scholarly journals Gear tooth breakage analysis based on multi-order modulated sideband RMS trending method

2021 ◽  
Vol 2113 (1) ◽  
pp. 012007
Author(s):  
Jian'gang Chen ◽  
Zhi Luo ◽  
Ronggen Wu ◽  
Haiyang Cai
Keyword(s):  
Trend Analysis ◽  
Gear Tooth ◽  
Development Trend ◽  
Development Stage ◽  
Analysis Method ◽  
Signal Energy ◽  
Gear Fault ◽  
Characteristic Signal ◽  
The Development Trend ◽  
Fault Characteristic

Abstract The fault characteristic signal energy for early gear tooth breakage is relatively weak and easily drowned by other signals, which is not conducive to the study of the fault development stage. A multi-order modulated sideband RMS (Root Mean Square) trend analysis method is proposed to analyse the development trend of the broken gear fault characteristics. By using this method to analyse gear breakage faults, the multi-order modulated sideband RMS trend analysis method can effectively determine the fault deterioration and fault stabilisation stages.

scholarly journals Analysis of energy consumption status and development trend of cold chain logistics

2021 ◽  
Vol 269 ◽  
pp. 01017
Author(s):  
Wei Tang ◽  
Junfeng Li
Keyword(s):  
Energy Consumption ◽  
Evaluation Model ◽  
Strong Support ◽  
Development Trend ◽  
Cold Chain ◽  
Analysis Method ◽  
Different Dimensions ◽  
The Development Trend ◽  
New Industry ◽  
Benchmark Evaluation

As a new industry, cold chain logistics has attracted much attention. Under the strong support of national policies, the development of cold chain logistics has entered the fast lane. This study takes the energy consumption of cold chain logistics as the research object, uses the the energy consumption benchmark evaluation model of regression analysis to present the current situation of energy consumption of cold chain logistics from different dimensions, puts forward the contradictions and problems existing in the current development based on the SWOT (strengths, weaknesses, opportunities and threats) analysis method. Finally, the development trend of cold chain logistics energy consumption is predicted and relevant suggestions are put forward. The purpose of this paper is to find out the rule of effect of each factor on energy consumption in cold chain logistics, and to provide the direction for energy-saving measures in production.

scholarly journals Trend Analysis of Pakistan Railways Based on Industry Life Cycle Theory

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Xuemei Li ◽  
Khalid Mehmood Alam ◽  
Shitong Wang
Keyword(s):  
Life Cycle ◽  
Trend Analysis ◽  
Principal Component ◽  
Development Trend ◽  
Industry Life Cycle ◽  
Life Cycle Theory ◽  
Political Interference ◽  
Railway Industry ◽  
Industrial Life Cycle ◽  
The Development Trend

The core purpose of this paper was to analyze the trend analysis of Pakistan railways from the year 1950 to 2015, using the principal component analysis method and industrial life cycle theory. Industrial life cycle theory, the development trend analysis of Pakistan railway industry, entails four stages: introduction, growth, maturity, and decline. The results indicated that railway industry in Pakistan was at its pinnacle in the middle of the seventies and thereafter the decline of railway industry was observed. The main reasons behind the decline were underinvestment, political interference, and the rise of the same-sector competitor, the National Logistics Cell (NLC). From the year 2011, it experienced an upward trend of combined utility curve and showed a new round of industry life cycle. To revive its previous glory, the current government has proposed a development document for Pakistan railways, Vision 2025. It is envisaged that railways share in transportation will be increased from current 4% to 20% by the year 2025, which seems to be an onerous challenge for the organization.

