共查询到20条相似文献,搜索用时 156 毫秒
1.
制定合理的零件定位策略对车门制造环节起关键作用,直接影响车门零件的测量结果及焊接质量。文章以某车型前门定位为例,列举了两种不同的定位方式,通过优劣对比,结合自身制造需求,选取最优定位方式,降低问题分析的复杂程度,加快问题关闭时间,最大限度地缩短项目开发周期。 相似文献
2.
制定合理的零件定位策略对车门制造环节起关键作用,直接影响车门零件的测量结果及焊接质量。文章以某车型前门定位为例,列举了两种不同的定位方式,通过优劣对比,结合自身制造需求,选取最优定位方式,降低问题分析的复杂程度,加快问题关闭时间,最大限度地缩短项目开发周期。 相似文献
3.
4.
本文通过实验对低温环境下汽车车门无法正常关闭的问题原因进行分析,并通过分析棘爪间隙摩擦、回位簧扭力自己油脂阻尼阻力,提出相应的优化设计方案. 相似文献
5.
6.
7.
8.
从常规的意义上来讲,汽车的电动尾门具体是指汽车的后备箱部分,通过遥控或者其他的物理操作方式进行关闭或者打开的操作行为。此项自动化技术在目前汽车的生产和制造中是一种比较常见的应用技术,这种技术为车主提供了便利,方便车主对汽车后备箱进行关闭或打开的操作。但是,目前部分汽车尾门关闭时尾扣位置在压缩和位移,导致连接缝闭合等方面存在一定的问题。这就使得部分汽车的尾门系统在打开和关闭时不够流畅,亟须改进。文章将从汽车的电动尾门关闭和打开的技术系统内进行研究,全面地分析电动汽车尾门的操作问题,从技术层面上提出改进这一问题的实施方案和方法。 相似文献
9.
10.
11.
以四川省为例,将定性分析与定量分析结合起来,综合运用相关性分析、回归分析、因子分析等方法,对反映四川省物流发展水平的各项指标与四川省GDP产值之间的关系作了简单的探讨。 相似文献
12.
哈佛分析框架从战略角度出发,多角度对企业的运行状况和经营成果进行系统性的分析,将定性与定量分析相结合,弥补了传统财务分析的局限性。选取顺丰控股为研究对象,基于哈佛分析框架,以顺丰控股2017-2019年的财务报表为基础,从战略、会计、财务以及前景四个角度对顺丰控股进行综合的财务分析,并提出相关的建议以供参考。 相似文献
13.
文章利用声卡作为数据采集设备,用数据分析和处理功能非常强大的工程实用软件Labview作为软件开发平台,设计了一个低成本、高性能的数据采集与分析系统。实现了数据采集、信号分析(时域分析和频域分析)及信号发生等多种功能。 相似文献
14.
ABSTRACT Understanding the developmental trajectories of big data analytics in the corporate context is highly relevant for information systems research and practice. This study presents a comprehensive bibliometric analysis of applications of big data analytics in enterprises. The sample for this study contained a total of 1727 articles from the Scopus database. The sample was analyzed with techniques such as bibliographic coupling, citation analysis, co-word analysis, and co-authorship analysis. Findings from the co-citation analysis identified four major thematic areas in the extant literature. The evolution of these thematic areas was documented with dynamic co-citation analysis. 相似文献
15.
针对当前挖掘机动臂结构有限元分析方法中人工操作强度大、建模效率低等问题,研究基于Pro/TOOLKIT、APDL命令流和ANSYS的Batch工作模式的自动化动臂结构有限元分析运行机制,建立自动化动臂结构有限元分析系统体系结构,提出相应的有限元分析工作流程。结合具有双动臂液压缸的鹅颈式动臂结构,开发人机界面友好的自动化动臂结构有限元分析软件,验证自动化有限元分析方法的可行性及其在提高批量动臂结构有限元分析效率方面的有效性。 相似文献
16.
现代公司治理结构对不同的利益相关者提出了不同的财务管理目标,利益相关者通过财务分析对公司治理作出评价。本文通过探讨公司治理与财务分析的相关性,提出基于公司治理优化财务分析体系,使财务分析体系能更好的反映公司治理。 相似文献
17.
Interorganizational cooperation in some high-tech industries is no longer confined to two-company alliances, but entails industry-wide alliance networks. This article examines how industry analysis and network analysis can be combined to provide a thorough understanding of how network positions, and the overall network structure, may play a part in cooperative strategies. Industry analysis can indicate which properties of the network structure and network positions are congruent with the firms' cooperative strategies, but tells us little about how these network characteristics can be measured. Network analysis provides such measures, which can then be used as feedback in the industry analysis. The article illustrates this approach by comparing the alliance networks associated with the DRAM and RISC microprocessor technologies. 相似文献
18.
This paper proposes a scientific model to explain the analysis process. We argue that data analysis is primarily a procedure to build understanding, and as such, it dovetails with the cognitive processes of the human mind. Data analysis tasks closely resemble the cognitive process known as sensemaking. We demonstrate how data analysis is a sensemaking task adapted to use quantitative data. This identification highlights a universal structure within data analysis activities and provides a foundation for a theory of data analysis. The competing tensions of cognitive compatibility and scientific rigour create a series of problems that characterise the data analysis process. These problems form a useful organising model for the data analysis task while allowing methods to remain flexible and situation dependent. The insights of this model are especially helpful for consultants, applied statisticians and teachers of data analysis. 相似文献
19.
本文对机床结合面特性进行了简单分析,重点对机床结构有限元动态分析的基本理论和有限动力学软件和模型进行了分析研究。 相似文献
20.
In-depth data analysis plus statistical modeling can produce inferentialcausal models. Their creation thus combines aspects of analysis by close inspection,that is, reason analysis and cross-tabular analysis, with statistical analysis procedures,especially those that are special cases of the generalized linear model (McCullaghand Nelder, 1989; Agresti, 1996; Lindsey, 1997). This paper explores some of the roots of this combined method and suggests some new directions. An exercise clarifies some limitations of classic reason analysis by showing how the cross tabulation of variables with controls for test factors may produce better inferences. Then, given the cross tabulation of several variables, by explicating Coleman effect parameters, logistic regressions, and Poisson log-linear models, it shows how generalized linear models provide appropriate measures of effects and tests of statistical significance. Finally, to address a weakness of reason analysis, a case-control design is proposed and an example is developed. 相似文献