Parametric modeling and updating for bolted joints of aeroengine casings

Zhang, Xue; Fei, Chengwei; Wang, Jianjun; Xingyu, Yao

doi:10.1177/0954406215607900

Cited by 12 publications

(8 citation statements)

References 25 publications

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“…With the well-developed model, the contact stiffness can be well predicted while the prediction of damping is challenging, especially when macroslip occurs between the coupling interfaces. Furthermore, experimental tests are usually applied to obtain modal parameters for model updating [28,[30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Determination of Contact Stiffness and Damping of a Tie-Bolt Rotor with Interference Fits Using Model Updating with Thin-Layer Elements

Yuan

2020

Shock and Vibration

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Tie-bolt rotors are commonly applied in aeroengines and gas turbines, and interference fits ensure accurate positioning for disk assembling. This paper presents experimental and numerical studies on the stiffness and damping properties of a tie-bolt rotor with interference fits under different preloads. An FE model incorporating thin-layer elements is used to carry out model updating to predict the contact stiffness and damping characteristics. A two-step model updating approach of the tie-bolt rotor using the response surface optimization is implemented. Finally, a quasistatic FE simulation concerning the interference fits and sensitivity analysis is performed to validate the experimental results. Press fit induces a bilinear contact stiffness. Also, modal damping demonstrates a more sensitive and nonmonotonic behavior versus preload.

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Section: Introductionmentioning

confidence: 99%

Determination of Contact Stiffness and Damping of a Tie-Bolt Rotor with Interference Fits Using Model Updating with Thin-Layer Elements

Yuan

2020

Shock and Vibration

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“…Ahmadian et al carried out model updating of joints in the AWE-MACE system utilizing a sensitivity method within the linear range [12]. Zhai et al constructed a parametric model of bolt joints of aeroengine stator system and updated the model with multicharacteristic responses [13]. Cunha et al applied the model updating method to identify the stiffness of bolt joints in civil construction structural systems [14].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Stochastic Model Updating of Bolt‐Jointed Structure

Zhan

Guo

Lin

et al. 2018

Shock and Vibration

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Bolt-jointed structure is widely used in engineering fields. The dynamic characteristics of bolt-jointed structure are complex, and there is a variety of uncertainties in the jointed structure. In this study, modeling and updating of a typical bolt-jointed structure are investigated. In modeling terms, three-dimensional brick elements are used to represent the substructures, and thin-layer elements with virtual material properties are employed to represent the joint interface. Modal tests and experimental modal analysis of substructures and built-up structure are performed. A hierarchical model updating strategy based on Bayesian inference is applied to identify the unknown parameters in the substructures model and those in the overall model. Radial basis function (RBF) models are used as surrogates of time-consuming finite element model with high resolution to avoid the enormous computational cost. The results indicate that the updated model can reproduce modal frequencies used in updating and can predict those not used in the updating procedure.

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“…Kim et al, 10 Sharma and Desai, 11 and He and Zhu, 12 focused on the refined FE modeling method for bolted joint structures. Zhai et al, [13][14][15][16] investigated on the simulation of mechanical features of bolted joints based on FE modeling. Actually, the above modeling methods include non-parametric modeling approach and parametric modeling approach.…”

Section: Introductionmentioning

confidence: 99%

Equivalent simulation of mechanical characteristics for parametric modeling of bolted joint structures

Wang

Fei

Wang

2017

Advances in Mechanical Engineering

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To accurately describe mechanical characteristics in the modeling and analysis of bolted joint structure in complex mechanical system, this article investigates on the equivalent parameters of mechanical characteristics (tension and compression stiffness, bending stiffness, shear stiffness, and torsion stiffness) of bolted joints by theoretical derivation and provides an effective modeling approach with thin-layer element theory and equivalent parameters as well. First, the equivalent parameters of mechanical characteristics of bolted joints are achieved. And then the finite element model of bolted joint is established by equivalent parameters, called as parametric modeling method. Based on two cases of study, the mode analyses of parametric finite element models are implemented with dynamic test data to validate the developed parametric finite element models of bolted joints with the equivalent parameters. It is shown from the investigations that parametric finite element models have higher precision than finite element model in structural dynamic analysis because the analytical results based on parametric finite element models are closer to test data. It is fully demonstrated that the equivalent parameters may effectively simulate the mechanical characteristics of bolted joint structures, and the parametric modeling approach with equivalent parameters is efficient and high fidelity for bolted joints in complex machinery due to high precision in mode analysis. The efforts provide an effective modeling method for simulating the mechanical characteristics of bolted joints and designing bolted joint structure in complex machinery.

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Parametric modeling and updating for bolted joints of aeroengine casings

Cited by 12 publications

References 25 publications

Determination of Contact Stiffness and Damping of a Tie-Bolt Rotor with Interference Fits Using Model Updating with Thin-Layer Elements

Determination of Contact Stiffness and Damping of a Tie-Bolt Rotor with Interference Fits Using Model Updating with Thin-Layer Elements

Modeling and Stochastic Model Updating of Bolt‐Jointed Structure

Equivalent simulation of mechanical characteristics for parametric modeling of bolted joint structures

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