Results 11 to 20 of about 1,799,144 (293)

Tangential mechanical properties analysis of cylindric elastoplastic contact model

open access: yesAdvances in Mechanical Engineering, 2022
An elastoplastic contact model of two cylinders is proposed in this paper. The crossing angle of two cylinders axes is introduced into the contact model.
Tieneng Guo   +4 more
doaj   +1 more source

Simulation Study on Single-Lip Deep Hole Drilling Using Design of Experiments

open access: yesJournal of Manufacturing and Materials Processing, 2021
Single-lip deep hole drilling (SLD) is characterized by a high surface quality and compressive residual stress in the subsurface of the drill hole.
Daniel Fandiño   +4 more
doaj   +1 more source

Automated soil hardness testing machine [PDF]

open access: yes, 2007
This paper describes the design and performance of a mechatronic system for controlling a standard drop-hammer mechanism that is commonly used in performing outdoor soil or ground hardness tests. A low-cost microcontroller is used to control a hydraulic
Cubero, Samuel N.   +1 more
core   +2 more sources

Biaxial Testing Machine: Development and Evaluation

open access: yesMachines, 2020
Biaxial mechanical testing gained increased importance for characterization of materials that present anisotropic behavior and/or different responses when subjected to tensile and compression loadings.
António B. Pereira   +3 more
doaj   +1 more source

Finite element study of displacement controlled fretting in cylinder contact with different axis crossing angles

open access: yesAdvances in Mechanical Engineering, 2022
There is inevitably an angular offset during contact of mechanical structures such as roller bearings or gears. Most of the previous contact models involve the contact between two parallel cylinders.
Tieneng Guo, Ruguo Ji, Yunfei Ma
doaj   +1 more source

Testing Identifiable Kernel P Systems Using an X-machine Approach [PDF]

open access: yes, 2018
This paper presents a testing approach for kernel P systems (kP systems), based on the X-machine testing framework and the concept of cover automaton.
C Câmpeanu   +17 more
core   +1 more source

Adaptive testing of a deterministic implementation against a nondeterministic finite state machine [PDF]

open access: yes, 1998
A number of authors have looked at the problem of deriving a checking experiment from a nondeterministic finite state machine that models the required behaviour of a system.
Hierons, RM
core   +2 more sources

Development of comprehensive performance testing technology for motorized spindle

open access: yesAdvances in Mechanical Engineering, 2018
The comprehensive performance test of motorized spindle will contribute to improve the machining quality of machine tool. But existing standards for testing the performance of motorized spindle are limited to test its partial static and dynamic ...
Junwen Wang   +5 more
doaj   +1 more source

Testing in the distributed test architecture: An extended abstract [PDF]

open access: yes, 2008
Some systems interact with their environment at a number of physically distributed interfaces/ports and when testing such a system it is normal to place a local tester at each port.
Hierons, RM
core   +1 more source

Research on the dynamic hammering method for identifying weak parts in cantilever structures

open access: yesScience Progress, 2021
Identification of the vulnerabilities in the structural stiffness is one of the most crucial issues in improving this property of machine tools. In this paper, the Flexibility Matrix Diagonal element method, based on hammer testing, is proposed as an ...
Tieneng Guo   +3 more
doaj   +1 more source

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