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Development of a model to simulate soil heavy metals lateral migration quantity based on SWAT in Huanjiang watershed,China
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作者 Pengwei Qiao Mei Lei +4 位作者 Sucai Yang Jun Yang Xiaoyong Zhou Nan Dong Guanghui Guo 《环境科学学报:英文版》 SCIE EI CAS CSCD 2019年第3期115-129,共15页
Lateral transportation of soil heavy metals in rainfall events could significantly increase the scope of pollution. Therefore, it is necessary to develop a model with high accuracy to simulate the migration quantity o... Lateral transportation of soil heavy metals in rainfall events could significantly increase the scope of pollution. Therefore, it is necessary to develop a model with high accuracy to simulate the migration quantity of heavy metals. A model for heavy metal migration simulation was developed based on the SWAT(Soil and Water Assessment Tool) model. This model took into consideration the influence of soil p H value, soil particle size, runoff volume, sediment amount,concentration of water-soluble heavy metals dissolved in runoff and insoluble absorbed to the soil particles. This model was reasonable in Huanjiang watershed, Guangxi Zhuang Autonomous Region, south China, covering an area of 273 km~2. The optimal drainage area threshold was determined by analyzing the effects of watershed subdivision on the simulation results to ensure the simulation accuracy. The main conclusions of this paper were:(1) watershed subdivision could affect simulation migration quantity of heavy metals;(2) the quantity of heavy metals transported by sediment accounted for 97%–99% of the total migration quantity in the study watershed. Therefore, sediment played the most important role in heavy metal migration;(3) the optimal drainage area threshold percentage to ensure high simulation accuracy was determined to be 2.01% of the total watershed;(4) with the optimal threshold percentage, this model could simulate the migration quantity of As, Pb and Cd accurately at the total watershed and subwatershed level. The results of this paper were useful for identifying the key regions with heavy metal migration. 展开更多
关键词 Soil heavy metal migration SIMULATION MODEL WATERSHED SUBDIVISION Optimal drainage area threshold PERCENTAGE SIMULATION accuracy
Research on the Computer Simulation Training Methods of Taekwondo Athletes before Competitions 预览
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作者 JIN Jun 《国际英语教育研究:英文版》 2019年第2期30-32,共3页
In Taekwondo competitions,the competition venues,the on-the-spot environment and the athletes'own tension and other factors have certain effects on the athletes'sports performances.Therefore,through the formul... In Taekwondo competitions,the competition venues,the on-the-spot environment and the athletes'own tension and other factors have certain effects on the athletes'sports performances.Therefore,through the formulation of the training plans during the competition period,we should ensure the adequate sleep,the reasonable diet,the adequate preparation activities,and the sufficient psychological preparation before the competitions,so that athletes can achieve excellent results.Based on the analysis of the pre-competition computer simulation training methods,this paper puts forward several specific research strategies. 展开更多
关键词 TAEKWONDO ATHLETES PRE-COMPETITION SIMULATION training COMPUTER SIMULATION strategy
