Ning Hu
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Ning Hu has a total of 13 co-authors. Here are the top co-authors by number of shared publications:
- Hui Hu
Key Laboratory of Testing Technology for Manufacturing Process MOE, Southwest University of Science and Technology, Mianyang 621010, China
1 shared publication - Jishuo Wang
Key Laboratory of Testing Technology for Manufacturing Process MOE, Southwest University of Science and Technology, Mianyang 621010, China
1 shared publication - Jun Zhou
Key Laboratory of Testing Technology for Manufacturing Process MOE, Southwest University of Science and Technology, Mianyang 621010, China
1 shared publication - Kaiyan Huang
Key Laboratory of Testing Technology for Manufacturing Process MOE, Southwest University of Science and Technology, Mianyang 621010, China
1 shared publication Lu Wang
Hebei university of Technology
1 shared publicationMingxi Deng
Chongqing University
1 shared publication
Latest Publications
- Open Access
Cut-Dependent Topology Optimization for Enhancing Shear-Mode Purity in Lithium Niobate Wafers
We present a topology-optimization methodology for designing single-sided, tri-state electrode patterns (+V, 0, electrode-free) that maximize shear-mode purity in lithium niobate (LiNbO3) wafers. The framework combines a complex-Hermitian adjoint sensitivity formulation based on Wirtinger calculus with a coarse–fine design-mesh decomposition and Heaviside projection, and treats the bottom-face electrical boundary condition as an explicit design variable. Applying the method to five crystal cuts (X, Y, Z, 41°Y, 128°Y) over 3.30–4.10 MHz under grounded and single-sided configurations, we find that the optimal boundary condition is jointly determined by crystal cut and frequency through the rotated piezoelectric tensor and that topology optimization improves purity by up to 28.8 percentage points when the baseline is poorly matched but can be counterproductive when it is already optimal (Z-cut). We distil these behaviors into a three-regime taxonomy that predicts, a priori, when optimization is worthwhile. The result is a reusable design methodology, together with per-cut design rules, for shear-mode LiNbO3 transducers.
Open AccessCut-Dependent Topology Optimization for Enhancing Shear-Mode Purity in Lithium Niobate Wafers
We present a topology-optimization methodology for designing single-sided, tri-state electrode patterns (+V, 0, electrode-free) that maximize shear-mode purity in lithium niobate (LiNbO3) wafers. The framework combines a complex-Hermitian adjoint sensitivity formulation based on Wirtinger calculus with a coarse–fine design-mesh decomposition and Heaviside projection, and treats the bottom-face electrical boundary condition as an explicit design variable. Applying the method to five crystal cuts (X, Y, Z, 41°Y, 128°Y) over 3.30–4.10 MHz under grounded and single-sided configurations, we find that the optimal boundary condition is jointly determined by crystal cut and frequency through the rotated piezoelectric tensor and that topology optimization improves purity by up to 28.8 percentage points when the baseline is poorly matched but can be counterproductive when it is already optimal (Z-cut). We distil these behaviors into a three-regime taxonomy that predicts, a priori, when optimization is worthwhile. The result is a reusable design methodology, together with per-cut design rules, for shear-mode LiNbO3 transducers.
- Open Access
- 10 June 2026
- Published by Taylor & Francis in Nondestructive Testing and Evaluation
- p. 1-21
Decoupling fatigue micro-crack orientation and length via one-way collinear bulk-wave mixing with a linear receiver array
1. Fatigue micro-cracks are among the most insidious precursors to failure in metallic components. During crack initiation and early propagation stages, these micro-cracks are typically minute and ...
- 10 June 2026
- Published by Taylor & Francis in Nondestructive Testing and Evaluation
- p. 1-21
Open AccessDecoupling fatigue micro-crack orientation and length via one-way collinear bulk-wave mixing with a linear receiver array
1. Fatigue micro-cracks are among the most insidious precursors to failure in metallic components. During crack initiation and early propagation stages, these micro-cracks are typically minute and ...