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41
Model-Based Optimization of a Sliding Vane Rotary Pump for Micro-Organic Rankine Cycle
Published 2024-12-01Subjects: Get full text
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42
Nonlinear Transmission Optimization Design of the Mechanical Aircraft Engine Control System
Published 2024-03-01“…Based on the characteristic of the mechanical aircraft engine control system, the four-bar mechanism is substituted by the five-bar mechanism to realize nonlinear transmission. The mechanism design parameters are divided into optimization decision parameters and transmission control parameters by analyzing the principle of five-bar mechanism design parameters, the mechanism solving method and optimization design method are built to directly solve the mechanism design parameters and make the transmission characteristic fulfill the constraint condition precisely. …”
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43
Design of Compliant Constant-force Mechanism based on Additional Spring Double-slider Four-bar Mechanism
Published 2020-04-01“…A design method of compliant gripper based on pseudo rigid body model is presented.A compliant clamping mechanism with constant force characteristics is constructed based on the additional spring double-slide four-bar mechanism.The mechanism position analysis model is established and the kinematic statics equation is constructed by using the principle of virtual work.The influence of spring stiffness on the output characteristics of the mechanism is analyzed,and a compliant clamping mechanism design method with constant force characteristics is obtained.Based on the pseudo rigid body model,the additional spring is replaced by a flexible module to obtain a new type of compliant constant force mechanism.The feasibility of establishing compliant constant force mechanism is verified by finite element analysis software.Finally,a new type of compliant constant force gripper with a symmetrical structure is constructed.The design method of the compliant constant force gripper can also be applied to the non-linear stiffness characteristic compliant mechanism design included other types of additional spring mechanisms.…”
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44
Parameterized Modeling of Geneva Mechanism in Modular
Published 2015-01-01“…After analyzing the current design shortcomings of Geneva mechanism,a method of Parameterized modeling for Geneva Mechanism in modular is proposed by Pro/E/layout.The method is simple,convenient and visual.It could realize fast modeling and fast reconstructing of Geneva mechanism.It provides an advice to Geneva mechanism and other mechanism design.…”
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45
Analytic of the Ball Worm Transmission
Published 2015-01-01“…The performance index to improve the transmission efficiency is discussed,the application prospect of the a new design in mechanical transmission field-ball worm pair with the rolling balls as meshing tooth is analyzed and compared on the technical.The transmission principle of the mechanism is analyzed,and the basic formula of the mechanism design calculation is proposed,and it is showed through the design example for this kind of ball worm pair.…”
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46
Design Space and Performance Atlas of a New Type Shaper Mechanism
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47
Survey of DDoS defense:challenges and directions
Published 2017-10-01“…The distributed denial of server (DDoS) attack is a major threat to the Internet.Numerous works have been proposed to deal with this problem through attack detection and defense mechanism design.A survey was presented to introduce the DDoS defense technologies,from the traditional strategies,through Cloud-based systems,toward SDN-based mechanisms.According to the characteristics of DDoS attack,the features and drawbacks of these systems were discussed,which could provide new insights for the development of the new generation of network security framework in the future.…”
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48
Formal verification and implementation of safety computer communication management mechanism
Published 2016-11-01“…The verification and test results show that the management mechanism design meets the design requirements, the management unit can achieve the expected state transfer function.…”
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49
Research of Modeling and Motion Simulation of Globoidal Indexing Cam based on Transformation of Homogeneous Coordinate
Published 2018-01-01“…The 3 D modeling and motion simulation of the globoidal indexing cam mechanism are set up in Pro/E. The mechanism design and motion simulation verification example shows that the designed globoidal indexing cam mechanism satisfied the indexing expectation.…”
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50
Kinematics Simulation Analysis of Six-legged Upright Walking Robot based on Adams
Published 2020-08-01“…The results show that, walking leg mechanism can meet to working requirements of six-legged walking mechanism, design scheme is feasible. The theoretical basis for the next dynamics analysis and optimization design is provided.…”
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51
Design and Kinematics Analysis of the Three-configuration Old Helper Metamorphic Mechanism based on Graph Theory