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Development of an efficient contact-friction model for high-fidelity cargo airdrop simulation
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作者 Leiming NING Jichang CHEN Mingbo TONG 《中国航空学报:英文版》 SCIE EI CAS CSCD 2019年第5期1145-1155,共11页
High-fidelity cargo airdrop simulation requires the contact dynamics between an aircraft and a cargo to be modeled accurately. This paper presents a general and efficient contact-friction model for simulation of aircr... High-fidelity cargo airdrop simulation requires the contact dynamics between an aircraft and a cargo to be modeled accurately. This paper presents a general and efficient contact-friction model for simulation of aircraft-cargo coupling dynamics during airdrops. The proposed approach has the same essence as that of the finite element node-to-segment contact formulation, which leads to a flexible, straight forward, and efficient code implementation. The formulation is developed under an arbitrary moving frame with both the aircraft and the cargo being treated as general six-degree-of-freedom rigid bodies, and thus it eliminates the restrictions of lateral symmetric assumptions in most existing methods. Moreover, the aircraft-cargo coupling algorithm is discussed in detail, and some practical implementation details are presented. The accuracy and capability of the present method are demonstrated through three numerical examples with increasing complexity and fidelity. 展开更多
关键词 AIRDROP SIMULATION CARGO AIRDROP Contact-friction model FLIGHT SIMULATION Multi-body dynamics PARACHUTE
中小功率拖拉机提升机构快速挂钩设计与仿真 预览
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作者 黄小明 孟婧 《现代农业装备》 2019年第5期35-39,共5页
现有的中小功率拖拉机提升机构上拉杆、下拉杆的悬挂点是一种装有球头的鱼眼接头。农机具挂载时,需人力将机具摆放正位,对准拖拉机三点悬挂,并调校机具安装吊耳孔对准提升杆鱼眼接头的球头孔,然后穿入销轴固定连接,所以安装配套农机具... 现有的中小功率拖拉机提升机构上拉杆、下拉杆的悬挂点是一种装有球头的鱼眼接头。农机具挂载时,需人力将机具摆放正位,对准拖拉机三点悬挂,并调校机具安装吊耳孔对准提升杆鱼眼接头的球头孔,然后穿入销轴固定连接,所以安装配套农机具时相对费时费力。因此,设计一种适用于中小功率拖拉机提升机构的快速挂钩,对快速挂钩的结构进行优化设计,对结构关键部位强度进行受力分析,并基于SolidWorks simulation进行模拟仿真,根据仿真结果对勾手结构进行优化设计。 展开更多
关键词 快速挂钩 提升机构 拖拉机 SIMULATION 结构优化
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Computational Simulation of Sodium Doublet Line Intensities in Multibubble Sonoluminescence
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作者 梁金福 安宇 陈伟中 《中国物理快报:英文版》 CSCD 2019年第10期123-126,共4页
We perform a computational simulation of the fluid dynamics of sodium doublet(Na-D)line emissions from one sonoluminescing bubble among the cavitation bubbles in argon-saturated Na hydroxide(NaOH)aqueous solutions.Our... We perform a computational simulation of the fluid dynamics of sodium doublet(Na-D)line emissions from one sonoluminescing bubble among the cavitation bubbles in argon-saturated Na hydroxide(NaOH)aqueous solutions.Our simulation includes the distributions of acoustic pressures and the dynamics of cavitation bubbles by numerically solving the cavitation dynamic equation and bubble-pulsation equation.The simulation results demonstrate that when the maximum temperature inside a luminescing bubble is relatively low,two emission peaks from excited Na are prominent within the emission spectra,at wavelengths of 589.0 and 589.6 nm.As the maximum temperature of the bubble increases,the two peaks merge into one peak and the full width at half maximum of this peak increases.These calculations match with the observations of Na-D line emissions from MBSL occurring in aqueous solutions of NaOH under an argon gas. 展开更多
