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] Fig. 2 Spatial path response under various operating conditions[52] 文献[53-54]基于亚拓600无人直升机动力学模型,设计一种改进的二阶LADRC,将TD添加到LESO中,并估计影响输出结果的干扰,在改进控制器结构与反馈补偿系数基础上,对比研究了该控制方法与模糊PID的控制效果,发现该方法的姿态角响应速度更快,稳定性更好. 无人......
Ni(OH)2 has attracted considerable attention because of its short diffusion path lengths for both electrolyte ions and electrons, favoring the diffusion and migration of electrolyte ions during......
J, ZHU S, QIU D, MCDONALD S D, EASTON M A. Solidification path and microstructure evolution of Mg-3Al-14La alloy: Implications for the Mg-rich corner of the Mg-Al-La phase diagram[J]. Journal......
, 885: 74-79. [21] MANZONI A, SINGH S, DAOUD H, POPP R, V LKL R, GLATZEL U, WANDERKA N. On the path to optimizing the Al-Co-Cr-Cu-Fe-Ni-Ti high entropy alloy family for high temperature applications[J......
is beneficial to achieving high (BH)max. However, when the deformation strain is in excess of 65%, the magnetic properties will decay considerably, resulting from the crack present in the magnets[4......
,邻近疲劳源出现腐蚀产物和氧化产物.显然,在真空中的疲劳裂纹的成核比在空气中难,而在空气中的裂纹成核又比在热腐蚀环境中的难. 图30 IN738LC合金在900 ℃疲劳断口的扫描电镜照片[28] Fig.30 SEM image of fracture showing nucleation of fatigue crack by surface ridging[28......
, diameters of fracture areas or crack extension lengths, which are uniformly defined as Af, are adopted to approximately evaluate their adhesion. Also as listed in Table 4, each the Af value is obtained......
on the bottom of the bed of the Oueme river in the area of the curve leading to crack of area and increased vulnerability of structures such as the pavement and the bridge, whose proximity to the river bed......
J. Cent. South Univ. (2020) 27: 1012-1038 DOI: https://doi.org/10.1007/s11771-020-4349-3 Recent research development of energy-absorption structure and application for railway vehicles GAO Guang-jun(高广军)1, 2, 3, ZHUO Tian-yu(卓天宇)1, 2, 3, GUAN Wei-yuan(关维元)1, 2, 3 1. Key Laboratory of Traffic Safet......
(including maintenance holes, road slope, lane width, lane number, road markings, road curbs, and road crack status). However, due to the complex and large scale of an expressway, the traditional......