Results 51 to 60 of about 1,081 (103)

Study on Instantaneous Mesh Stiffness of Straight Bevel Gear

Jixie chuandong, 1995
本文以三维有限元方法对多齿对同时啮合的直齿圆柱齿轮轮齿变形和刚度进行了详尽分析研究。并利用ＳＧＤＣＳ齿轮动态效应试验台进行了轮齿变形的激光测试，测试结果与计算结果的变化趋势具有稳定的一致性。该研究为齿形修整提供了依据；对齿轮动力学的其它领域，特别是进行振动及噪声分析都具有十分重要的意义。也为锥齿轮国标的制定和修改提供了参考。
李剑锋, 王钧效, 王寿祐, 艾兴, 田志仁   +4 more
doaj  

基于时变因素影响的弧齿锥齿轮副间隙动力学研究

Jixie chuandong, 2015
基于时变啮合阻尼、时变啮合刚度和静态传递误差的考虑,建立了含间隙的弧齿锥齿轮副扭转动力学模型,并采用Runge-Kutta法求解,主要分析时变啮合阻尼和齿侧间隙对系统响应的影响。计算结果表明,系统的非线性振动特性受时变啮合阻尼和间隙的影响较明显。随着阻尼系数和间隙的改变,系统振幅在一定范围内会产生较明显的波动,而且还会出现周期、拟周期和混沌运动以及分岔和跳跃现象等非线性特性。
邱桓松, 袁杰红, 李源
doaj  

[Three-dimensional finite element analysis of the cantilever fixed bridge restoration for mandibular central incisors supported by narrow-diameter implants]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Zhou X, Gong Y, Peng W, Fu G.
europepmc   +1 more source

[Application study of a novel locking anatomical plate in treatment of Neer type <b>Ⅱ</b>b and type <b>Ⅴ</b> distal clavicle fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang J, Xu D, Wu J, Pu Y.
europepmc   +1 more source

[Clinical efficacy of simple taper-retained external connection narrow-diameter implants applied in the narrow alveolar ridge of the premolar region: a 5-8-year follow-up study]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Wu H, Cao N, Cao L, Yu F, Zhang X, Wei S, Wei H, Guo S.   +7 more
europepmc   +1 more source

[Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Ling Y, Han J, Zhang Z, Peng Y, Zhang J, Chen Z, Jin Z.   +6 more
europepmc   +1 more source

[Case Report of One Family With Coffin-Lowry Syndrome and Literature Review of 28 Cases in China]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Zhu D, Yang W, Zhang L.
europepmc   +1 more source

[Clinical application and mechanistic studies of psychedelics for treatment of depression: progress and future challenges]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Xia K, Gao T.
europepmc   +1 more source

[Analysis of risk factors for early failure of simple taper retentive implants]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Zhang X, Wan Z, Wei S, Yu F, Cao N, Cao L, Wu H, Guo S, Wei H.   +8 more
europepmc   +1 more source

[Clinical symptoms and cone beam computed tomography imaging analysis of patients with temporomandibular joint osteoarthritis with chewing side preference before and after treatment of stabilization splint]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Li X, Wang J, Xu L, Xu X, Li H, Hu M, Liu H, Jiang H.   +7 more
europepmc   +1 more source