关键词 SIMULATION COMPUTATIONAL SIMULATION Multibubble SONOLUMINESCENCE
基于SolidWorks Simulation的水泵动力学分析 预览
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作者 薛晓珍 《机械管理开发》 2019年第7期68-70,100共4页
对于某型高压大流量水泵项目的最终设计校核工作,利用SolidWorks搭建模水泵模型。模拟实际工况为模型添加约束及载荷,通过Motion插件对水泵进行了运动特性分析,然后将主要受力部件如滑块、连杆、曲轴的Motion仿真结果输入到Simulation中... 对于某型高压大流量水泵项目的最终设计校核工作,利用SolidWorks搭建模水泵模型。模拟实际工况为模型添加约束及载荷,通过Motion插件对水泵进行了运动特性分析,然后将主要受力部件如滑块、连杆、曲轴的Motion仿真结果输入到Simulation中,选取一个周期的算例进行有限元动力特性分析,得到水泵工作时主要受力零部件的实际工作情况下的运行、受力以及变形情况,校核了材料的可靠性。通过本次仿真可以直观地看到水泵各零部件的运动情况及受力情况,为该水泵的最终试制提供可靠的依据。 展开更多
关键词 水泵 MOTION SIMULATION 动力学 校核
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基于Simulation的电机制动器失效分析与优化 预览
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作者 开亚骏 王保糖 党进 《现代制造技术与装备》 2019年第3期145-146,148共3页
现有制动器经过多次制动后,容易产生失效问题。针对上述问题,运用有限元法,对制动器失效原因进行分析,得出制动器失效原因,并根据具体原因,对现有制动器进行优化设计。最后,运用Simulation进行仿真验证,仿真结果表明优化后的制动器满足... 现有制动器经过多次制动后,容易产生失效问题。针对上述问题,运用有限元法,对制动器失效原因进行分析,得出制动器失效原因,并根据具体原因,对现有制动器进行优化设计。最后,运用Simulation进行仿真验证,仿真结果表明优化后的制动器满足制动要求。 展开更多
关键词 制动器失效 SIMULATION 有限元
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仿真数据管理系统研究综述 预览
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作者 关俊涛 游冰 贺提胜 《新技术新工艺》 2019年第1期11-14,共4页
随着仿真技术的不断发展和深入应用,仿真分析呈现出多学科、复杂化的发展趋势。面对海量的仿真数据和复杂的数据分析过程,越来越有必要建设仿真数据管理系统。首先介绍了仿真数据管理系统的定义、基本功能和架构,随后详细综述了仿真数... 随着仿真技术的不断发展和深入应用,仿真分析呈现出多学科、复杂化的发展趋势。面对海量的仿真数据和复杂的数据分析过程,越来越有必要建设仿真数据管理系统。首先介绍了仿真数据管理系统的定义、基本功能和架构,随后详细综述了仿真数据管理系统涉及的各项关键技术及其发展现状,接着指出仿真数据管理系统未来的研究方向和发展趋势,最后对仿真数据管理系统的研究进行了总结和展望。 展开更多
关键词 仿真 流程管理 工具集成 仿真数据管理 大数据 云平台
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Reliability simulation and analysis of phased-mission system with multiple states 预览
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作者 SU Xujun LYU Xuezhi 《系统工程与电子技术:英文版》 SCIE EI CSCD 2019年第3期624-632,共9页
Basing on discrete event simulation, a reliability simulation algorithm of the phased-mission system with multiple states is put forth. Firstly, the concepts and main characters of phasedmission system are discussed, ... Basing on discrete event simulation, a reliability simulation algorithm of the phased-mission system with multiple states is put forth. Firstly, the concepts and main characters of phasedmission system are discussed, and an active and standby redundancy (AS) tree structure method to describe the system structure of each mission phase is brought forward. Secondly, the behavior of the phased-mission system with multiple states is discussed with the theory of state chart. Thirdly, basing on the discrete event simulation concept, a simulation algorithm to estimate reliability parameters of the phased-mission system with multiple states is explored. Finally, an example is introduced and analyzed, and the analysis result verifies the algorithms. The simulation algorithm is practical and versatile, for it can model complex behavior of phased-mission system flexibly, and more reliability parameters to understand system operation can be attained. 展开更多
关键词 RELIABILITY phased-mission system DISCRETE EVENT SIMULATION SIMULATION and analysis
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考虑材料非线性的悬索桥主索鞍有限元计算方法 预览
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作者 陈远林 黄安明 陈龙 《工程建设与设计》 2019年第1期106-108,共3页
现有悬索桥主索鞍设计标准通常采用线性材料进行有限元分析,这会导致主索鞍局部应力过大,超过屈服极限,计算结果与实际工况并不相符。当应力超过屈服极限后,材料的应力.应变曲线是非线性的,采用线性材料计算不合理。此时采用非线性材料... 现有悬索桥主索鞍设计标准通常采用线性材料进行有限元分析,这会导致主索鞍局部应力过大,超过屈服极限,计算结果与实际工况并不相符。当应力超过屈服极限后,材料的应力.应变曲线是非线性的,采用线性材料计算不合理。此时采用非线性材料计算,计算结果更接近真实工况。论文运用SolidWorks有限元仿真分析模块Simulation分别按照线性和非线性材料模型对主索鞍结构进行有限元分析,为主索鞍的设计计算提供一种新方法。 展开更多
