COMPOSITES SCIENCE AND ENGINEERING

Research on the ablation properties of 2.5D woven carbon fiber reinforced Zr-based ceramic composites

WANG Running, HE Caixin, QU Zhenjiang, ZHANG Jiaping

2026, 0(1): 1-8. DOI: 10.19936/j.cnki.2096-8000.20260128.001

Asbtract ( 36 )

PDF (17626KB) ( 20 )

References | Related Articles | Metrics

Continuous fiber reinforced ceramic matrix composites are considered highly promising thermal structural materials due to their low density, excellent mechanical properties, and outstanding oxidation and ablation resistance. In this study, a 2.5D woven carbon fiber preform was used as the reinforcement, and carbon fiber reinforced Zr matrix ceramic composites were fabricated by a hybrid technique utilizing both chemical vapor and reactive melt infiltration. The ablation behavior of the composites was investigated under oxyacetylene and oxy-kerosene environments. The results showed that after 100 s of ablation at 2 200 ℃ in an oxyacetylene flame, the composite structure remained intact, with linear and mass ablation rates of -0.74 μm/s and 1.51 mg/s, respectively. Under oxy-kerosene ablation at 1 300 ℃ for 100 s, the values for the linear and mass ablation rates are -0.99 μm/s and 11.48 mg/s. The ZrO₂+SiO₂ oxide protective layer formed on the surface after oxygen-acetylene ablation can effectively block oxygen diffusion into the matrix, endowing it with good ablation resistance. However, under oxygen-kerosene ablation conditions, the water vapor in the combustion gas reacts with SiO₂ to form gaseous products, resulting in a porous and loose SiO₂ protective layer. These pores become diffusion channels for oxidizing gases, leading to oxidation of the matrix and fibers, which consequently reduces erosion resistance of the composites.

Mechanical properties analysis and prediction of glass fiber reinforced wheat straw fiber/polylactic acid composites

MU Wenlong, ZHANG Shikun, LI Shijie, CHEN Liangyu, JIANG Junwei

2026, 0(1): 9-15. DOI: 10.19936/j.cnki.2096-8000.20260128.002

Asbtract ( 32 )

PDF (11752KB) ( 16 )

References | Related Articles | Metrics

In order to study the effect of glass fiber (GF) on the mechanical properties of wheat straw fiber/polylactic acid (WSF/PLA) composite, glass fiber reinforced wheat straw fiber/polylactic acid (GFWSF/PLA) composites were prepared and analyzed using tensile tests, differential scanning calorimetry (DSC), and Micro-CT scanning. The results show that GF can effectively transfer and withstand loads, so the mechanical properties of hybrid composites are significantly improved. After adding 25% of GF, the tensile strength of the composite reaches 52.4 MPa (compared with the WSF/PLA composite by more than 40%), and within a certain range, the mechanical properties of the composites gradually increase with the increase of GF content. Both WSF and GF can increase the glass transition temperature (T_g) of the composite to 63.22 ℃ and 67.43 ℃, respectively, compared with 61.62 ℃ of pure PLA, which improves the heat resistance of the composite. The addition of WSF and GF also reduces the cold crystallization temperature (T_cc) of the composite from 95.03 ℃ to 90.00 ℃ for pure PLA, which makes the composite easier to crystallize. Micro-CT can effectively extract the distribution characteristics of GF in the matrix. Combined with the fitting function of Micro-CT results, test results, and the Halpin-Tsai empirical formula, a mechanical properties prediction model considering the real fiber distribution inside the composite was established, and the mechanical properties prediction of glass fiber-straw fiber-polylactic acid three-phase composite was realized.

Experimental and simulation study on the tear resistance of airship envelope materials under high and low temperatures

WANG Xinyu, ZHOU Jinlong, SUN Huiyu

2026, 0(1): 16-23. DOI: 10.19936/j.cnki.2096-8000.20260128.003

Asbtract ( 30 )

PDF (7972KB) ( 17 )

References | Related Articles | Metrics

This article studies a new type of composite material structure for airship envelopes, which consists of a polyurethane matrix and a plain weave nylon reinforcement. Based on the Ogden constitutive model, the mechanical properties of the envelope material in the warp and weft directions are fitted. The tear performance of the envelope material under high and low temperature conditions was studied by conducting tear tests at -5 ℃, 80 ℃, and room temperature. The tear performance of the envelope material with a central prefabricated crack was simulated using the extended finite element method (XFEM). Based on the experimental and simulation results, the impact of prefabricated cracks on the mechanical properties of the envelope material at different temperatures was systematically evaluated, and the crack propagation process and path were further analyzed. The simulation results were in good agreement with the experimental results. The results show that when the temperature changes from -5 ℃ to 80 ℃, the maximum tear strength decreases by about 40% and the tear strain increases by about 28%. Therefore, it is necessary to pay attention to the tear characteristics of the envelope material at high temperature. The extended finite element method used in this paper has strong applicability for simulating the tear behavior of airship envelope materials.

