Results 171 to 180 of about 61,471 (312)

Three-dimensional finite element analysis of acoustic instability of solid propellant rocket motors [PDF]

A three dimensional finite element solution of the acoustic vibration problem in a solid propellant rocket motor is presented. The solution yields the natural circular frequencies of vibration and the corresponding acoustic pressure mode shapes ...
Hackett, R. M., Juruf, R. S.
core   +1 more source

Biodegradability of Binder System Waste from Hydroxyl-Terminated Polybutadiene Propellant and Pretreatment for Biodegradation. [PDF]

Polymers (Basel)
Wu K, Chai T, Hu F, Ding Z, Wang C.
europepmc   +1 more source

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

Advanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

Flexible Three-Dimensional Stress Sensor for Embedded Monitoring of Solid Rocket Propellant. [PDF]

Micromachines (Basel)
Shi Y, Lü X, Ren K, Zhu W.
europepmc   +1 more source

Multidirectional Motion Strategy of Miniature Water Surface Robot Actuated by Single Exciter

Advanced Robotics Research, EarlyView.
A novel multidirectional motion strategy on the water surface based on a single exciter is proposed, and a single‐exciter single‐plate module is developed for actuation. The driving forces generation mechanism of the module is revealed from the perspective of the asymmetric surface wave field.
Haoxuan He, Dehong Wang, Jing Li, Shijing Zhang, Yingxiang Liu   +4 more
wiley   +1 more source

Modeling fatigue damage evolution in CMDB propellant based on dynamic modulus. [PDF]

Sci Rep
Yao L, Jinsheng X, Changsheng Z, Xiong C, Xiumin Y.   +4 more
europepmc   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

An Atomic-Level Bimetallic MOF Platform Overcoming the Stability-Performance Tradeoff for Laser Propulsion. [PDF]

Adv Mater
Rao S, Tang G, Zhang S, Cheng GJ.
europepmc   +1 more source

Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing

Advanced Robotics Research, EarlyView.
This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan, Lin Guo, Kilian Schäfer, Eduardo Sergio Oliveros‐Mata, Xiaotao Wang, Florian Hofmann, Matthias Lutzi, Mark Suppelt, Proloy Taran Das, Jan Schmidtpeter, Imants Dirba, Stephan Rinderknecht, Mario Kupnik, Denys Makarov, Oliver Gutfleisch   +14 more
wiley   +1 more source

Catalytic ignition of the [BMIM]DCA-H₂O₂ propellant with the Cu(vim)₂(DCA)₂ complex. [PDF]

RSC Adv
Zhang Y, Yao Y, Dou P, Cheng Q, Zhang Y.
europepmc   +1 more source