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Journal of Nuclear Science and Technology, 2019
Control rod hydraulic drive mechanism (CRHDM) is a newly invented patent of Tsinghua University. The hydraulic cylinder is the key part of this mechanism, so the performance of the hydraulic cylinder directly affects the CRHDM.
Qian-feng Liu, Guang Hu, H. Bo
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Control rod hydraulic drive mechanism (CRHDM) is a newly invented patent of Tsinghua University. The hydraulic cylinder is the key part of this mechanism, so the performance of the hydraulic cylinder directly affects the CRHDM.
Qian-feng Liu, Guang Hu, H. Bo
semanticscholar +1 more source
REALIZATION OF BIPED ROBOT BY HYDRAULIC DRIVE
Proceedings of the JFPS International Symposium on Fluid Power, 1989The robots realized at present, are primarily developed for automation in factory, such as industrial robots. Recently, intelligent robot with vision etc. appeared, but the object of introduction doesn't change, so much.New field of robot with more advanced functions is developing, whose object is inspection and maintenance of large plant such as ...
Masakatsu G. Fujie +4 more
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Interferometrically Controlled Hydraulic Wavelength Drive*
Journal of the Optical Society of America, 1961After a discussion of the nature and history of the wavelength drive problem, the construction and operation of an interferometrically controlled hydraulic wavelength drive is described. With servo control, the interferometer end reflector which is maintained in contact with the driven element is advanced linearly to within 0.1 fringe. The speed of the
William Benesch, George Ameer
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Pneumatic–Hydraulic Pile Driving Hammer
2020In the early fifteenth century, people used ropes to lift heavy objects for piling. Various diesel hammers and hydraulic hammers emerged as the times require. This chapter introduces a pneumatic–hydraulic pile hammer which combines pneumatic technology with hydraulic technology, including its historical origin, domestic and foreign products, basic ...
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Hydraulic Valve with Integrated Piezoelectric Drive
IFAC Proceedings Volumes, 2000Abstract In this article, an electric power amplifier, a stack actuator and a hydrostatic displacement amplifier are introduced, which control a hydraulic valve. A switching controller concept is used by the electrical amplifier. A switching period must not exceed one microsecond. The actuator works with a voltage up to 200 V.
Kasper Roland +2 more
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Multiple Hydraulic Drives Load Sensing
ASME 1977 Citrus Engineering Conference, 1977Hydraulics date back to the pyramids and Egyptians. It became popular during World War I and World War II, when it was mass produced for the military. What we will discuss today will be modern hydraulics, primarily hydraulics for the citrus industry. Paper published with permission.
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Peripheral blasting in the driving of the hydraulic tunnels
Hydrotechnical Construction, 19691. In driving tunnels and other undergound projects by the single section technique or with an upper lead section, peripheral blasting may prevent overage if the work is done without bracing or with an anchor bracing. 2. Peripheral blasting should be used, depending on the strength of rocks: with a closer spacing of charges in stable ...
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