关键词 悬索桥 主索鞍 有限元 非线性材料 SIMULATION
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医学模拟中心档案管理与体系建设 预览
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作者 袁静 《中国继续医学教育》 2019年第30期1-3,共3页
随着医学模拟技术的快速发展和医学人才培养模式的变化,医学模拟教育在医学人才培养中的重要作用日益凸显。越来越多的医疗机构认识到医学模拟教育工作的重要性,新建或扩建了医学模拟中心。其中,医学模拟中心档案体系的构建和管理,反映... 随着医学模拟技术的快速发展和医学人才培养模式的变化,医学模拟教育在医学人才培养中的重要作用日益凸显。越来越多的医疗机构认识到医学模拟教育工作的重要性,新建或扩建了医学模拟中心。其中,医学模拟中心档案体系的构建和管理,反映了医学模拟中心的运营情况和医疗机构模拟教育培训质量。但在实际运营中,作为医学模拟中心一大工作要点和难点的档案建设却缺乏足够的认知和重视。本文拟从档案体系建设角度出发,对医学模拟中心档案收集、整理、保管、归档、研发利用、信息化建设等方面进行探讨,以期提高医学模拟中心运营管理水平,推动医学模拟教育培训工作开展。 展开更多
关键词 档案 模拟 培训中心 医学教育 管理 体系建设
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采用基于雷诺平均的N-S方程和势流方法进行散货船阻力和运动的预报研究 预览
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作者 Hafizul Islam Mashiur Rahaman +1 位作者 M.Rafiqul Islam Hiromichi Akimoto 《船舶与海洋工程学报:英文版》 CSCD 2019年第3期271-281,共11页
Resistance prediction of ships using computational fluid dynamics has gained popularity over the years because of its high accuracy and low cost. This paper conducts numerical estimations of the ship resistance and mo... Resistance prediction of ships using computational fluid dynamics has gained popularity over the years because of its high accuracy and low cost. This paper conducts numerical estimations of the ship resistance and motion of a Japan bulk carrier model using SHIP_Motion, a Reynolds-averaged Navier–Stokes (RaNS)-based solver, and HydroSTAR, a commercial potential flow (PF)-based solver. The RaNS solver uses an overset-structured mesh and discretizes the flow field using the finite volume method, while the PF-based solver applies the three-dimensional panel method. In the calm water test, the total drag coefficient, sinkage, and trim were predicted using the RaNS solver following mesh dependency analysis, and the results were compared with the available experimental data. Next, calm water resistance was investigated for a range of Froude numbers. The added resistance in short-wave cases was simulated using both RaNS and PF solvers, and the results were compared. The PF solver showed better agreement with the RaNS solver for predicting motion responses than for predicting added resistance. While the added resistance results could not be directly validated because of the absence of experimental data, considering the previous accuracy of the RaNS solver in added resistance prediction and general added resistance profile of similar hull forms (bulk carriers), the prediction results could be concluded to be reliable. 展开更多
关键词 COMPUTATIONAL ship HYDRODYNAMICS Japan bulk CARRIER RaNS SIMULATION Potential flow SIMULATION Total drag RESISTANCE Added RESISTANCE
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基于Simulation云图分析的新型液压缸结构设计 预览
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作者 马张懿 《机械》 2019年第10期67-72,共6页
设计了一款新型液压缸,该结构液压缸具有传动及夹紧功能,功能多样化能适用于多种液压系统需求。论文详细介绍了该液压缸的结构组成、传动与夹紧的工作原理。采用SolidWorks软件进行结构设计并建模。为了保障传动设计的可靠性,对关键零部... 设计了一款新型液压缸,该结构液压缸具有传动及夹紧功能,功能多样化能适用于多种液压系统需求。论文详细介绍了该液压缸的结构组成、传动与夹紧的工作原理。采用SolidWorks软件进行结构设计并建模。为了保障传动设计的可靠性,对关键零部件-缸筒壁厚及缸盖端部连接处螺纹进行了强度校核。为了保障夹紧操作的可靠性,通过SolidWorks Simulation云图对夹紧套的核心零部件-模板分布架及夹紧牙块进行了受力及变形仿真分析。分析结果用于指导产品样机生产和性能试验,产品被用户采用,验证了其结构设计的合理性。 展开更多
关键词 液压缸 CAD CAE SIMULATION 强度校核 结构设计
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基于Simulation的液压支架结构的优化研究 预览