Experimental study on the tensile performance of GFRP bonded-bolted hybrid joints with different adhesives

CHEN Jiang, XIAO Xiao, LIU Mingfan, OUYANG Ronghai

2026, 0(1): 24-32. DOI: 10.19936/j.cnki.2096-8000.20260128.004

Asbtract ( 34 )

PDF (8303KB) ( 15 )

References | Related Articles | Metrics

To promote the application of glass fiber-reinforced polymer (GFRP) in the civil engineering industry, this study conducted tensile tests on bolted-bonded hybrid joints using a brittle adhesive and two flexible adhesives with different tensile modulus and strengths, exploring joint performance under varying overlap lengths and adhesive thicknesses. The results show that among the three adhesives, the flexible adhesive with high modulus and high strength exhibited the highest load-bearing capacity. With increasing overlap length, the load-bearing capacity of mixed joints for all three adhesives increased. As adhesive thickness increased, the capacity of brittle adhesive joints decreased, while that of low modulus, low strength flexible adhesive increased. The flexible adhesive with high modulus and high strength achieved the best load-bearing capacity at an intermediate thickness of 1.0 mm. The low modulus, low strength flexible adhesive enabled combined bolted-bonded load sharing at thicknesses of 1.0 mm and 1.5 mm, whereas the other two adhesives could not achieve such synergy, exhibiting segmented brittle load-bearing characteristics during the loading process. The failure modes of the joints for all three adhesives were predominantly shear and splitting failure of the GFRP plates. This study provides a reference for future engineering practice.

Investigation on the performance of modified DETDA high-temperature wet winding resin for wet winding composite shell

HAO Shang, YAO Zhuojun, LIU Xiangyu, WANG Xiaolei, TIAN Jie

2026, 0(1): 33-38. DOI: 10.19936/j.cnki.2096-8000.20260128.005

Asbtract ( 36 )

PDF (5602KB) ( 19 )

References | Related Articles | Metrics

In response to the demand for carbon fiber composite engine shell winding technology, organic boron compounds were used to modify DETDA curing agents, enhancing the activity of reaction sites. By combining the modified curing agent with TDE-85 epoxy resin/reactive diluent, the curing temperature can be reduced from 190 ℃ to 160 ℃, and the T_g can reach 241.5 ℃. Viscosity time and thermal analysis tests were conducted on the resin of the system. Explored the influence of modified curing agents on the molding process, and the properties of its resin casting body and composite shell were explored. The initial viscosity of the resin system is 800 mPa·s, with a shelf life of 8 h, which meets the requirements of the winding molding process for large engine shell. After curing, the resin have a high T_g, and it have excellent strength and toughness. This resin was compounded with T800 carbon fiber, resulting in a composite shell with excellent sealing properties. The mean burst pressure tested by parallel water pressure burst test is 24.6 MPa.

Progressive damage analysis of unidirectional fiber composites under bending via direct multiscale method

XU Xinyi, MA Lianhua, ZHOU Wei

2026, 0(1): 39-44. DOI: 10.19936/j.cnki.2096-8000.20260128.006

Asbtract ( 42 )

PDF (4882KB) ( 31 )

References | Related Articles | Metrics

Based on the ABAQUS simulation platform, an efficient parallel multiscale method, direct FE²(DFE²), was used to investigate the progressive damage behavior of carbon fiber reinforced polymer (CFRP) under bending loads. The DFE² method adopted in this study enables simultaneous computation of the macroscale model and the microscale representative volume element (RVE). Considering the random distribution of fibers within the matrix, a parameterized microscale RVE model was generated using using Python scripts. Using custom UMATHT and UMAT subroutines within ABAQUS's built-in thermo-mechanical coupling module, a simulation approach was developed to model damage in polymer matrix based on a localized gradient-enhanced model. Comparative analysis between DFE² and direct numerical simulations (DNS) demonstrates that the DFE² method significantly improves computational efficiency while maintaining accuracy, leading to a substantial reduction in computational costs.

