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Feature Extraction Method Based on Pseudo-Wigner-Ville distribution for Rotational Machinery in Variable Operating Conditions
feature extraction pseudo-wigner-ville distribution
2011/8/4
In the case of fault diagnosis for roller bearings, the conventional diagnosis approaches by using the time interval of energy impacts in time-frequency distribution or the pass-frequencies are based ...
Feature Extraction Method Based on Pseudo-Wigner-Ville distribution for Rotational Machinery in Variable Operating Conditions
feature extraction pseudo-wigner-ville distribution variable operating condition
2011/8/4
In the case of fault diagnosis for roller bearings, the conventional diagnosis approaches by using the time interval of energy impacts in time-frequency distribution or the pass-frequencies are based ...
Discrete Stress-Strength Interference Model of Reliability Analysis Under Multi-operating Conditions
reliability model stress strength multi-operating conditions
2011/8/3
The conventional stress-strength interference (SSI) model is a basic model for reliability analysis of mechanical components. In this model, the component reliability is defined as the probability of ...
Effect of Processing Variables and Enzymatic Activity on Wheat Flour Dough Extruded Under Different Operating Conditions
amylase enzymes extrusion protease wheat flour
2010/3/24
Low processing temperatures are required to improve the texture of products when enzymes are directly added to the extruder. Interaction among processing variables and enzymatic activity can occur dur...
电动助力转向系统全工况建模及试验验证（Modeling and Verifying of EPS at All Operating Conditions）
电动助力转向 全工况 仿真
2009/11/3
为克服以往车辆电动助力转向（EPS）模型的不足，结合简化的原地转向轮胎模型和基于Doguff轮胎模型的七自由度整车模型，建立了转向系统转向及回正时的力学模型。为得到车辆的转向力矩和回正性能特性，对无助力转向全工况（原地及行驶条件下）转向操纵转矩和回正的转向盘残留转角进行仿真，试验结果表明所设计的模型可以准确描述转向操纵转矩和回正特性。进而设计了基于滑模变结构电动助力转向控制策略进行助力和回正控制，...