نتایج جستجو برای: clamping force
تعداد نتایج: 192948 فیلتر نتایج به سال:
To repress the growing regional/national identity, the motherland country applies Rationalism strategies including economic incentive and military threat. Analysis of Taiwan National Security Survey in 2003-2015 shows that China’s carrot and stick policies negatively correlates with exclusive Taiwanese identity, but the effects, not perceptions, decline among the young generations.
In this paper an automatic bionic mechanical arm of jujube transplanter has been designed and simulated with Pro/E and ADAMS software. The device can achieve the work of clamping—sending—setting the sapling and support the sapling to guarantee it perpendicularity in setting process. Design the structure of manipulator utilizing the simulation of hand working. There is 5-DOF at the manipulator t...
Laterally driven linear electrostatic micromotors have been fabricated by standard surface micromachining. We attempt to employ mechanical leverage with the aim to increase the force from the order of 1 μN up to the order of 0.1 mN, in combination with walking motion to increase the stroke to virtually unlimited. Three designs have been made and tested. We conclude that mechanical levers with p...
Machines such as robotic grippers use powerful actuators or gearboxes to exert large loads at the expense of energy consumption, volume, and mass. We propose a stepless force amplification mechanism that assists clamping by pair permanent magnets, in which external control required adjust their distance, thus output force, is suppressed compensation springs. For further sophistication, we inven...
An analytical model for predicting the deflection and force of a bimaterialcantilever is presented. We introduce the clamping effect characterised by an axial loadupon temperature changes. This new approach predicts a non linear thermal dependence ofcantilever strain. A profilometry technique was used to measure the thermal strain.Comparison with experimental results is used to verify the model...
We investigate the degree of control that can be exercised over an optically trapped microscopic non-spherical force probe. By position clamping translational and rotational modes in different ways, we are able to dramatically improve the position resolution of our probe with no reduction in sensitivity. We also demonstrate control over rotational-translational coupling, and exhibit a mechanism...
Genetic algorithm (GA) is proven to be a useful technique in solving optimization problems in engineering. Fixture design has a large solution space and requires a search tool to find the best design. Few researchers have used the GAs for fixture design and fixture layout problems. Either separately (Kulankara et al 2002) or along with FEM, GA has been used for fixture layout and clamping force...
BACKGROUND Many women consider mammography painful. Existing studies on pain-preventing strategies only mention pain scores reported before and after breast compression. Studying the pain dynamics during the entire compression cycle may provide new insights for effective pain-preventing strategies. METHODS This observational study included 117 women who consented to use a custom turning knob ...
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