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Numerical Analysis of a Spiralgroove Drygas Seal Considering Microscale Effects
numerical analysis Reynolds equation
2011/8/4
A drygas seal system is a noncontact seal technology that is widely used in different industrial applications. Spiralgroove drygas seal utilizes fluid dynamic pressure effects to realize the seal and ...
非线性裂纹转子密封混沌系统自适应控制（Adaptive Control of Nonlinear Cracked Rotor Seal Chaotic System）
裂纹转子 气流激振 混沌系统
2009/8/11
应用Muszynska非线性密封力模型，建立了在气流激振力作用下的裂纹转子系统耦合动力学方程。根据自适应控制理论，给出一种多重参数自适应控制算法。利用此方法对裂纹转子密封系统进行了研究，研究结果表明，所提出的参数自适应控制律具有较强的稳定控制能力，该方法适合于多重参数非自治复杂混沌系统，在外界干扰下引起混沌状态的情况，可自适应地调整到正常的工作状态。
Ultra-High Vacuum Seal for Stratospheric Sampler
Ultra-High Vacuum Seal Stratospheric Sampler
2009/7/30
Ultra-High Vacuum Seal for Stratospheric Sampler.
Equivalent grain size method Importance of top seal evaluation for exploration
equivalent grain size method top seal capacity capillary pressure
2009/4/24
“Equivalent grain size (EGS) method” is a unique approach to represent the top seal capacity in terms of the ideal grain size. Theoretical consideration of the capillary seals suggests that the capil...
Recent exploration and development in the Gulf of Thailand oil and gas fields—Investigation of field developing technology and application of fault seal analysis
Gulf of Thailand Miocene fluvial sandstones 3D seismic
2009/4/7
In the Gulf of Thailand oil- and gasfields, natural gas exploration proceeded in the 1970s and commercial gas sourced from Miocene coal beds (Unit 3) came on stream in 1981. In the 1990s, crude oil f...
Petroleum system analysis—New knowledge from seal evaluation
3D basin simulation hydrocarbon migration modeling seal buoyancy
2009/4/2
In geologic time scale, flow of secondary migration of hydrocarbon is controlled by capillary (resistive) and buoyancy (driving) forces. The relationship between capillary threshold pressure of form...
Design and development of seal components fatigue tester
Numerical techniques Rapid prototyping Engineering design
2010/2/4
Purpose: The aim of the paper is research and development concerning a fatigue tester of shock absorber seal systems.
Design/methodology/approach: Analytical approach has been applied to get an under...
Temperature control strategy for a seal fatigue tester
Numerical techniques Rapid prototyping Engineering design
2010/2/4
Practical implications: The major component of the tester is the heat exchanger. It consists of a tube and embedded pipe circuit feeding with the external heating or cooling medium. The tube is a cyli...
An Image Identification System of Seal with Fingerprint Based on CMOS Image Sensor
CMOS image sensor USB2.0 interface Image identification system MCU
2011/12/12
CMOS image sensors now become increasingly competitive with respect to their CCD counterparts, while adding advantages such as no blooming, simpler driving requirements and the potential of on-chip in...