少一个孔进入第二腔，从而穿过护罩穿过外皮中的至少一个孔。 有利的是，穿过内皮的热传导是最小的。