The development of electric motors for automotive applications requires precise material models to simulate structural strength and NVH (Noise, Vibration, and Harshness) properties. Modeling the behavior of lamination stacks, composed of stacked steel plates, presents significant challenges. This study conducted dynamic and quasi-static experiments at various preload levels on an unmodified automotive lamination stack. Significant discrepancies were identified between stiffness values obtained from static and dynamic measurements. Consequently, using dynamically obtained stiffness values in static models, and vice versa, leads to inaccuracies and should be avoided. These results enhance the precision and efficiency of simulations used in the design and optimization of electric motors.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11546443 | PMC |
| http://dx.doi.org/10.1016/j.heliyon.2024.e39693 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
High energy density solid state symmetric supercapacitors using ionic liquid dispersed Li ion-perovskites.
RSC Adv
January 2025
Department of Physics, BITS Pilani-Pilani Campus RJ-333031 India
The study reports solid-state ceramic supercapacitors (SSCs) assembled using a novel composite electrolyte based on Li ion conducting perovskite-type LLTO (LiLaTiO) and an ionic liquid (EMIM BF). Small amounts of various ionic liquids (ILs) were added to LLTO to enhance the ionic conductivity and improve electrode compatibility. The optimal composition with approximately ∼6 wt% EMIM BF in LLTO exhibited a high ionic conductivity of around ∼10 Ω cm at room temperature, nearly three orders of magnitude higher than that of the pristine LLTO.
View Article and Find Full Text PDFPly Optimization of Composite Laminates for Processing-Induced Deformation and Buckling Eigenvalues Based on Improved Genetic Algorithm.
Materials (Basel)
January 2025
School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China.
The structure of thermoset composite laminated plates is made by stacking layers of plies with different fiber orientations. Similarly, the stiffened panel structure is assembled from components with varying ply configurations, resulting in thermal residual stresses and processing-induced deformations (PIDs) during manufacturing. To mitigate the residual stresses caused by the geometric features of corner structures and the mismatch between the stiffener-skin ply orientations, which lead to PIDs in composite-stiffened panels, this study proposes a multi-objective stacking optimization strategy based on an improved adaptive genetic algorithm (IAGA).
View Article and Find Full Text PDFHighly Strained Polymeric Monolayer Stacked for Wafer-Scale and Transferable Nanodielectrics.
ACS Nano
January 2025
Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210023, China.
As the keystones of molecular electronics, high-quality nanodielectric layers are challenging to assemble due to the strictest criteria for their reliability and uniformity over a large area. Here, we report a strained poly(4-vinylphenol) monolayer, ready to be stacked to form defect-free wafer-scale nanodielectrics. The thickness of the nanodielectrics can be precisely adjusted in integral multiples of the 1.
View Article and Find Full Text PDFMechanical Motion and Color Change of Humidity-Responsive Cellulose Nanocrystal Films from Sunflower Pith.
Polymers (Basel)
November 2024
Biomass Molecular Engineering Center and Department of Materials Science and Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, 130 West Changjiang Road, Hefei 230036, China.
Nanocellulose has prompted extensive exploration of its applications in advanced functional materials, especially humidity-responsive materials. However, the sunflower pith (SP), a unique agricultural by-product with high cellulose and pectin content, is always ignored and wasted. This work applied sulfuric acid hydrolysis and sonication to sunflower pith to obtain nanocellulose and construct film materials with humidity-responsive properties.
View Article and Find Full Text PDFInfluence of stacking sequence on the mechanical properties of banana-glass fiber hybrid laminates for automotive shells.
Heliyon
November 2024
Department of Mechanical Engineering, Khulna University of Engineering & Technology, Khulna, 9203, Bangladesh.
Article Synopsis
- The study explores the creation of hybrid laminated composite materials using banana fibers and woven glass fibers to improve mechanical properties for automotive applications.
- Various stacking sequences were tested, with results indicating that specific configurations enhanced tensile, flexural, and impact strengths, while maintaining moderate hardness levels.
- Microscopic analysis revealed that fiber-matrix debonding and fiber pull-out contributed to material failure under load, highlighting areas for further investigation in hybrid composites.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!