Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 11

Year

2023 3

2019 1

2016 1

2011 1

2008 1

2006 1

2004 1

2003 1

2001 1

open ︾

Keywords

difficult-to-cut material 2

Mallat algorithm 1

Meyer wavelet transform 1

Rehbinder effect 1

TGP 1

TRIZ 1

WC 1

aerosol concentration 1

aerospace 1

biolubricant 1

complex surface 1

complicated 1

control 1

counter lightning interference 1

cryogenic minimum quantity lubrication energy field-assisted milling 1

design theory 1

dielectrics 1

difficult 1

difficult function unit 1

difficult problems 1

open ︾

Search scope:

排序： Display mode:

Major Difficult Problems in the Construction of the Three Gorges Project

Wang Jiazhu

Strategic Study of CAE 2003, Volume 5, Issue 8, Pages 16-22

Abstract:

As the largest in the world by far,the Three Gorges Project (TGP )is a multipurpose development and comprehensive utilization project that can bring a huge benefit by combining flood control, electric prowler generation and shipping. It is of large scale and technically complex. This paper expounds a large number of major technical problems that has been,and will be, solved in the construction of the project, and points out that the solution of these problems will be an important urge to the development of both water conservancy and hydraulic power generation science and technology.

Keywords： TGP science and technology difficult problems

HTML PDF Collect

Energy field-assisted high-speed dry milling green machining technology for difficult-to-machine metal

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0744-9

Abstract: Energy field-assisted machining technology has the potential to overcome the limitations of machining difficult-to-machineHowever, the lack of necessary cooling and lubrication in high-speed dry milling makes it difficult tomeet the continuous milling requirements for difficult-to-machine metal materials.In this review, the characteristics and limitations of high-speed dry milling of difficult-to-machinedetail, providing feasible ideas for realizing multi-energy field collaborative green machining of difficult-to-machine

Keywords： difficult-to-machine metal material green machining high-speed dry milling laser energy field-assisted

HTML PDF Collect

Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine

Jagdeep SINGH,Rajiv Kumar SHARMA

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4, Pages 374-387 doi: 10.1007/s11465-016-0388-8

Abstract: Electrical discharge machining (EDM) is a well-known nontraditional manufacturing process to machine the difficult-to-machine

Keywords： WC hazard and operability analysis (HAZOP) discharging aerosol concentration dielectrics powders

HTML PDF Collect

Study on the Nonlinear Characteristics of Cutting Forces in High-speed Face-milling of Difficult-to-cut

Long Zhenhai,Wang Xibin,Wang Haochen

Strategic Study of CAE 2004, Volume 6, Issue 10, Pages 28-31

Abstract:

Factorials experiment and velocity single-factor experiment are applied in the dry high-speed milling experiments of Martensitic stainless steel 2Crl3, which is used in aerospace industry. Based on the analysis of cutting regimes, influences on milling force, the spectrum analysis and wavelet analysis are applied on the random cutting force signals. This study shows that in high speed milling of Martensitic stainless process, the interaction of depth of cut and feed per tooth has significant effect on the cutting force; the interaction of feed per tooth and depth of cut introduces a lower frequency periodic signal; this low frequency signal coupled with high frequency signal could remarkably increase the amplitude of cutting force signals.

Keywords： difficult-to-cut materials high speed machining factorials design Meyer wavelet transform Mallat algorithm

HTML PDF Collect

The Technical Scheme and Key Equipment for Solving the Difficult Technical Problems of Underground Radio

Situ Mengtian

Strategic Study of CAE 2001, Volume 3, Issue 7, Pages 64-69

Abstract:

Two difficult tedhnical problems in underground radio communications, i.e. weak signal reception and

Keywords： underground radio communications weak signal reception counter lightning interference

HTML PDF Collect

Comparative assessment of force, temperature, and wheel wear in sustainable grinding aerospace alloy using biolubricant

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0719-x

Abstract: However, serious tool wear and workpiece damage in difficult-to-machine material grinding challenges

Keywords： grinding aerospace difficult-to-machine material biolubricant physicochemical property grindability

HTML PDF Collect

A review of low-temperature plasma-assisted machining: from mechanism to application

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0734-y

Abstract: , we describe the effects of the low-temperature plasma on different machining processes of various difficult-to-cut

Keywords： low-temperature plasma difficult-to-cut material machinability hydrophilization effect Rehbinder

HTML PDF Collect

Avoiding barriers in control of mowing robot

QIU Bai-jing, QIAN Guo-hong, XIANG Zhong-ping, LI Zuo-peng

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3, Pages 346-349 doi: 10.1007/s11465-006-0032-0

Abstract: Due to complicated barriers, it is difficult to track the path of the mowing robot and to avoid barriers

Keywords： control distance-measuring problem complicated difficult

HTML PDF Collect

Function-geometry integrated precision machining methodsand technologies for high performance workpieces

Guo Dongming

Strategic Study of CAE 2011, Volume 13, Issue 10, Pages 47-57

Abstract: performance parts often have complex surfaces and ultra-high machining accuracy, and consequently use difficult-to-cutperformance has complex coupled effect with many factors such as part geometry and material, it is rather difficult

Keywords： high performance function-geometry integration precision machining difficult-to-cut material complex

HTML PDF Collect

Technical Status, Challenges, and Solutions of Maritime Bridge Engineering

Gao Zongyu, Ruan Huaisheng, Qin Shunquan, Ma Runping, Mei Dapeng

Strategic Study of CAE 2019, Volume 21, Issue 3, Pages 1-4 doi: 10.15302/J-SSCAE-2019.03.016

Abstract:

According to the future construction demands of deep-water sea-crossing bridge engineering, the research status of structure and design theory is analyzed. It is proposed that technical challenges faced by sea-crossing bridge engineering are mainly four aspects: strong wind wave, strong corrosion, super water depth and super large span. The sea-crossing bridge engineering development attaches great importance to theoretical research on environmental effects and combinations, structural durability, fatigue resistance and life-time design, and focuses on breakthroughs in key technical bottlenecks such as super-long span bridge schemes, ultra-deep water infrastructure forms and rapid construction of new structural forms. It is suggested to establish the national sea-crossing bridge engineering technology research center, strengthen the investment in science and technology hardware, cultivate innovative talents, and improve the science and technology reward mechanism.

Keywords： marine bridge engineering design theory structural form key and difficult problems technical development

HTML PDF Collect

Study on the process model of an original innovation

Tan Runhua,Ma Jianhong,Chen Zishun,Jiang Ping

Strategic Study of CAE 2008, Volume 10, Issue 11, Pages 52-58

Abstract: The difficult function unit and method of effect synthesizing are defined and then a type of new processoriginal innovation is built and it begins from the needs forecasting to the effect synthesizing of difficult

Keywords： TRIZ law of needs evolution original innovation difficult function unit method of effect synthesizing