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Recent work in the FPGA acceleration of molecular dynamics simulation has shown that including on-the-fly neighbor list calculation (particle filtering) in the device has the potential for an 80× per core speed-up over the CPU-based reference code and so to make the approach competitive with other computing technologies. In this paper we report on progress and challenges in advancing this work towards...
A robotic wiring harness assembly system, basing on vision and force/torque sensors, is developed to realize mating of electric connectors. In this system, cameras are firstly used to detect the position and the pose of a grasped connector, and then the corresponding bias is calculated roughly to guarantee the connector can be contacted with the other opposite part. After that, a force/torque sensor...
This study, which examined five healthy young male subjects, was intended to evaluate wheelchair adaptability based on physical and mental loads. Joint torque and muscle energy consumption of the upper limbs were used as indexes of the physical load. Salivary α-amylase activity (sAMY) was used as an index of the physical and mental loads. To examine the influence of the driving resistance and wheelchair...
When a human manipulates an object with a power assist robot, the human feels a scaled-down effect of the load and the forces required to manipulate the object also reduce. We determined in our previous research that the power assist robot reduces the weight of the lifted object to 40% of its actual weight. However, the root cause of reduced heaviness of objects manipulated with power assist robots...
There are strong implications that Amyloid beta (Aβ) peptide causes neurotoxicity in Alzheimer's disease (AD) through (i) pore formation, (ii) the disruption of ionic channels that could affect calcium homeostasis, and (iii) receptor binding. The actual mechanism(s) remains unclear. In this study, we utilised cell-sized model membranes to observe the stability of lipid vesicles, in real-time, in the...
Humans frequently need to lower heavy objects for various purposes. We assume that suitable human-robot systems such as power assist systems may be comfortably used to lower heavy objects/materials. However, most of the currently available power assist devices are designed for rehabilitation and health care purposes, and hence the development of suitable power assist devices for lowering heavy objects...
The safety of navigation of ro-ro passenger ships has been perplexing the shipping circles, while the problem of vehicle safe stowing and securing is an important factor that affects the safe transportation of ro-ro passenger ships. Some specifications are put forward in home and abroad on the research of safe stowing and securing of vehicle on board ro-ro passenger ships. However, it is lacking in...
Giant structural building relocation is a complex dynamic process while the current study to the project was restricted to a specific project and most of the theoretical researches were focused to the rolling way to realize the relocation. The object of this paper is to formulate the model of frame structure building movement by sliding way and to obtain the force in building elements under the different...
This paper presents an analysis of the accuracy of urban railway train's parking together with an elaboration of the system structure and principle of parking control in ATO mode. Through the construction of the model of pneumatic brake unit, the non-linear character of pneumatic brake unit is analyzed, and thereby the strategy of feedback control based on the train's position signal is given. Further...
On the basis of three-dimensional finite element modeling method, a cutting model is built in accordant with the real working environment. In the simulation, some results including the temperature distribution, cutting force variable and stress field were obtained. The simulation result can help to improve and optimize the parameters of the real turning process, to reduce costly and time consuming...
This is an important means to support the sustainable development for government to implement services out-sourcing of e-government. Based on the analysis of the status quo about the procuratorate's information system, combined with the procuratorate's information characteristics currently and three operation maintainance methods, the article focuses on the construction of services out-sourcing management...
Chongqing Chaotianmen Yangtze River Bridge with the main span of 552m is an urban bridge of double deck bridges for highway and rail, which need to verify fatigue security performance of the node on bottom chord . Through the calculation of the full bridge's space finite element, the node for study is determined as the M29 and calculate and calculate the internal force influence line of M29. Load...
Now the state norms of the bridge falsework have not yet been promulgated, and falsework design theory is seriously inadequate, which make it hard to guarantee the stability of bridge falsework and results in a series of bridge falsework collapse accidents in recent years. Based on the test of overall stability of the bridge falsework, AHP is used to give scoring weight to effect factors-the scoring...
This paper introduced a three degree-of-freedom planar parallel mechanism which is composed of three branches. In order to give directions for the following engineering design of the mechanism, the inverse kinematics and forward kinematics of this parallel mechanism are analyzed, which shows that analytical equations for the inverse and forward kinematics of the novel parallel mechanism can be obtained...
This article takes the two-stage screw type solar array which has multi-deployment and lock function as a study object, and simplifies the joint hinge as rotation vice according to the transmission order of multi-deployment and lock joint hinge. Based on the kinematics characteristic analysis of solar array's deployment and the Kane dynamic equation, the dynamics analysis model of solar array's deployment...
The main aim of this paper is to design a hybrid force-position controller using fuzzy logic (FL) for the robotic arm of a 9 degrees of freedom (DOF) upper limb wearable exoskeleton rehabilitation robot. The robot is designed and built in our lab for assisting in the rehabilitation of patients post-stroke. The robotic arm of the rehabilitation robot is driven by pneumatic muscles (PM) and its dynamic...
A new vertical peristaltic micro-feed actuator using piezoelectric stack as actuating element was designed in this paper. The clamping and driving of the mover are integrated through the piezoelectric stack and the flexible hinge structure. The mover crawls on the two tracks set by the two stators. The structure was simulated using ANSYS software to certify its feasibility. The result shows that the...
The mathematical models of hydraulic braking system were built through studying the braking system of the wind turbine. The AMESim software was used to establish the simulation model of hydraulic braking system and the controller model, which was employed to the coupling of the simulation, constructed in Matlab/Simulink. The designed soft braking system was tested in the wind turbine. The analysis...
An Air Bearing Strip Flatness Detector (ABSFD) , manufactured in China, was adapted to measure the strip flatness in cold rolling mills on-line. This paper presents how it works, static and dynamic characteristics, part edge strip cover roller and its transient response. It has been successfully serviced on line of 1400 aluminum foil cold rolling mill for six years, which the rolling speed is up to...
In order to solve the culvert structure large size,high cost and long construction time and culverts cracking problem and so on by the high filling culvert excessive earth pressure caused,a new load reduction test in site using different thicknesses and widths of EPS on the top and lateral slab culvert is done,The test results shows that: EPS slab can reduce vertical and lateral soil pressure acted...
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