The Added Mass and Viscous Damping of a Spar Platform …
The CFD (Computational Fluent Dynamics) method was used to calculate the added mass and the viscous damping of the Spar platform considering the semi-closed moon pool in this paper. The three-dimensional models of the platform with water inside the semi-closed moon pool were established by the VOF (Volume of Fluid) …
Intro to Structural Motion Control
damping ratio: (4.19) where (4.20) Equation (4.20) shows the relative contribution of the damper parameters to the total damping. Increasing the mass ratio magnifies the damping. However, since the added mass also increases, there is a practical limit on . Decreasing the damping coefficient for the damper also increases the damping. Noting …
Stationary crushers
Crusher automation 20 results. Stationary cone crushers 800i-series. CH895i. Nominal capacity 258 - 1,077 mtph (284 - 1,187 stph) Max. feed size 127 mm (5 in.) Motor power 750 kW (1,000 hp) CH895i. Stationary cone crushers 800i-series. CH890i. Nominal capacity 275 - 1,837 mtph (303 - 2,025 stph) Max. feed size
Vibration suppression on a platform by using vibration …
A new kind of vibration isolation and mitigation device with high damping …
(PDF) Vibration Test and Shock Absorption of Coal …
ment of the coal crusher body and platform in the Ezhou. ... In order to study the interactive damping of a primary-secondary coupled system, three damping strategies are presented. Based on it ...
New design of the crusher supporting structure
The integrity of the slewing platform structure was preserved by removing structural parts which were seriously damaged during long-term exploitation and breakdown, and installing the newly ...
Vibration damping pad of cone crusher
The utility model discloses a vibration damping pad of a cone crusher. The vibration damping pad comprises a lower connecting plate arranged above a base, and an upper connecting plate below the cone crusher, wherein connection holes are respectively formed in the upper and lower connecting plates; a plurality of rubber vibration damping layers …
Vibration Damping Mounts
Vibration-Damping Sheets. Stick to duct, housings, and other vibrating equipment to reduce noise. 10 products. Vibration-Damping Coatings. Apply to irregularly shaped equipment and large areas to reduce noise from vibration. 2 products. Fastening and Joining. Standoffs. Threaded to separate or connect parts as well as position components in ...
Reducing Blade Fatigue and Damping Platform Motions of …
Corpus ID: 164211842 Reducing Blade Fatigue and Damping Platform Motions of Floating Wind Turbines Using Model Predictive Control Rannam Chaaban, C. Fritzen Published 2014 Engineering With the ...
Nonlinear passive magnetorheological damping …
Scissor-like isolation platform (SIP) with magnetorheological damper (MRD) has been commonly studied and applied successfully in vehicle vibration isolation. This paper concerns passive nonlinear magnetorheological (MR) characteristics of the SIP via geometric nonlinearity induced by MRD's layout ways. A dynamic parametric model of …
Crusher Clicker ️ Play on CrazyGames
Crusher Clicker is an addictive game where you smash rocks and crystals, then upgrade to enhance your crushing power and speed. It's like operating a hydraulic press but with a satisfying, stress …
This Historic 1990 Cadillac Concept Car Is Headed to the Crusher
This futuristic Cadillac was a prophet of luxury sedans to come. But now, the groundbreaking car is on its way to destruction.