Published 2021-04-01“…The analysis results show that, the displacement curve changes greatly when the support period transitions to the swing period, and the speed and acceleration change greatly within the last 40% of the gait cycle, which is in line with the law of human gait, indicating that the old helper mechanism design is reasonable.…”
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52
Research on incentive mechanism for mobile intelligent edge computing
Published 2019-06-01“…As a new architecture,mobile edge computing gives edge users stronger capabilities of computing,storage and communication,but it needs reasonable incentives mechanism to motivate edge users to provide resources.In terms of the three typical scenarios of mobile intelligent edge computing:computation offloading,edge caching and data collection,the incentive mechanism in the above scenarios was studied at first,then the core scientific problems were proposed that need to be solved in the incentive mechanism design of mobile intelligent edge computing from three perspectives of service quality,network quality and data quality.Finally,the technical challenges in the process of solving the above problems were analysed deeply and the corresponding feasible solutions were given.…”
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53
Design and Analysis of Linear Connecting Rod Climbing Mechanism
Published 2021-03-01“…The design research of linear connecting rod climb mechanism is carried out, the endpoint trajectory upper part as the semicircle, the approximate linear the lower part of the string, the trajectory and animal walking gait extremely similar, so use it as a climbing mechanism design basis, and by using the SolidWorks software climb straight connecting rod mechanism modeling, and during the process of climbing stairs trajectory of climbing mechanism is analyzed. …”
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54
Structural Design and Kinematics Analysis of an Adjustable Swing Foot Rehabilitation Robot
Published 2021-01-01“…The kinematics simulation of virtual prototype is carried out by using SolidWorks software, and the comparison between the theoretical data and the simulation data of transmission ratio confirms the accuracy of theoretical analysis and safety of mechanism design. Finally, the key parameters of swing adjustment are analyzed.…”
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55
Research and Motion Analysis of Cutting Blade Mechanism of Copper Foil Shearing Machine
Published 2015-01-01“…It is always a problem to improve the quality of copper foil shearing in PCB production.In order to research and develop copper foil shearing machine which has international competitiveness,taking the shearing mechanism of copper foil shearing machine designed by Rosenthal company in US as study object,the mechanism principle of shearing mechanism is descriped and the degree of freedom of mechanism is calculated.The motion analysis of shearing mechanism is carried out based on the methods of spatial mechanism kinematics and numerical calculation.Then,the analytic parameter formula of shearing mechanism cut point is deduced.The motion feature of shearing mechanism based on high speed and high cutting quality is proposed through the numerical experimentation and simulation experiment of shearing machine with 1500 copper foil breadth.The movement curve and controllable parameter which affects the performance of mechanism are obtained.The research contents can be taken as reference for the optimization of cutting blade mechanism design parameters.…”
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56
A Portable Piezoelectric Tactile Terminal for Braille Readers
Published 2012-01-01“…In particular, this paper presents a piezoelectric ultrasonic actuation approach to design and implement such portable Braille terminal. Actuating mechanism, design concept, first prototype, and performance results are presented and discussed.…”
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57
Blockchain address risk behavior identification algorithm based on neural differential equations
Published 2024-10-01“…At the same time, a gate mechanism was introduced to filter out the impact of neighboring node addresses on the central node. The gate mechanism design incorporated the strength of transaction correlation between node addresses. …”
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58
Innovative Design of the Carbon-free Car Fine-tuning Mechanism based on the Trajectory Analysis Method
Published 2015-01-01“…Through physical prototype testing,good results is achieved by fine- tuning program in the trajectory modification,a new way of thinking for carbon- free car fine- tuning mechanism design is provided.…”
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Application of Involute in the Cut Pile Mechanism of Carpet Tufting Machine
Published 2016-01-01“…The results show that the mechanism design of the new cut pile mechanism is reasonable. it can satisfy the technological requirements of cutting pile and is much more simple and reliable than the typical cut pile mechanism.…”
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60
Current Status and Analysis of Decoupling Mechanism
Published 2022-10-01“…The decoupling of the branch-chain constraint relationship is the key of the decoupling mechanism design. The constraint relation on the spatial direction and position of the kinematic pair axis is proposed. …”
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