Yunbao Huang

A Projection-Free Sparse Model Order Reduction Method for Thermomechanical Multibody Dynamics

Guiming Liang, Haiyan Li, Yunbao Huang, Zhifeng Wang et autres

Thermomechanical coupling effects significantly influence the dynamic response of flexible multibody systems operating in thermal environments. Accurate simulation using conventional projection-based reduced-order models remains challenging due to strong nonlinearity and the time-varying nature of thermal fields. This work proposes a projection-free sparse-solving …

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Characterization of time-dependent x-ray drive at the center of a cylindrical hohlraum

Xufei Xie, Changshu Wu, Lifei 立飞 HOU 侯, Hongbo Cai et autres

Detailed investigation of the x-ray drive on the capsule at the center of the hohlraum is crucial to solve the "drive deficit" problem in inertial confinement fusion. A pioneering work for probing the drive flux at the hohlraum center by simultaneously measuring …

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A domed-rugby hohlraum design with high radiation and implosion performance

Longfei Jing, Liang Guo, Hang Li, Zhiwei Lin et autres

Abstract Obtaining inertial fusion energy requires higher gain in laser indirect drive inertial confinement fusion (ICF), but traditional cylindrical hohlraums face two persistent challenges: low energy coupling efficiency from the hohlraum to the capsule and severe inner beam interception by outer gold …

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Improvements in Sparse Response Surfaces for Engineering Optimization: A Reweighting Approach

Pu Li, Yunbao Huang, Songxi Hu, Senquan Yang

Engineering product optimization requires many times of simulation which is often time-consuming. The High Sparse Response Surface (HSRS) is an efficient method. However, the efficiency of coefficient solving and the stability of the results need to be improved. An improved HSRS method …

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An Improved High Sparse Response Surface Model with Iteratively Reweighted for Complex Products Optimization

Pu Li, Yunbao Huang, Songxi Hu, Senquan Yang

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Active Closed-Loop Transfer Learning-Based Surrogate Models for Telescopic Boom Forklift Optimization

Jingliang Lin, Haiyan Li, Yunbao Huang, Guiming Liang et autres

The telescopic boom forklift is a very efficient engineering equipment because of its distinctive boom system. However, to speed up product development and reduce costs, surrogate models should be constructed to replace computationally expensive co-simulation models for design optimization. In this paper, …

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l 1 norm based sparse reconstruction approach to compressed ultrafast photography of velocity interferometer system for any reflector

Huaquan Gan, Yunbao Huang, Feng Wang, Haiyan Li et autres

The one-dimensional velocity interferometer system for any reflector (VISAR) is widely used in inertial confinement fusion (ICF). Compressed ultrafast photography (CUP) is recently combined with VISAR to enable two-dimensional imaging, in which, the time-varied two-dimensional fringe images reconstruction from one image is …

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Laser repointing scheme for octahedral spherical hohlraums on the SGIII laser facility

Hui Cao, Xufei Xie, Yao‐Hua Chen, Yunsong Dong et autres

The novel octahedral spherical hohlraum can provide an ideal and practical approach for the next generation of laser systems to support both direct and indirect drive to achieve predictable and reproducible fusion gain via multiple schemes. To demonstrate its advantage in a …

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Global optimization of functional redundancy in a 6R robot for smoothing five-axis milling operations

Yuesheng Liu, Xindu Chen, Lei Wu, Guancheng Huang et autres

Functional redundancy optimization is one of the most effective ways to improve robotic posture and performance. However, owing to the trade-off between smoothness of the robot's motion and other important aspects of performance, the optimization problem is too nonlinear to be solved …

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A Chebyshev metamodel based BnB approach to efficiently search global optimum for 3D ICP point set registration

Yuesheng Liu, Xindu Chen, Kefeng Wang, Shipu Diao et autres

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Multi-Objective Surrogate Modeling Through Transfer Learning for Telescopic Boom Forklift

Jingliang Lin, Haiyan Li, Yunbao Huang, Junjie Liang et autres

Simulation and optimization methods have been widely used in forklift design due to their cost-effectiveness. However, this type of method involves challenges such as the accuracy of the simulation model and the simulation solution time. These challenges reduce the stability and precision …

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Characterization of radiation drive by measuring the localized re-emitted flux from the capsule in inertial confinement fusion experiments

Xufei Xie, Changshu Wu, Jinwen Chen, Shenye Liu et autres

Abstract We present for the first time characterization of the time-dependent radiation drive on the capsule by measuring the localized re-emitted flux at Shenguang-III prototype laser facility. The drive flux was obtained with measured re-emitted flux from the capsule and radiation fluxes …

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