过盈联结过盈量的计算与修正

为保证过盈联结的工作可靠性，确定过盈联结的过盈量除了考虑所传递的载荷以外，还应考虑其他条件因素对过盈的影响，以合理计算联结过盈，在满足联结件材料强度的前提下，提高过盈联结的可靠性。     

过盈联结的可靠性设计

根据可靠性设计理论，推导出了过盈联结强度的可靠性设计和计算的通用公式．对有可靠性要求、大尺寸及一些重要的过盈联结建立了可行的设计方法，为提高联结的强度和可靠性提供了有效途径．     

过盈联结传递扭矩的可靠性

根据可靠性设计理论，建立了过盈联结传递扭矩的可靠性设计公式，对通过过盈联结传递载荷的一些重要联提供了新的设计方法，为提高传递载荷的可靠性提供了新的途径。     

过盈联结传递扭矩的可靠性

根据可靠性设计理论，建立了过盈联结传递扭矩的可靠性设计公式，对通过过盈联结传递载荷的一些重要联结提供了新的设计方法．为提高传递载荷的可靠性提供了新的途径．     

形状误差对过盈联结承载能力的影响分析

根据过盈联结传递力与力矩的原理，分析了过盈联结件存在的形状误差对配合过盈数值、接触压力、给全面摩擦系数以及承载能力的影响，并给出了形状误差影响联结面接触压力的实验结果，结果表明：减小联结件的形状误差，可较大减小接触压力的相对误差，从而提高摩擦系数的计算精度．根据数理统计原理及公差配合理论．提出了在有形状误差的条件下．确定过盈量和联结表面接触压力的实用计算方法，为保证结合面摩擦系数的准确性，提高过盈联结承载能力和可靠性提供了有利条件，对于解决工程中大量的过盈联结问题具有实际意义．     

VC轧辊过盈力及过盈量的计算及影响分析

支撑辊液压胀形作为VC轧机独有的辊型调控手段，是控制负载辊缝与板形质量最有效的方法之一。同时，因为VC辊液压胀形作用的存在，过盈力和过盈量的定量计算成为VC轧辊设计和校核的关键。为此，首先通过分析VC轧辊套筒和芯轴热装之后的受力与变形情况，提出了原始过盈量和原始过盈力的计算方法。然后，考虑VC轧辊套筒和芯轴受力对轧辊挠度的影响，根据套筒和芯轴在轧制过程中的变形几何关系，确定了VC轧辊套筒和芯轴的变形协调方程，并结合轧制过程中力平衡与力矩平衡方程，建立了VC轧辊实际过盈力和实际过盈量分布的计算模型。最后，利用国内某VC轧机的轧辊结构参数和实际生产过程中的典型规格带钢工艺参数，定量计算并分析了带钢轧制过程中过盈力和过盈量的分布。进一步在极限油压50 MPa范围内选取9.8、19.6、29.4、39.2、49.0 MPa 5种油压，计算并分析了不同油压对过盈力分布的影响。结果表明，过盈力和过盈量分布的主要影响因素是轧制力和油压，且油压对过盈力和过盈量的影响大于轧制力的影响；油压的升高有效降低了过盈力，且油压的变化对距离油腔边部越近的部位影响越大，反之则影响越小。VC轧辊过盈力及过盈量计算模型...     

V形辊道的过盈配合设计及有限元模拟

运用圆柱面过盈联结的计算公式,简化设计了给定参数的V形辊道的辊身和辊轴的过盈配合。并运用有限元软件ANSYS WORKBENCH,对设计的V形辊道进行了模拟计算。模拟计算结果验证了设计的正确性。     

圆柱面过盈联接仿真与验证

工程中常用圆柱面过盈联接来传递载荷,且过盈量的大小决定了传递载荷能力的大小。运用AN-SYS接触分析模块能有效地对该联接形式进行仿真分析,并运用相关理论证实其仿真结果的正确性。该仿真接触分析法同样适用于其它不同类型的过盈面联接型式。     

过盈热装齿轮拆卸方法

分析了过盈热装齿轮拆卸中存在的问题,根据热胀冷缩原理,提出了过盈热装齿轮拆卸措施。     

快速铸轧机铸轧辊的辊芯与辊套圆锥配合的设计

提出在铸轧辊的辊芯与辊套用新铸轧辊结构圆锥过盈配合代替常规的圆柱过盈联结,从制造工艺性和工程应用方面对其可行性进行研究,在满足铸轧中所需的最小结合力,又能使其工作时的应力水平满足辊套使用寿命的要求的过盈范围内,通过调节辊套与辊芯轴向的相对位置,来调整实际过盈量的大小。经分析计算,此新结构制造工艺性好,过盈调整拆卸方便。     