Numerical and experimental study on tensile and compressive translaminar fracture of additively manufactured C-CFRP

SUN Guangyong, WANG Qinhuai, JIA Xiaohang, PANG Tong, LUO Junjie

2026, 0(1): 45-54. DOI: 10.19936/j.cnki.2096-8000.20260128.007

Asbtract ( 39 )

PDF (16398KB) ( 18 )

References | Related Articles | Metrics

Additively manufactured continuous carbon fiber reinforced polymers (C-CFRP), known for their high design flexibility, have achieved rapid development; however, detailed studies on their intralaminar fracture performance remain lacking. In this study, compact tension (CT) and compact compression (CC) tests were conducted on additively manufactured C-CFRP specimens with a [0/90]_4S layup. Failure mechanisms were characterized using X-ray computed tomography (CT) and scanning electron microscopy (SEM). The results indicate that the tensile critical energy release rate ranged from 9.50 to 21.41 kJ/m², while the compressive critical energy release rates range from 22.18 to 188.97 kJ/m². SEM analysis reveal that the microscopic failure mechanisms in tensile fracture included fiber breakage, fiber pull-out, and interfacial debonding, with evidence of fiber bridging during the tensile process. Notably, X-ray CT results show the presence of compressive failure modes at the end of the compact tension specimens. Fiber bridging and end compressive failure contribute to an increase in tensile fracture toughness with increasing crack length. During compressive fracture, the macroscopic failure modes include buckling and compression-shear failure. As the fractured material retained load-bearing capacity during compression, the compressive fracture energy also increases with increasing crack length. This study enhances the understanding of tensile and compressive fracture behaviors of additively manufactured C-CFRP and provides reliable fracture parameters for simulating these materials.

Preparation of polycarbosilane modified chopped carbon fibers and high-temperature oxidation resistance of composites

XIE Yong, FU Huadong, DOU Jipeng, LIU Dizhi, QIN Yan

2026, 0(1): 55-61. DOI: 10.19936/j.cnki.2096-8000.20260128.008

Asbtract ( 31 )

PDF (11786KB) ( 16 )

References | Related Articles | Metrics

Derivative coatings of polycarbosilane are prepared on the surface of short-cut carbon fibers by chemical grafting method, and boron phenolic resin composites reinforced by short-cut carbon fibers are prepared using a molding process. The basic mechanism of the chemical grafting of polycarbosilane is investigated by scanning electron microscopy and Fourier infrared spectroscopy analysis. The flexural strength of the composites after oxidation at room temperature, 800 ℃, 1 000 ℃ and 1 200 ℃, as well as the microscopic morphology and physical phase evolution of the ablation center region after oxygen-acetylene flame ablation are tested to investigate the influence of polycarbosilane-derived coating on the high-temperature oxidation and ablation resistance of the composites. The results show that the flexural strength retention of the polycarbosilane-modified short-cut carbon fiber/phenolic numerical composites is still 12.77% after high-temperature and long-time heat treatment. And the modified short-cut carbon fiber/phenolic composites show excellent ablation resistance under the protection of polycarbosilane-derived coating. The microscopic morphology shows that a composite ceramic film is formed on the surface of the material to enhance the surface densities and protect the internal materials.

Heat regulation and control of two-dimensional thermal protection sturctures with metamaterials

CHEN Shengbing, WANG Xin, HE Xuzhao

2026, 0(1): 62-68. DOI: 10.19936/j.cnki.2096-8000.20260128.009

Asbtract ( 33 )

PDF (5128KB) ( 16 )

References | Related Articles | Metrics

Based on the heat regulation and control idea of metamaterials, a novel two-dimensional metamaterial thermal protection structure was devised. Compared with conventional thermal protection structures, a metamaterial layer consisting of high thermal conductivity materials and phase change materials was added to realize directional heat transporting and thermal energy store and management. Finite element method was adpoted to build the numerical simulation model. The local high temperature produced by uneven load of Gaussian distribution in space, and temperature oscillation caused by alternating load and step load in time were analyzed in detail. The simulation results indicate that the proposed metamaterial thermal protection structure can effectively suppress local high temperature caused by uneven load in space. Moreover, the metamaterial thermal protection structure is able to weaken the temperature fluctuation and shock caused by alternating and step thermal load. In the same load cases, the highest tempature on the outer surface of metamaterial thermal protection structure is reduced by 15.3% and the amplitude of stationary temperature oscillation was reduced by 48.6%, compared with the conventional thermal protection structures. Therefore, by introducing a metamaterial lay, not only is the thermal protection capacity of the thermal protection structures improved, but also their thermal shock resistance is increased, which provides an important reference for design of efficient thermal protection systems in future.