Platform and mooring system optimization of a 10 MW …
Fig. 2 a shows the 5 MW semisubmersible hull surface, which has been modelled in ANSYS AQWA for the calculation of Added Mass, Radiation Damping, Diffraction and Froude-Krilov Forces. To do so, a Hydrodynamic Diffraction analysis has been performed in a range of wave frequencies from 0 Hz to 0.2 Hz and wave heading …
CN208587452U
The utility model discloses a kind of crusher support platforms, including the first support plate, second support plate and support column, first support plate is arranged in parallel up and down with the second support plate, and first support plate connect with four corners of the second support plate by support column, resilient cushion is fixedly connected with …
Heave And Pitch Motions of a Spar Platform With Damping Plate …
Compared to the classical spar platform, the spar platform with damping plate shows significantly reduced heave motions at resonance. In experiments in regular waves, it is observed that pitch motions are triggered when the magnitude of heave motion exceeds a certain threshold, when the pitch natural period is approximately double the …
2002 Heave and Pitch Motion of A Spar Platform With Damping …
2002 Heave and Pitch Motion of a Spar Platform With Damping Plate - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Heave and Pitch Motion of a Spar Platform With Damping Plate
Townshend Audio Seismic Isolation Podiums
The heavy steel platform is supported at each corner by Townshend's Captive Load Cells that extend beyond the perimeter of the platform, providing a stable base. The Load Cell interior houses a steel-alloy compression spring surrounded by a flexible synthetic rubber jacket with two end plates—a movement-sensitive, air-resistant …
Dynamic Analysis of Support Frame Structures of …
damping to the rotor. This property can be used in rotor dynamics, when it is necessary to reduce the amplitudes of vibration if the machine is at a critical speed. It is also necessary to have simplifying hypotheses that make the numerical model practical, without mischaracterizing its behavior. a) Handbook of Machine Foundations (1976)
Damping vibration of platform structure using modified …
The proposed WGA absorbs the flexural wave propagating in a platform to …
CN219388504U
The utility model relates to the technical field of damping of crushers, in particular to a damping device for a jaw crusher. Through using mounting bracket, elevating platform and the base that set gradually from last down as damping device's structure, wherein, the mount table has been set up on the base, the mount table top edge is fixed to have set …
Spring Support of Coal Crusher Foundations in Power …
the crushers for chutes and other auxil-iary equipment. More open space inside the …
A user-configurable electric actuator hybrid test platform: …
This platform can be transferred to other medium or large electric actuator hybrid test platform, the research applications of this platform cannot be limited by their proposed setup. Firstly, the hardware system design including hybrid test facility integrated control system core architecture and all related signal routings are carried out.
Application and Optimization of Ring Spring Dampers for …
Due to the higher damping of the ring springs, the magnification factor in resonance could be reduced to (V_{d} = 4.2), which corresponds to a damping ratio of 12%. 3.4 Optimization. In dimensioning the ring springs, various parameters that influence the resilience of the overall system must be defined. The decisive factors are the …
Spring vibration-isolated foundation of medium-speed mill.
In these calculations, ξ z 0.1; the horizontal stiffness of the system was 0.78 times the vertical stiffness; and the horizontal damping coefficient was the same as the vertical damping ...
Reducing Blade Fatigue and Damping Platform Motions of …
With the recent trend in wind industry to invade deep water, floating platforms are becoming an active area of research and development. The floating platform adds extra degrees of freedom (DOFs) to the turbine structure, these added DOFs, if not taken into account actively or passively, can negatively affect the power production and turbine …
Silicone Rubber Vibration Damping Mounts
Vibration-Damping Pads. Place under machinery to reduce vibration and noise, extending service life and protecting floors. 3 products. Bumpers. Absorb impact to protect equipment and surfaces from dents and scuffs. 57 products. Raw Materials. . Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing.
Dynamic analysis of a novel semi-submersible platform for …
The DUT Semi platform is designed to support the DTU 10 MW reference wind turbine for a designed water depth of 130 m. The schematic layout of the DUT Semi FOWT and coordinate system are presented in Fig. 1.The X-axis points to the downwind direction of the integrated system of the FOWT originated from the intersection of the …
Vibration Damping for Machines and Equipment
Vibration damping for machines and equipment dissipates potentially-damaging energy that can reduce service life, loosen fasteners, and suggest poor quality. Vibration, a back-and-forth movement or oscillation, also produces structure-borne noise. Custom vibration dampers, a type of acoustic insulation, helps solve these challenges. ...
CN202173983U
The utility model relates to a damping device applied to a crusher, in particular to a damping base of a crusher, which comprises upright supporting columns and a mounting platform. The adjacent upright columns are connected by crossbeams to form a rectangular frame, each crossbeam consists of two horizontal beams and an inclined …
CN201121681Y
A vibration damping platform used for a two-way fine crusher relates to a mine size reduction machinery operation device, in particular to the technical structure field of a foregrinding machine at the coal preparation workshop section of a coking plant. The device consists of a steel-concrete framework connected with the fine crusher and a plurality of …