微机控制系统抗干扰软件设计初探

分析了干扰对微机控制系统的影响及其严重后果，提出从软件设计着手，采用软硬件设计相结合的方法，合理地解决抗干扰问题，提高系统运行的可靠性。     

湘钢650轧机万向联轴节过盈联接松动分析与改进

针对湘钢捧材厂生产过程中出现的650轧机万向联轴节过盈联接松动重大设备隐患，从理论及实践角度进行了系统的分析，找出了过盈联接松动的原因，提出了具体、有效和经济的最佳解决方案。结果表明，改进后效果良好，满足了生产的需要。     

PLC控制系统的电磁干扰及抗干扰措施

通过对PLC控制系统常见干扰源的分析,结合工程实践,阐述了解决抗电磁干扰的技术,具体从电源、电缆敷设、滤波、接地系统等方面论述了设计原理与方法,提高了控制系统的可靠性。     

Is there semantic interference in delayed naming?

The semantic interference effect in the picture–word interference task is interpreted as an index of lexical competition in prominent speech production models. Janssen, Schirm, Mahon, and Caramazza (2008) challenged this interpretation on the basis of experiments with a novel version of this task, which introduced a task-switching component. Participants either named the picture or read the word, depending on the word's color. Janssen et al. reported semantic interference in picture naming, regardless of whether the word appeared simultaneously with the picture (immediate naming) or 1,000 ms after the picture (delayed naming). Because picture name retrieval is completed in less than 1,000 ms, the finding in delayed naming was taken as evidence against the lexical competition account. In 3 sets of experiments conducted in German and English, we tested for semantic effects in Janssen et al.'s task-switching version and in the standard picture–word interference task. Using identical materials, we obtained sizeable interference effects in the standard task (Experiments 2, 4, and 6) but no effects in the task-switching version (Experiments 1, 3, and 5). When the word reading trials of the task-switching version were replaced with no-go trials (Experiment 7), semantic interference reemerged in immediate naming but was still absent in delayed naming. The experiments question the reliability of Janssen et al.'s critical finding and suggest that theoretical inferences about the origin of semantic effects in the standard picture–word interference task based on results from the task-switching version used by Janssen et al. are difficult to draw. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Semantic interference in a delayed naming task: Evidence for the response exclusion hypothesis.

In 2 experiments participants named pictures of common objects with superimposed distractor words. In one naming condition, the pictures and words were presented simultaneously on every trial, and participants produced the target response immediately. In the other naming condition, the presentation of the picture preceded the presentation of the distractor by 1,000 ms, and participants delayed production of their naming response until distractor word presentation. Within each naming condition, the distractor words were either semantic category coordinates of the target pictures or unrelated. Orthogonal to this manipulation of semantic relatedness, the frequency of the pictures' names was manipulated. The authors observed semantic interference effects in both the immediate and delayed naming conditions but a frequency effect only in the immediate naming condition. These data indicate that semantic interference can be observed when target picture naming latencies do not reflect the bottleneck at the level of lexical selection. In the context of other findings from the picture-word interference paradigm, the authors interpret these data as supporting the view that the semantic interference effect arises at a postlexical level of processing. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Delaying interference enhances memory consolidation in amnesic patients.

Some patients with amnesia are able to retain new information for much longer than expected when the time that follows new learning is devoid of further stimuli. Animal work shows that the absence or delaying of interference improves long-term memory consolidation. Our study suggests that this is also true for at least some patients with amnesia. Retention of new verbal material was significantly higher in a sample of patients with amnesia (N = 12) when interference occurred at the end of a 9-min delay interval than when it occurred in the middle or at the beginning of the interval. Such findings cannot be accounted for by the mere use of explicit short-term memory rehearsal. Any such rehearsal should have been blocked by the interference, irrespective of interference onset, thus leading to poor retention in all three conditions. The current findings suggest that at least some of the severe forgetting observed in amnesia is the product of a disruption of memory consolidation by immediate postlearning interference. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

PLC信号的干扰及预防措施

PLC在冶金行业工业控制中的应用非常广泛。PLC控制系统的可靠性直接影响到企业的安全生产和经济运行,系统的稳定性和抗干扰能力是关系到整个系统可靠运行的关键。自动化系统中所使用的各种类型PLC,有的是集中安装在控制室,有的是安装在生产现场,它们大多处于非常恶劣的工业生产环境和电磁环境中,因此提高PLC控制系统的抗电磁干扰能力是非常重要的。文章结合工程调试经验,分析了PLC系统的干扰源,并提出了一些增强PLC系统抗干扰能力的措施。