Fabrication and high-temperature properties of silicon nitride fiber-reinforced boron nitride matrix composite

PENG Zhe, LI Jiaojiao, YUAN Zhiqing, LI Song

2026, 0(1): 69-73. DOI: 10.19936/j.cnki.2096-8000.20260128.010

Asbtract ( 40 )

PDF (6687KB) ( 22 )

References | Related Articles | Metrics

Aiming at the application requirements of hypersonic vehicles for new high-temperature transparent composite materials, Si₃N_4f/BN composite was prepared by using PIP process with three-dimensional woven fabric of Si₃N_4f fiber satin weave as reinforcement and borazine as ceramic precursor. The structure and properties of Si₃N_4f/BN composite were characterized by SEM, XRD, high temperature bending and ablation. The results show that Si₃N_4f/BN composite appears uniform and dense texture and the density reaches 1.82 g/cm³. They have excellent high temperature mechanical properties with a flexural strength of 76.9 MPa at 1 400 ℃ and a strength retention rate exceeding 70%. At 1 400 ℃, the composite still maintains an amorph structure. Si₃N_4f/BN composite also exhibits excellent ablation resistance with a linear ablation rate of 0.026 mm/s for the test that adopted oxygen-acetylene ablation test in accordance with GJB 323A—1996. The surface of ablative area and the area along the direction of heat flow are emerged the ablation center area, the ablation transition area, and the non-ablated matrix area. In the ablation center, the fibers are consumed, leaving only a porous BN matrix and a small amount of oxides. In the ablation transition area, the surface of the fiber is wrapped by molten oxides. The non-ablated area is still a dense Si₃N_4f/BN matrix.

Microstructure characterization of 3D woven cylinder preform with weft skew considered

HU Jing'ai, JIAO Yanan, ZHANG Yifan, DUAN Jingjing

2026, 0(1): 74-81. DOI: 10.19936/j.cnki.2096-8000.20260128.011

Asbtract ( 31 )

PDF (9104KB) ( 15 )

References | Related Articles | Metrics

Micro-computed tomography (Micro-CT) was employed to elucidate the actual meso-scale architecture of 3D woven angle interlock cylinder preforms. A detailed analysis was conducted to ascertain the cross-sectional geometry and the spatial arrangement of yarns within each system. It was observed that the weft skew phenomenon occurred during the fabrication process of the cylinder preform. Under the premise that the cross-sectional profiles of warp and weft yarns are rectangular and lens-shaped, respectively, a geometric model for a 3D woven cylinder fabric exhibiting weft skew has been formulated. This model delineates the interdependencies among yarn parameters, fabric characteristics, and the structural dimensions of the cylinder preform. The model's accuracy has been quantified, with an error margin of -1.958%. The cylindrical specimen was meticulously prepared for subsequent analysis. Analysis of the findings revealed that the weft yarn skew typically ranges from 30° to 50°, a variance that is significantly influenced by the weft density. Notably, the skew increases with a higher weft density. These insights provide crucial technical guidance for the process design of 3D woven cylinder prefabrication.

Simulation and optimization based on RTM-prepreg process

CHEN Jie, XIE Jinxin, PENG Fei, ZHANG Fengjia, XU Linpeng, ZHOU-HE Lezi, ZHOU Huamin

2026, 0(1): 82-91. DOI: 10.19936/j.cnki.2096-8000.20260128.012

Asbtract ( 34 )

PDF (13731KB) ( 20 )

References | Related Articles | Metrics

The unsynchronized curing of prepreg and resin at the interface of RTM-prepreg process results in an obvious curing gradient, which reduces the mechanical properties of the interface. However, there are few studies on the co-curing process simulation and co-curing process curve. In this study, the mathematical models of the curing kinetics of epoxy resin and carbon fiber/epoxy resin prepreg were established, and the co-curing process was simulated by user-defined subroutine of ABAQUS software. The parameters of temperature profile such as heating rate, holding time, and holding temperature were optimized to simultaneous curing of the two materials at the interface. Finally, the reliability of the simulation results was verified by short beam shear experiments and double cantilever beam experiments. The results show that the two materials at the interface have exothermic coupling, but have little effect on the resin curing of the interface materials. The short beam shear strength and mode Ⅰ interlaminar fracture toughness of the interface of the laminate are better than those of the prepreg layer under different curing curve. When the temperature profile is about 5 ℃/min, the temperature is raised to 180 ℃ and kept for 2 hours, the mechanical properties of laminates are better than those of other curing curve. It has certain guiding significance for actual production.

