Attitude Control for Spacecraft with Swinging Large-scale Payload

Jing, Wuxing; Xia, Xiwang; Gao, Cai; Wen-shu, Wei

doi:10.1016/s1000-9361(11)60036-8

Cited by 7 publications

(2 citation statements)

References 17 publications

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“…Substituting Equation (15) into Equation (20), supposing that the attitude error is slight and ignoring the term as small as the second order and the high-order terms of error products, it is easy to obtain the differential equation of attitude transformation matrix errors:…”

Section: Modeling Of Relative Euler Angle Errorsmentioning

confidence: 99%

A General Euler Angle Error Model of Strapdown Inertial Navigation Systems

Dang

et al. 2018

Applied Sciences

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Featured Application: The proposed general Euler angle error model can intuitively describe the process of attitude motion. Especially in large-angle attitude movements, such as missile erection and manipulator control, real-time attitude information can be measured, after which the attitude motion can be optimized.Abstract: Attitude error models play an important role in analyzing the characteristics of navigation error propagation for the design and operation of strapdown inertial navigation systems (SINS). However, the majority of existing attitude error models focus on misalignment, rather than Euler angle errors. Misalignment cannot directly describe attitude error propagation, which is an indirect measurement. To solve the problem, a general Euler angle error model of SINS is proposed. Based on Euler angle error propagation analysis, relative Euler angle errors, and convected Euler angle errors are introduced to compose the general Euler angle error model. Simulation experiments are carried out to verify the proposed model.

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Section: Modeling Of Relative Euler Angle Errorsmentioning

confidence: 99%

A General Euler Angle Error Model of Strapdown Inertial Navigation Systems

Dang

et al. 2018

Applied Sciences

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“…It employs a high‐energy laser beam to selectively melt and solidify metal powder, layer by layer creating components with intricate structures [4–5]. Selective laser melting technology has a higher cooling solidification rate (10 6 °C/s~10 8 °C/s) during the forming process than conventional processing (≤10 2 °C/s) which prevents the segregation of alloying elements and grain growth from forming components with fine grains, uniform microstructure, and excellent mechanical properties [6–8].…”

Section: Introductionmentioning

confidence: 99%

Study on microstructure and properties of selective laser melting formed AlSi10Mg alloy

Jian,

Wu,

Pai

et al. 2023

Materialwissenschaft Werkst

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The microstructure and properties of an AlSi10Mg alloy produced by selective laser melting were examined using optical microscopes, scanning electron microscopes, electron backscattered diffraction, and x‐ray diffraction. The results show that the mechanical characteristics of selective laser melting formed AlSi10Mg alloy is superior to those of traditional sand cast AlSi10Mg alloy due to fine grain strengthening and solid solution strengthening. AlSi10Mg alloy formed by selective laser melting is mainly composed of α‐aluminum solid solution, eutectic silicon with network structure and a small amount of Magnesium silicon precipitated phase, and different cross‐sections have unique microstructures and properties. The XOY plane is composed primarily of equiaxed grains with an average grain size of 7.34 μm and a {001} <100> cubic texture, and it has a hardness value of 130.7 HV 0.2. The majority of the YOZ plane, which has a {111}<110> brass R texture and a hardness value of 108.9 HV 0.2, comprises columnar crystals with an average grain size of 8.42 μm.

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