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作者 徐志远 李晋虎 《机械管理开发》 2019年第9期36-37,39共3页
针对液压支架工作中出现开裂等强度失效的情况,对其进行在极限工况下的强度有限元分析,找出应力薄弱位置并提出结构优化方案,即于掩护梁箱体内增加斜置筋板及增加腹板厚度。对比分析优化前后的支架有限元分析结果,结构优化后最大应力可... 针对液压支架工作中出现开裂等强度失效的情况,对其进行在极限工况下的强度有限元分析,找出应力薄弱位置并提出结构优化方案,即于掩护梁箱体内增加斜置筋板及增加腹板厚度。对比分析优化前后的支架有限元分析结果,结构优化后最大应力可有效降幅10%,使最大应力远离材料屈服强度、液压支柱整体结构的安全性得到提升,有效保障了工作人员的生产安全和煤矿的生产效率。 展开更多
关键词 液压支架 有限元 结构优化 SIMULATION
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Numerical simulation of flow separation over a backward-facing step with high Reynolds number 预览
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作者 Fang-fang Wang Shi-qiang Wu Sen-lin Zhu 《水科学与水工程:英文版》 EI CAS CSCD 2019年第2期145-154,共10页
Large eddy simulation (LES) explicitly calculates the large-scale vortex field and parameterizes the small-scale vortices.In this study,LES and κ-ε models were developed for a specific geometrical configuration of b... Large eddy simulation (LES) explicitly calculates the large-scale vortex field and parameterizes the small-scale vortices.In this study,LES and κ-ε models were developed for a specific geometrical configuration of backward-facing step (BFS).The simulation results were validated with particle image velocimetry (PIV) measurements and direct numerical simulation (DNS).This LES simulation was carried out with a Reynolds number of 9000 in a pressurized water tunnel with an expansion ratio of 2.00.The results indicate that the LES model can reveal largescale vortex motion although with a larger grid-cell size.However,the LES model tends to overestimate the top wall separation and the Reynolds stress components for the BFS flow simulation without a sufficiently fine grid.Overall,LES is a potential tool for simulating separated flow controlled by large-scale vortices. 展开更多
关键词 Large EDDY SIMULATION κ-ε model Backward-facing step Direct numerical SIMULATION Large-scale VORTICES Particle image VELOCIMETRY
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传统侧脑室枕角穿刺方法的计算机验证与创新 预览
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作者 刘宇清 杨振杰 +3 位作者 杨智坤 黄绳跃 何炳蔚 廖正俭 《中国医学创新》 CAS 2019年第1期1-5,共5页
目的:利用计算机三维重建技术验证传统侧脑室枕角穿刺方法的成功率,并寻找更优的穿刺方向。方法:选取福建省立医院CT检查报告为侧脑室增大的成年患者102例,以其头颅三维螺旋CT的原始资料,利用计算机三维重建技术建立颅骨-侧脑室三维虚... 目的:利用计算机三维重建技术验证传统侧脑室枕角穿刺方法的成功率,并寻找更优的穿刺方向。方法:选取福建省立医院CT检查报告为侧脑室增大的成年患者102例,以其头颅三维螺旋CT的原始资料,利用计算机三维重建技术建立颅骨-侧脑室三维虚拟模型,进行侧脑室大小界定,取枕外隆凸上方6.0 cm,中线旁开3.5 cm为穿刺点,穿刺方向分别指向同侧眉心、鼻根部、眶上缘中点、眼眶外眦,并测量眉心方向上的穿刺深度。结果:利用计算机三维重建技术验证传统侧脑室枕角穿刺方法的成功率,发现穿刺方向朝向眉心成功率高于眼眶中点上缘,比较差异有统计学意义(P<0.05),平均穿刺深度为(42.79±2.80)mm。结论:采用计算机辅助模拟侧脑室枕角穿刺,证实了传统穿刺方法的成功率,并发现穿刺方向为眉心的成功率明显高于眼眶中点上缘,可为临床医师实际操作提供参考。 展开更多
关键词 侧脑室枕角穿刺 三维重建技术 虚拟模型 模拟
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Assessment of the power deposition on the MEGAPIE spallation target using the GEANT4 toolkit 预览
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作者 Abdesslam Lamrabet Abdelmajid Maghnouj +1 位作者 Jaouad Tajmouati Mohamed Bencheikh 《核技术:英文版》 SCIE CAS CSCD 2019年第4期8-14,共7页