Simulation of RTM molding process and analysis of void defect in composite battery case

ZHANG Sai, ZOU Wentao, SONG Tong, CHENG Congqian, CAO Tieshan, WU Xiaozhong, MENG Xianming, ZHAO Jie

2026, 0(1): 92-101. DOI: 10.19936/j.cnki.2096-8000.20260128.013

Asbtract ( 48 )

PDF (10942KB) ( 18 )

References | Related Articles | Metrics

The resin transfer molding (RTM) of the lower case of composite battery pack was designed, and simulation analysis of mold filling process and prediction of void defects based on PAM-RTM software. Firstly, the difference of mold filling time between two schemes in three kinds of outlet states was compared, and the influence of injection pressure and resin viscosity on RTM molding time was analyzed; secondly, the pressure change of the position near the injection port during the mold filling process was analyzed; finally, the distribution of macro/micro scale void defects in the components and the influence of injection pressure on void content were predicted, and the flow rate optimization theory was combined to control the resin. The results show that the injection pressure in the mold cavity can reduce the void content. The results show that the larger the pressure difference between the injection and discharge ports in the mold cavity, the lower the molding time, and it is affected by the injection position. There is a linear relationship between injection pressure and mold filling time, the lower the pressure, the more obvious the effect of shortening the mold filling time and the greater the viscosity of the longer the mold filling time. The void content is related to the front flow rate, the higher the injection pressure leads to the faster flow rate, the macro void formation decreases, and the micro void increases; and the flow rate optimization method of injection can significantly reduce the overall porosity level, but prolongs the molding cycle time.

Research on surface smoothness of composite honeycomb sandwich structure scarf repair

CUI Lijun, KONG Jiaoyue, CHEN Haiyan, QU Mingcheng, ZHAO Ziping

2026, 0(1): 102-108. DOI: 10.19936/j.cnki.2096-8000.20260128.014

Asbtract ( 33 )

PDF (5249KB) ( 17 )

References | Related Articles | Metrics

In order to ensure better surface smoothness of the composite honeycomb sandwich structure after scarf repair, in this paper, the effects of the compensation height of different replacement honeycomb cores and the curing temperature on the surface smoothness of the back panel of the composite honeycomb sandwich structure were studied when the replacement honeycomb cores were installed. Meanwhile, the effects of the quantity of filler ply, the composite caul plate, and the surface sealing of replacement honeycomb core hole on the surface smoothness of the cured repair ply were also studied. The research results show that when the height of replacement honeycomb core is equal to the outer surface of the original structure panel or not more than 1 mm, the back panel can obtain a better surface smoothness, and the maximum bulge deformation is 0.05 mm; installing a heating blanket on the back panel side can ensure the curing temperature at the bottom when the replacement honeycomb core cures. In addition, the back panel can obtain a better surface smoothness when the replacement honeycomb core is bonded by using adhesive film with a lower curing temperature than the original material of panel. When three filler plies are installed between the replacement honeycomb core and strucuture repair ply and a 0.4 mm caul plate is used for curing the repair ply, the cured repair ply can obtain a better surface smoothness, and the depression depth is 0.13 mm; when the replacement honeycomb core hole is sealing with potting compound before installing the structure repair ply. The cured repair ply can obtain a better surface smoothness.

The bending and failure behavior of carbon/glass hybrid 3D five-direction braided I-Beam composite

ZHAO Yuqing, LI Qianqian, LI Wei

2026, 0(1): 109-116. DOI: 10.19936/j.cnki.2096-8000.20260128.015

Asbtract ( 31 )

PDF (15652KB) ( 14 )

