Results 71 to 80 of about 11,864 (263)

Modelling, design and analysis of offset, non-orthogonal and profile-shifted face gear drives

Advances in Mechanical Engineering, 2018
This article proposes the application of a profile-shifted grinding disc to generate an offset, non-orthogonal and profile-shifted face gear. A detailed investigation of the modelling, tooth geometry and contact characteristics of the offset, non ...
Xuezhong Fu, Zongde Fang, Yanmei Cui, Xiangying Hou, Jianhua Li   +4 more
doaj   +1 more source

Reconfigurable Design and Optimization‐Based Control of an Integrated Leg‐Arm Robot for Space Applications With an Underactuated Body

Advanced Intelligent Systems, EarlyView.
A quadrupedal integrated leg‐arm robot with an underactuated reconfigurable body is developed. By using a Sarrus mechanism as the body, the robot enables reconfiguration through its supporting limbs, achieving mode switching without additional actuators.
Xinghan Zhuang, Kun Xu, Shutao Wu, Haoyuan Liu, Bochao Song, Jiawei Chen, Peijin Zi, Tao Zhang, Xilun Ding   +8 more
wiley   +1 more source

SIMPLIFIED CALCULATION OF MESHING STRENGTH OF FACE GEAR PAIR (MT)

Jixie qiangdu, 2023
In order to facilitate the selection of basic parameters in the initial design stage of face gear, and simplify the process of solving meshing strength of face gear pair. By referring to the existing strength calculation formula of the standard spur gear,
HE Fei, QIAN WeiXiang, FU XueZhong, PENG XianLong   +3 more
doaj  

Analysis of composite motion law and force of high speed curve-face gear

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
A new type of curve-face gear pair - high speed curve-face gear pair is proposed. It combines the high speed cam motion law and the curve-face gear transmission, and can transmit rotation/axial motion and power between intersecting axis.
Chao LIN, Yongquan YU, Yanan HU
doaj   +1 more source

Contact Force Estimation in Human–Robot Collaboration: A Case Study on Heavyweight Robotic Manipulators

Advanced Intelligent Systems, EarlyView.
The method presented in this paper provides a practical sensorless solution for estimating both contact force and contact location using only standard joint encoders and an available robot dynamic model. By reformulating the contact estimation problem using a single scalar equivalent contact parameter, the approach enables fast and robust computation ...
Thanh‐Quan Ta, Shyh‐Leh Chen
wiley   +1 more source

Tooth Surface Design and Visualization of Non-orthogonal Arc Tooth Face Gear

Jixie chuandong, 2020
A new type of non-orthogonal arc tooth face-gear is designed. The arc tooth cylindrical gear is used as an imaginary tool to envelop the working tooth surface and transition surface of the face gear. The mathematical model of the face-gear is obtained in
Feng Zhanrong, Chen Yong, Sheng Wei, Wang Lixia, Wang Wenxuan, Zhao Yulong   +5 more
doaj  

Characterization and Selection of Contractile Actuators for Soft Robotics Operating in the Quasistatic Regime

Advanced Intelligent Systems, EarlyView.
We developed methods to characterize soft contractile actuators using force–displacement measurements in the passive state and the total force in the active state and define the operational range of thermal, electrothermal, and pneumatic muscles. A graphical method enables the selection of an actuator based on the required mechanical force–displacement
Qiong Wang, Liuyang Cheng, Jeongmin Kim, Samuel Tsai, Devin Roach, Sameh Tawfick   +5 more
wiley   +1 more source

Balancing Exploration and Exploitation Through a Sequential Hybrid of Roach Infestation and Mayfly Algorithms for Constrained Engineering Design Optimization

AI &Innovation, EarlyView.
ABSTRACT Maintaining an effective balance between exploration and exploitation is essential during optimization processes, from mathematical functions to more complex problems such as constrained engineering design optimization, particularly when addressing highly nonlinear issues with numerous local optima and strict feasibility requirements.
Enrique Lizárraga, Fevrier Valdez, Oscar Castillo, Patricia Melin   +3 more
wiley   +1 more source

Study of low-noise face gear drives associated with micro-punch webs

Advances in Mechanical Engineering, 2016
Face gear dynamics is addressed by many scholars. However, design solutions of low-noise face gear drives without gear tooth modifications are not to be constructed.
Zhengminqing Li, Hongshang Chen, Rupeng Zhu   +2 more
doaj   +1 more source

The rain feels different under the same umbrella: Experiences with poverty across LGBTQ subgroups

American Journal of Community Psychology, EarlyView.
Abstract Population‐based survey data have demonstrated that LGBTQ communities report varying rates of economic insecurity, yet very little research directly assesses how pathways into and experiences with poverty look different among subgroups at the intersections of sexual orientation and gender identity (SOGI).
Bianca D. M. Wilson, Lillian Nguyen
wiley   +1 more source