A method and device for on-line measuring the moment of inertia of a rotating body

A technology of moment of inertia and rotating body, applied in the field of mechanical properties, can solve problems such as inconsistent speed values, low repeatability, and no physical meaning
CN104236795BInactive Publication Date: 2016-11-30ZHEJIANG NORMAL UNIVERSITY
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG NORMAL UNIVERSITY
Publication Date
2016-11-30
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method and device for measuring the rotation inertia of a revolution body online, and belongs to the field of mechanical properties. The revolution body to be tested is connected with a measurement device; a first standard inertia disc is installed, a time synchronous control system performs control, a first time faller experiment starts to be executed and a data acquisition system records displacement data; a second standard inertia disc is replaced, the time synchronous control system performs control, a second time faller experiment starts to be executed, and the data acquisition system records the displacement data again; the angular accelerations at the same speed time are respectively calculated according to the displacement data obtained two times, and therefore the rotation inertia of the revolution body can be obtained. The affect on the measurement result of speed and load factors in the faller method is avoided, and the measurement repeatability and precision are improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of mechanical properties, in particular to a method and device for online testing of the moment of inertia of a revolving body, which is suitable for measuring the moment of inertia of a revolving body that is inconvenient to disassemble from the working environment or has been assembled. Background technique

[0002] In precision instruments, engineering machinery, weapon systems, aerospace and other fields, the moment of inertia is an important parameter that affects the working characteristics of components and systems. The moment of inertia is the measure of the inertia of a rigid body in rotation, and it is related to the total mass, shape and position of the rotating shaft of the rigid body. For rigid bodies or rotary systems with complex shapes such as engine crankshafts and automobile clutches, it is very difficult to calculate their moments of inertia mathematically, so experimental methods are often used to ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More