References | Related Articles | Metrics

Three-dimensional (3D) five-direction braided glass/carbon hybrid I-beam composites were prepared by using 3D braiding technology and vacuum assisted resin transfer technology, the four-point bending experiments of I-beam composites with different hybrid proportions and different hybrid positions were conducted, and the stress distribution and damage process were analyzed using three-dimensional digital image correlation (3D-DIC) technology. The results show that the strength of 1/3 carbon fiber axis yarn and 2/3 carbon fiber axis yarn is only increased by 4.5% and 11.5% compared with that of glass fiber, and the different proportion of carbon fiber has little effect on the strength of I-beam composites. The bending failure modes of I-beam are different when the carbon fiber distribution is different. The two samples of pure glass and carbon fiber at the lower flange belong to the failure mode of edge fracture near the lower press head, while the two samples of carbon fiber at the web, web and lower flange belong to the failure mode of the front and back dislocation tilt of the web. The three samples of carbon fiber on upper flange, upper flange and lower flange, upper flange and web all belong to the failure modes of longitudinal fracture in the center of the web. Combined with load-displacement curve and failure mode analysis, the carbon fiber is more suitable for mixing in the upper flange. When 1/3 carbon fiber is distributed in the upper flange and 2/3 carbon fiber is distributed in the upper and lower flange, the strength and deformation resistance of I-beam are better.

Lightweight design and manufacturing of carbon fiber reinforced composite web for face gear

WEI Ganjun, DU Chen, FU Bibo, YIN Hongling, YAN Yuesheng, PENG Xiongqi

2026, 0(1): 117-123. DOI: 10.19936/j.cnki.2096-8000.20260128.016

Asbtract ( 29 )

PDF (11141KB) ( 29 )

References | Related Articles | Metrics

As an important component of mechanical transmission systems, the lightweight design of the gear is of great significance in improving overall transmission efficiency and reducing energy consumption. In response to the lightweight requirements of helicopter gear transmission system, a composite web structure was designed for face gear using carbon fiber composite replacing high-strength steel in this paper. Based on equivalent design and finite element analysis, the design of key structural parameters for the carbon fiber reinforced composite web was completed. Different sizes of carbon fiber prepregs were designed by dividing the structural area, and the manufacture of variable thickness carbon fiber composite web has been realized. Under the condition of satisfying the requirements of structural strength and stiffness, the weight reduction of the entire gear reached 10.48%. The research work provides scientific basis and technical support for the lightweight design and manufacturing of gear web.

Machine learning-based design and optimization method of critical parts of wind turbine blades

LIU Junbang, LIU Qing, LIN Qiyang, ZHANG Wenhua, HUANG Xuanqing

2026, 0(1): 124-132. DOI: 10.19936/j.cnki.2096-8000.20260128.017

Asbtract ( 36 )

PDF (10066KB) ( 25 )

References | Related Articles | Metrics

An analysis of the structural performance of the spar cap of wind turbine blades was conducted, and a reverse structural optimization method for key components of wind turbine blades based on a machine learning model was developed, combining the use of FOCUS and the Python programming language. Taking a 1.5 MW wind turbine blade design as an example, the finite element analysis (FEA) model of the blade was established. The thickness of the spar cap was selected as the design variable, and the peak strain of the spar cap served as the optimization objective. A machine learning model was developed to reflect the underlying mapping relationship between the spar cap layup parameters, strain, and mass. Based on this machine learning model, a self-learning cyclic optimization method was developed. This method enables the rapid iteration of key parts of the same blade type under different wind fields and load conditions. The optimized spar cap improves performance by about 11.44% while maintaining the same cost. Due to its high portability, this method is expected to become an effective tool for the design and optimization of key parts of wind turbine blades.

Design and application of fully automatic adhesive pushing equipment for wind turbine blades based on gantry and six axis robots

ZHOU Ruirui, YAN Shaoyi, CHEN Xiaoliang, LI Zhenfei

2026, 0(1): 133-140. DOI: 10.19936/j.cnki.2096-8000.20260128.018

Asbtract ( 28 )

PDF (6041KB) ( 14 )

References | Related Articles | Metrics

The adhesive coating operation of wind turbine blades is one of the core steps in the main forming process of wind turbine blades, which directly affects the service life and power generation efficiency of the finished blades. In current blade production enterprises, manual hand-held scraper pushing of adhesive is still used, which results in poor adhesive quality and is greatly affected by employee proficiency. The matching rate between trial mold data and adhesive layer parameters is low, leading to serious adhesive waste and high labor costs. To solve the above problems, this article comprehensively considers the actual operational needs and functional analysis solutions on site. The design adopts the construction form of a gantry style mechanical arm, an industrial six axis robot, and intelligent adjustable adhesive boots. The programmable logic controller (PLC) is used to achieve collaborative control between various components, thereby realizing fully automatic adhesive pushing operation of large wind turbine blades. After the design was completed, experiments were conducted using the developed prototype, and the results showed that the application of the modified equipment can effectively reduce labor costs, improve operational efficiency, enhance adhesive quality, and reduce the amount of adhesive used.

Table of Content