Development Prospect of Chinese Photovoltaic Industry with Scenario Analysis

2014 ◽  
Vol 672-674 ◽  
pp. 38-43
Author(s):  
Lei Pan ◽  
Li Xian Xing
Keyword(s):  
Scenario Analysis ◽  
Development Trend ◽  
Development Prospect ◽  
Situational Analysis ◽  
Analysis Method ◽  
Market Policy ◽  
Development Scenarios ◽  
Single Field ◽  
The Impact ◽  
The Development Trend

Currently most researches on photovoltaic are for a single field such as market, policy and technology. This paper with scenario analysis method, considers the impact of various factors to build a variety of possible development scenarios. It forecasts the development trend of Chinese photovoltaic industry with situational analysis. And it raises suggestions of resolution for the different scenarios.

scholarly journals Exploring the Focus of Enterprise Informatization During Digital Transformation

2021 ◽  
Vol 251 ◽  
pp. 03070
Author(s):  
Lin-Yu GuQian
Keyword(s):  
Manufacturing Industry ◽  
Integrated Management ◽  
Development Trend ◽  
Development Stage ◽  
Digital Transformation ◽  
Management Model ◽  
Value System ◽  
Enterprise Informatization ◽  
New Industrialization ◽  
The Development Trend

As an irreversible trend in nowadays manufacturing industry, digital transformation has put higher demands on enterprise’s informatization. This paper reviewed how the focus changed for enterprise informatization in the manufacturing industry during each development stage, summarized the development trend for informatization in the industry, and put forward the three focuses of enterprise informatization during digital transformation. In a new historical stage, enterprises should focus their efforts on the following aspects: integrating informatization with lean management to optimize the value system as much as possible; building an integrated management model to achieve overarching control on informatization; realizing in-depth integration of informatization and industrialization to follow a path to new industrialization.

Wavelet Selection in Fault Diagnosis of Wavelet Transform

2012 ◽  
Vol 591-593 ◽  
pp. 2127-2130 ◽  
Author(s):  
Shu’e Li ◽  
Feng Lv ◽  
Chao Fu
Keyword(s):  
Fault Diagnosis ◽  
Wavelet Analysis ◽  
Fault Analysis ◽  
Analysis Method ◽  
Singularity Detection ◽  
Time Frequency ◽  
Stator Current ◽  
Characteristic Signal ◽  
Wavelet Selection ◽  
Fault Characteristic

Wavelet analysis is a kind of time-frequency analysis method, It is particularly effective to analyze signal singularity, singular point location and size of the singular degree, fault characteristic signal can be effectively separated, and it can be used to make fault analysis and diagnosis. And choosing different wavelet analysis on fault make different results. Based on the induction motor stator current for the simulation model, the paper discusses the signal with different wavelet denoising, except the singularity detection and fault diagnosis. And analyzes the importance of fault mother wavelet choicing.

Recent Patents on Vision Technology-Based Devices

2021 ◽  
Vol 14 ◽  
Author(s):  
Hongxin Zhang ◽  
Meng Li ◽  
Hanghang Jiang ◽  
Shaowei Ma
Keyword(s):  
Machine Vision ◽  
Structural Characteristics ◽  
External Environment ◽  
Development Trend ◽  
Development Stage ◽  
Current Development ◽  
Engineering Applications ◽  
Advantages And Disadvantages ◽  
Pros And Cons ◽  
The Development Trend

Background: In VTBDs (Vision Technology-Based Devices), vision technology is utilized to acquire abundant information about the external environment and process such information to achieve certain functions. They are used in various fields to solve practical problems. Various patents have been discussed in this article, hoping to provide ideas for solving practical problems in the future. Objective: The study aimed to provide an overview of the existing VTBDs and introduce their classifications, characteristics, as well as the stage and trend of development. Methods: This paper reviews various patents, especially Chinese patents related to VTBDs. The structural characteristics, differentiation, and engineering applications of VTBDs are also introduced. Results: The existing VTBDs are analyzed and compared, and their typical characteristics are summarized. The main applications, as well as the pros and cons, in the current development stage, are summarized and analyzed, as well. In addition, the development trend of VTBDs-related patents is also discussed. Conclusion: VTBDs can be categorized into DsBMV (Devices Based on Monocular Visual), DsBBV (Devices Based on Binocular Visual), and DsBMCV (Devices Based on Multi-Camera Visual). All of these categories exhibit their own relative advantages and disadvantages. Therefore, it is of much importance to analyze the specific problems, followed by selecting appropriate machine vision technologies and reasonable mechanical structures to design VTBDs accordingly.

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