在完整的灵活模型下,独特的电子元件故障时间和圆形管的产量强度的探索方法
Riffat Jabeen1, Mashhood Ahmad1, Azam Zaka2
1Department of Statistics, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.
PloS one
|October 14, 2024
概括
使用灵活的模型开发了新的指数加权移动平均线 (EWMA) 控制图表. 带有加权最小平方估计器的EWMA图表在统计过程控制中显示出卓越的性能.
科学领域:
- 统计过程控制 统计过程控制
- 质量管理质量管理.
- 可靠性工程可靠性工程
背景情况:
- 对于复杂的数据分布,传统的控制图可能缺乏灵活性.
- 库马拉斯瓦米帕雷托分布提供了一个灵活的建模方法.
- 开发先进的控制图表对于现代质量控制至关重要.
研究的目的:
- 引入新的指数加权移动平均线 (EWMA) 控制图.
- 为了使用最小平方 (LS) 和加权最小平方 (WLS) 估计器来计算库马拉斯瓦米帕雷托分布的形状参数.
- 为了比较拟议的EWMA控制图表的性能.
主要方法:
- 使用LS和WLS估计器开发EWMA控制图表.
- 通过数值模拟和图形表示进行比较性能分析.
- 使用两个真实世界的数据集进行验证.
主要成果:
- 基于WLS估计器的EWMA控制图表与基于LS的图表相比,表现优越.
- 模拟研究和真实数据分析证实了拟议图表的有效性.
- 图形和3D图形分析为图表表现提供了洞察力.
结论:
- 拟议的EWMA控制图与WLS估计器提供了增强的统计过程控制.
- 该方法可以扩展到其他概率分布.
- 建议对质量管理中的更广泛应用进行进一步的研究.
更多相关视频
09:26In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices
Published on: June 26, 2015
8.7K
07:15A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens
Published on: June 2, 2017
9.2K
相关概念视频
Yield Criteria for Ductile Materials under Plane Stress
153
In designing structural elements and machine parts using ductile materials, it is crucial to ensure that these components withstand applied stresses without yielding. Yielding is initially determined through a tensile test, which evaluates the material's response to uniaxial stress. However, tensile stress is insufficient when components face biaxial or plane stress conditions This condition requires advanced criteria to predict failure.
The Maximum Shearing Stress Criterion, also known as...
The Maximum Shearing Stress Criterion, also known as...
153
Stresses under Combined Loadings
146
When analyzing a bent tube with a circular cross-section subjected to multiple forces, it is crucial to determine the stress distribution in order to maintain structural integrity under varied load conditions.
The process begins by slicing the tube at critical points and analyzing the internal forces and stress components at these sections, focusing on the centroid. Normal stresses, generated by axial forces and bending moments, are either compressive or tensile and vary across the section from...
The process begins by slicing the tube at critical points and analyzing the internal forces and stress components at these sections, focusing on the centroid. Normal stresses, generated by axial forces and bending moments, are either compressive or tensile and vary across the section from...
146
Plastic Deformation in Circular Shafts
181
When materials are subjected to forces that surpass their yield strength, they undergo a process known as plastic deformation. This results in a permanent alteration or strain in their structure. This concept can be specifically applied to circular shafts, where the deformation leads to a change in its shape. The precise evaluation of this plastic deformation requires understanding the stress distribution within the circular shaft, which is achieved by calculating the maximum shearing stress in...
181
Stress-Strain Diagram - Ductile Materials
643
The stress-strain relationship in ductile materials such as structural steel or aluminium is intricate and progresses through several stages. When a specimen is loaded, it initially exhibits a linear length increase, depicted by a steep straight line on the stress-strain diagram. It indicates the material is elastically deforming and will return to its original shape once unloaded. However, when a critical stress value is reached, plastic deformation begins. This stage sees substantial...
643
Bending of Material: Problem Solving
173
In this lesson, determine the ratio of the maximum bending moments applied to two metal pipes, given that both pipes can withstand a maximum stress of 100 MPa. Both pipes have an outer radius of 1.8 cm. Pipe A has an inner radius of 1.5 cm, and Pipe B has an inner radius of 1 cm. The ratio of the maximum bending moment applied to two metallic pipes, each with a different inner and outer radius, is determined by considering their dimensions. The inner radius of the first pipe is 1.5 cm, and for...
173
Fatigue
174
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
174
