Thermal/vibration joint experimental investigation on lightweight ceramic insulating material for hypersonic vehicles in extremely high-temperature environment up to 1500 °C

Wu, Dafang; Lin, Lujin; Ren, Haoyuan

doi:10.1016/j.ceramint.2020.02.241

Cited by 30 publications

(7 citation statements)

References 13 publications

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“…The sandwich structure, being a novel lightweight and high load-bearing composite material, has emerged as an effective design solution in various industrial applications. [1][2][3] Entangled metal wire mesh (EMWM) stands out for its elastic porous structure, displaying remarkable properties such as elasticity, rigid damping, high temperature resistance, and corrosion resistance, making it a preferred choice in aerospace and military fields. [4,5] Incorporating EMWM as a flexible sandwich layer, the sandwich cylindrical shell with entangled metallic wire mesh (SCS-EMWM) showcases significant advantages in extreme environments, demonstrating exceptional resistance to high temperatures and thermal vibrations.…”

Section: Introductionmentioning

confidence: 99%

Thermo‐Mechanical Characteristics of a Sandwich Cylindrical Shell with Entangled Metallic Wire Mesh: Numerical and Experimental Analysis

Xue,

Lin,

Wei

et al. 2023

Adv Eng Mater

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As a novel lightweight composite structure with notable mechanical resistance and thermal insulation characteristics in high‐temperature environments, the sandwich cylindrical shell with entangled metallic wire mesh (SCS‐EMWM) has been growing interest in industrial applications. This study focuses on investigating the thermo‐mechanical behavior of the SCS‐EMWM in high‐temperature environments. The static mechanical properties of entangled metal wire mesh (EMWM) are first characterized, and the macroscopic mechanical properties are identified using the Ogden–Mullins model. Subsequently, the deformation modes at different densities and temperatures are analyzed through theoretical and finite element methods. The radial compression test of SCS‐EMWM is performed to characterize its energy dissipation (ΔW), loss factor (η), and secant stiffness (K). The quasi‐static loading‐unloading results of the EMWM reveal a positive correlation between temperature, density, and the mechanical behavior. In addition, as the density and temperature increase, the peak load of SCS‐EMWM continuously increases from 20 to 200 N. Under high‐temperature conditions, the radial compression test of SCS‐EMWM reveals a significant concurrence between experimental and simulation results regarding load variations. Furthermore, in comparison to EMWM, the loss factor of SCS‐EMWM exhibits an approximate increase of 0.1 and shows a positive correlation with temperature, while it decreases with increasing density.

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Section: Introductionmentioning

confidence: 99%

Thermo‐Mechanical Characteristics of a Sandwich Cylindrical Shell with Entangled Metallic Wire Mesh: Numerical and Experimental Analysis

Xue,

Lin,

Wei

et al. 2023

Adv Eng Mater

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“…Due to the outstanding rapid arrival, strong maneuvering, and precision strike capabilities of the HFV, the important strategic significance and extremely high application value exist in applications such as ultra‐high‐speed aerospace transportation and fast space shuttles. The technology of the HFV includes multiple disciplines such as aerodynamics, 1 propulsion, 2 heat transfer, 3 materials, 4 and flight control, 5‐7 among which flight guidance and control technology is one of the cores and key technologies for the development of the HFV. Generally, in research, HFVs can be divided into air‐breathing powered HFVs, unpowered re‐entry HFVs, and powered autonomously accelerating HFVs 8 .…”

Section: Introductionmentioning

confidence: 99%

Integrated guidance and control of hypersonic flight vehicle with coordinated mission requirement and input constraint

Shou

Yan

et al. 2023

Intl J Robust & Nonlinear

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An integrated adaptive guidance and control algorithm is investigated for the hypersonic flight vehicle (HFV) under the objection of coordinated for mission requirement and control capability. The design pressure to avoid input saturation is placed in the guidance loop by analyzing the hard restriction on the fuel-air equivalence ratio (FER) and the acceleration mission objective. Using the concept of model self-shaping, a loss function is established to achieve the self-optimization of the reference model bandwidth. The reference trajectory of the velocity slows down as the FER approaches its maximum value and becomes faster as the FER demand decreases. The backstepping frame is applied in the attitude control system, and the dynamics uncertainty with the unknown aerodynamic parameters is constructed using neural network. The Karush-Kuhn-Tucker multiplier is used as a link parameter of the guidance and control integrated framework and is introduced into the adaptive update law.An adaptive algorithm is proposed with the estimating evaluation derived from the serial-parallel estimation model. A HFV simulation test with FER constraint shows that the adaptive integrated guidance and control can follow the desired trajectory with high tracking accuracy, and the control input can be kept within a feasible value.

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“…Vibration testing is one of the most popular methods of experimentation used to understand complicated systems and their dynamical responses. It is often used for systems such as weapons, pipelines, turbines, aircraft, or nuclear plants that exhibit high complexity as vibration testing is often a significantly cheaper alternative than subjecting the system of interest to its service environment [ 1 , 2 , 3 , 4 ]. Failure to understand the dynamical responses for such complex systems may lead to unexpected costs, delays, or even catastrophic failure.…”

Section: Introductionmentioning

confidence: 99%

Insights on the Impacts of Accelerometer Location on the Dynamics and Characteristics of Complex Structures

Takeshita,

Madrid,

Granillo

et al. 2023

Sensors

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There exists a high level of difficulty in understanding the physical responses of complex dynamical systems. To this end, researchers have previously used different measurement techniques, such as displacement sensors or accelerometers, in the laboratory to capture a system’s dynamics. A well-known structure in the literature is the Box Assembly with Removable Component (BARC) whose purpose is to gain a deep understanding of testing complex systems. Further breaking down the structure, the Removable Component (RC) portion is often used as a relatively simplified version which retains significant complexity from the original system. However, the placement of accelerometers on the RC have varied greatly throughout the literature which presents a challenge in comparing results and may not accurately represent the system’s dynamics. Finite Element Analysis (FEA) is performed for three common accelerometer locations to determine how their placement affects the frequencies and mode shapes for the RC and results are compared against those without accelerometers. Free vibration experiments are carried out to understand the variation of frequencies and damping for each accelerometer location to obtain the overall response for the first mode of vibration. Next, random vibration experiments are run to gain insight on the interaction between linear and nonlinear responses based on excitation level, while showing the influence of an accelerometer’s location on system dynamics. The results demonstrate that the location of the accelerometer is highly influential on the linear and nonlinear characteristics of the system. It is proved that for the first mode of vibration, nonlinear softening and nonlinear damping behaviors may take place due to the interaction between the location of accelerometers, direction of excitation, and response axis analyzed.

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Thermal/vibration joint experimental investigation on lightweight ceramic insulating material for hypersonic vehicles in extremely high-temperature environment up to 1500 °C

Cited by 30 publications

References 13 publications

Thermo‐Mechanical Characteristics of a Sandwich Cylindrical Shell with Entangled Metallic Wire Mesh: Numerical and Experimental Analysis

Thermo‐Mechanical Characteristics of a Sandwich Cylindrical Shell with Entangled Metallic Wire Mesh: Numerical and Experimental Analysis

Integrated guidance and control of hypersonic flight vehicle with coordinated mission requirement and input constraint

Insights on the Impacts of Accelerometer Location on the Dynamics and Characteristics of Complex Structures

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