This work aims at evaluating the reliability of the GEANT4 (GEometry ANd Tracking 4) Monte Carlo (MC) toolkit in calculating the power deposition on the Megawatt Pilot Experiment (MEGAPIE), the first liquid– metal sp... This work aims at evaluating the reliability of the GEANT4 (GEometry ANd Tracking 4) Monte Carlo (MC) toolkit in calculating the power deposition on the Megawatt Pilot Experiment (MEGAPIE), the first liquid– metal spallation target worldwide. A new choice of codes to study and optimize this target is provided. The evaluation of the GEANT4 toolkit is carried out in comparison with the MCNPX and FLUKA MC codes. The MEGAPIE is an international project led by the Paul Scherrer Institute in Switzerland. It aims to demonstrate the safe operation of an intense neutron source to power the next generation of nuclear reactors, accelerator-driven systems (ADSs). In this study, we used the GEANT4 MC toolkit to calculate the power deposited by fast protons on the MEGAPIE target. The calculation focuses on several structures and regions. The predictions of our calculations were compared and discussed with that of the MCNPX and FLUKA codes, adopted by the MEGAPIE project. The comparison shows that there is a very good agreement between our results and those of the reference codes. 展开更多
关键词 GEANT4 Simulation MEGAPIE TARGET SPALLATION Power DEPOSITION
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Quantum Monte Carlo study of the dominating pairing symmetry in doped honeycomb lattice
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作者 朱兴川 应涛 +1 位作者 郭怀明 冯世平 《中国物理B:英文版》 SCIE EI CAS CSCD 2019年第7期434-438,共5页
We perform a systematic determinant quantum Monte Carlo(DQMC) study of the dominating pairing symmetry in a doped honeycomb lattice.The Hubbard model is simulated over a full range of filling levels for both weak and ... We perform a systematic determinant quantum Monte Carlo(DQMC) study of the dominating pairing symmetry in a doped honeycomb lattice.The Hubbard model is simulated over a full range of filling levels for both weak and strong interactions.For weak couplings, the d-wave state dominates.The effective susceptibility as a function of filling shows a peak, and its position moves toward half filling as the temperature is increased, from which the optimal filling of the superconducting ground state is estimated.Although the sign problem becomes severe for strong couplings, the simulations access the lowest temperature at which the DQMC method generates reliable results.As the coupling is strengthened, the d-wave state is enhanced in the high-filling region.Our systematic DQMC results provide new insights into the superconducting pairing symmetry in the doped honeycomb lattice. 展开更多
关键词 DETERMINANT QUANTUM Monte Carlo(DQMC) simulation HONEYCOMB lattice SUPERCONDUCTING PAIRING SYMMETRY
列车管压力梯度对重载列车纵向冲动影响 预览
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作者 郑永杰 《农业装备与车辆工程》 2019年第8期13-16,46共5页
重载列车长度长、承重大,道路路况复杂、坡度大。随着不断扩编,列车制动缓解再制动时,部分车辆的列车管很难充满气,造成列车前后纵向冲动加大。为了研究列车管压力梯度对列车纵向冲动影响,基于多刚体动力学和气体流动理论,使用TABLDSS... 重载列车长度长、承重大,道路路况复杂、坡度大。随着不断扩编,列车制动缓解再制动时,部分车辆的列车管很难充满气,造成列车前后纵向冲动加大。为了研究列车管压力梯度对列车纵向冲动影响,基于多刚体动力学和气体流动理论,使用TABLDSS仿真程序建立列车纵向动力学模型和空气制动模型,计算了万吨重载列车在常用全制动时4种列车管压力梯度分布工况。结果表明,列车最大车钩力随梯度不为0的车辆数增多而增大,但对其发生车位及时间几乎没有影响,列车管压力梯度分布对制动缸升压特性和制动波速没有影响。 展开更多
关键词 重载 TABLDSS软件 仿真模拟 压力梯度 纵向冲动
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某轮盘螺栓孔处疲劳寿命预测方法与验证 预览
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作者 刘红彬 陈伟 刘林 《西北工业大学学报》 EI CAS CSCD 北大核心 2019年第4期744-750,共7页
为提高航空发动机FGH96材料涡轮盘在较高应力梯度缺口处如螺栓孔处的疲劳寿命预测精度,通过使用新的平均应力公式,同时考虑应力梯度和尺寸效应的影响,通过FGH96材料级间盘模拟试验件疲劳试验,对模型所需的寿命预测方程中的参数进行拟合... 为提高航空发动机FGH96材料涡轮盘在较高应力梯度缺口处如螺栓孔处的疲劳寿命预测精度,通过使用新的平均应力公式,同时考虑应力梯度和尺寸效应的影响,通过FGH96材料级间盘模拟试验件疲劳试验,对模型所需的寿命预测方程中的参数进行拟合,进一步开展FGH96材料涡轮盘螺栓孔模拟件疲劳试验,与预测结果进行了比较,结果表明,改进后的疲劳构件寿命预测方法具有较高的精度,证明了该方法的有效性。 展开更多
关键词 FGH96 涡轮盘 螺栓孔 平均应力 参数拟合 寿命预测 疲劳试验 模拟
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