35 Result(s)
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Article
Novel modular quasi-zero stiffness vibration isolator with high linearity and integrated fluid dam**
Passive vibration isolation systems have been widely applied due to their low power consumption and high reliability. Nevertheless, the design of vibration isolators is usually limited by the narrow space of i...
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Article
A novel bio-inspired kangaroo leg structure for low-frequency vibration isolation
Inspired by the vibration mitigation effect of kangaroo’s legs, a novel bio-inspired kangaroo leg structure (BKLS) is proposed for low-frequency vibration isolation. The BKLS is composed of two main rods with ...
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Article
Cold extrusion of a shaped charge liner preform with hyperboloid structure: simulation and experiment
In this work, a novel five-step cold extrusion forging technology was proposed for fabricating a shaped charge liner with hyperboloid structure feature, in which three steps forming to develop the macroscopic ...
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Article
Open AccessEffects of Electric and Magnetic Treatments on Microstructures of Solid Metals: A Review
An external electric or magnetic field can transfer high-intensity energy directly to the electronic scale of materials, and change the spin, energy level arrangement and trajectory of electrons. These changes...
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Article
Investigation of electromagnetic punching process with adjustable collision velocity for ultra-thin titanium sheet
Electromagnetic punching (EMP) is a new type of high-speed punching technology. In the existing EMP method, the blank has no initial loading velocity, so the punching force can only be increased by boosting th...
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Article
Seismic behavior of high-rise reinforced concrete walls with flange subjected to corrosion under low cyclic loading: an experimental research and numerical model
As a result of chloride ion erosion, corrosion of steel bars in coastal or deicing salt environments deteriorates reinforced concrete’s (RC) structural performance. At present, there were few studies involving...
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Article
Adaptive method for phase-field fracture using a volume weighted Quickselect algorithm
The phase-field fracture method (PFM) requires an extremely fine mesh to accurately capture the crack topology, which is computationally expensive. In this work, a new adaptive mesh refinement method is propos...
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Article
Application of RSM in optimization of bi-layered X-type tube hydroforming
In this study, the hydroforming process parameters of a bi-layered X-type tube are designed and optimized by exploring the response surface methodology. First, UG software is used for model setup of the bi-lay...
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Article
Relation between drying shrinkage behavior and the microstructure of metakaolin-based geopolymer
The drying shrinkage of geopolymers poses significant limitations on their potential as constructive materials. In this study, the drying shrinkage of metakaolin-based geopolymer (MKG) with different initial w...
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Article
Heat transfer characteristics of single-ring closed PHP
In order to solve the problem of heat dissipation in the current industry, a single ring closed pulsating heat pipe (PHP) was simulated in this paper. Firstly, the geometry model and numerical simulation model...
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Article
Open AccessMulti-Branch Cable Harness Layout Design Based on Genetic Algorithm with Probabilistic Roadmap Method
Current studies on cable harness layouts have mainly focused on cable harness route planning. However, the topological structure of a cable harness is also extremely complex, and the branch structure of the ca...
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Article
The existence and uniqueness of the solutions of the nonlinear on–off switched systems with switching at variable times
In this paper, by introducing the definition of the solution, we prove the existence and uniqueness of the solution for nonlinear on–off switched systems with switching at variable times (NVTSS). Based on this...
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Article
A computationally efficient approach for predicting toughness enhancement in ceramic composites with tailored inclusion arrangements
Advanced manufacturing techniques such as extrusion-based methods have enabled the fabrication of ceramic composites with ordered inclusion phases (i.e. the size and position of the inclusion can be precisely ...
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Article
A stitching method of radial section line of scanned point cloud data for ring forgings
The dimensions of ring forgings can be analyzed by the point cloud data of ring forgings scanned by laser. The dimensions are the key to evaluating the parameters of ring forgings. Due to the limitation of the...
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Article
Stability of turning process with a distributed cutting force model
Chatter is investigated for a single degree of freedom model of turning process, where the tool is simplified into a cantilever beam, and the modal parameters of the tool can be obtained from the theory of con...
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Article
Distributed adaptive event-triggered control for attitude synchronization of multiple spacecraft
This paper investigates the problem of attitude synchronization tracking of multiple spacecraft in the presence of limited inter-spacecraft communication, model uncertainties and external disturbances. A distr...
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Article
Synthesis of single-phase Au nanorods in an anodic aluminum oxide template with an optimized process for a highly sensitive and non-enzyme methyl mercaptan gas detector
Single-phase Au nanorods were synthesized using an anodic alumina oxide (AAO) template for methyl mercaptan (CH3SH) gas detection. The Au nanorods were fabricated by pulse electrodeposition on a H2O2 modified tem...
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Article
Comprehensive prediction method for die-roll height of fine-blanking components
This study proposes an economic and effective approach for predicting the die-roll height of fine-blanking components by fully considering the effect of three types of parameters: geometric features of compone...
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Article
The closed-form motion equation of redundant actuation parallel robot with joint friction: an application of the Udwadia–Kalaba approach
The closed-form motion equation of the redundant actuation parallel robot with joint friction is established by an extended application of the Udwadia–Kalaba modeling. Based on the cascading nature of the Udwa...
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Article
The study of improving the strip flatness in run-out-table during laminar cooling
The heat transfer mechanism during laminar cooling before the down coiler of the run-out-table (ROT) process is a metallurgical key for maintaining the quality of the steel strip. Large variation of the temper...
