The Static Unbalance Analysis and Its Measurement System For Gimbals Axes of an Inertial Stabilization Platform

Yang, Hui; Zhao, Yan; Li, Min; Wu, Falin

doi:10.1515/mms-2015-0002

Cited by 5 publications

(6 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They model the base coordinate system with regard to which the position of a moving object is measured when it rotates around its centre of mass and moves along with it [6][7][8]. In addition, the set motion direction is kept.…”

Section: A Block Diagram Of the Measuring Methodsmentioning

confidence: 99%

“…They determine the emergence of a dynamic error along the two measuring coordinates. Within the mathematical models (8) and (9) those effects are divided into the linear and angular ones, whose vectormatrix form can be written as follows:…”

Section: Synthesis Of the Additional Measurement Channelmentioning

confidence: 99%

“…4. The latter is based on the vector-matrix differential (8), where the structure of the main measurement channel and the mathematical models (9) …”

Section: Synthesis Of the Additional Measurement Channelmentioning

confidence: 99%

See 2 more Smart Citations

А Меаsuring Method for Gyro-Free Determination of the Parameters of Moving Objects

Dichev¹,

Koev²,

Bakalová³

et al. 2016

Metrology and Measurement Systems

View full text Add to dashboard Cite

The paper presents a new method for building measuring instruments and systems for gyro-free determination of the parameters of moving objects. To illustrate the qualities of this method, a system for measuring the roll, pitch, heel and trim of a ship has been developed on its basis. The main concept of the method is based, on one hand, on a simplified design of the base coordinate system in the main measurement channel so as to reduce the instrumental errors, and, on the other hand, on an additional measurement channel operating in parallel with the main one and whose hardware and software platform makes possible performing algorithms intended to eliminate the dynamic error in real time. In this way, as well as by using suitable adaptive algorithms in the measurement procedures, low-cost measuring systems operating with high accuracy under conditions of inertial effects and whose parameters (intensity and frequency of the maximum in the spectrum) change within a wide range can be implemented.

show abstract

Section: A Block Diagram Of the Measuring Methodsmentioning

confidence: 99%

Section: Synthesis Of the Additional Measurement Channelmentioning

confidence: 99%

See 1 more Smart Citation

А Меаsuring Method for Gyro-Free Determination of the Parameters of Moving Objects

Dichev¹,

Koev²,

Bakalová³

et al. 2016

Metrology and Measurement Systems

View full text Add to dashboard Cite

show abstract

“…Yu and Zhao [1] presented a novel method to measure UTs in a two axes gimbaled seeker using a measuring instrument with three weight sensors, but this method was insufficient for the higher performances of a seeker owing to the limited sensor's own accuracy. Yang et al [9] developed a method to measure static unbalance of gimbal axis using drive current, and a balanced simulator is used to verify the proposed approach by the load and repeatability tests and the results showed that the developed measuring system is able to achieve a high precision with a greater stability. For FT, direct-driven gimbal is the research object of this paper, so the FT mainly comes from bearings.…”

Section: Introductionmentioning

confidence: 99%

A Uniform Method of Mechanical Disturbance Torque Measurement and Reduction for the Seeker Gimbal in the Assembly Process

Shang

2017

Mathematical Problems in Engineering

View full text Add to dashboard Cite

In the manufacturing process of seekers, the reduction of disturbance torques (DTs) is a critical but time-consuming work. The innovation of the paper is to present a uniform method to measure and reduce mechanical DTs during gimbal's assembly process. Firstly, the relationships between assembly parameters and DTs are established and analyzed by theoretical model. And then, a measuring system is established to measure the driven torque of the gimbal's torque motor. With the goal of stabilizing and minimizing the driven torque, all assembly parameters relating to DTs could be adjusted. Through the proof of a lot of experiments, this proposed method could reduce the bias and fluctuation of these mechanical DTs. This method could also be used for the mechanical DTs reduction of most similar productions and improve the quality and efficiency during their system assembly process.

show abstract

“…Their commercial products have a resolution of 0.1 g cm for a light seeker. Similarly, Yang et al 15 and Zhan et al 16 proposed different prototypes for the static unbalance measurement system. Based on Zhan and colleagues early work, 16,17 the flexure-based mechanism is proposed and acts as a bridge between the double-frame mechanism and a force sensor.…”

Section: Introductionmentioning

confidence: 99%

Force transmission of flexure-based leverage mechanism for static unbalance measuring system under self-gravity effect

Wang

Liu

Guan

et al. 2017

Advances in Mechanical Engineering

View full text Add to dashboard Cite

This article proposes a flexure-based leverage mechanism that improves the performance of the static unbalance measurement system in terms of sensitivity and precision. The primary function of the flexure-based leverage mechanism is to transform the objective unbalance force/moment from the double-frame platform to an electromagnetic force balance sensor. A model of the flexure-based leverage mechanism was established to investigate the displacement/force amplification based on the elastic model. The finite element method was used to verify the analytical solutions. Considering the gravity effects, the self-weight of the rigid bodies in this leverage mechanism has an effect on the reading in the sensors. However, the linearity characteristics are not sensitive to the self-weight of the proposed leverage mechanism and the stiffness of the flexure hinges. Virtual experiments conducted to verify the linearity and sensitivity of the system indicated that depending on the leverage function of the flexure-based leverage mechanism, the systematic sensitivity is less than 0.02 g/(g cm), the resolution is 0.0013 g cm, and the maximum linearity error is 2.7%.

show abstract

The Static Unbalance Analysis and Its Measurement System For Gimbals Axes of an Inertial Stabilization Platform

Cited by 5 publications

References 24 publications

А Меаsuring Method for Gyro-Free Determination of the Parameters of Moving Objects

А Меаsuring Method for Gyro-Free Determination of the Parameters of Moving Objects

A Uniform Method of Mechanical Disturbance Torque Measurement and Reduction for the Seeker Gimbal in the Assembly Process

Force transmission of flexure-based leverage mechanism for static unbalance measuring system under self-gravity effect

Contact Info

Product

Resources

About