scholarly journals Coulisse mechanism with rotating link for operating part drive unit of the mortar pump

2021 ◽  
Vol 264 ◽  
pp. 05050
Author(s):  
Bakhtiyar Alimov ◽  
Rakhmat Sindarov ◽  
Panzhi Egamshukurov ◽  
Fotima Dzhumabayeva ◽  
Shoira Saidova
Keyword(s):  
Planetary Gear ◽  
Piston Pump ◽  
Construction Site ◽  
Drive Unit ◽  
Pump Performance ◽  
Link Mechanism ◽  
Kinematic Diagram ◽  
Piston Stroke

The synthesis of a connecting link mechanism with a rotating link with a planetary gear for driving the operating part of a piston pump during transportation of solution mixtures from the preparation site to the construction site is presented. The kinematic diagram of the axial and disaxial connecting link mechanism is given, which allow increasing the pump performance by increasing the length of the piston stroke S by 1.7 ... 3 times more than the serial pumps produced and reducing the load on the pump bearing support.

Novel Piston Pressure Carryover for Dynamic Analysis and Designs of the Axial Piston Pump

2012 ◽  
Vol 135 (2) ◽  
Author(s):  
Shu Wang
Keyword(s):  
Piston Pump ◽  
Axial Piston Pump ◽  
Pump Performance ◽  
Axial Piston Pumps ◽  
Bottom Dead Center ◽  
Pump Pressure ◽  
Definition Of ◽  
And Control ◽  
Axial Piston ◽  
The Relationship

The timing definition of valve plates is one of the most complex topics in the piston pump designs because it affects many pump characteristics (such as efficiency, swashplate stroking, stabilities, noise, etc.). In the study, the pressure carryover is introduced and defined as the average angular positions to locate piston pressure transitions from the top dead center (TDC) or bottom dead center (BDC) in the piston pump. Pressure carryover presents the overall outcome of the pressure transitions within piston bores. The new pressure carryover definition is derived by the timing angles and other geometrics of valve plates that is an approximation of the practical pressure transitions. The pressure carryover also determines the containment forces and moments on the swashplate produced by the pumping pistons. The relationship between the pressure carryover angle and the containment moment has been developed and analyzed in the study. The amplitudes and frequencies of the forces and moments can be changed by varying the pressure carryover angle that produce different tonalities and control efforts for the swashplate type axial-piston pumps. Therefore, the pressure carryover is the most important and straightforward connection between pump dynamics and valve plate designs. In order to optimize the pump performance, the piston pressure carryover might be investigated thoroughly for the pump and its controller designs.

scholarly journals Automatic Enumeration of Feasible Kinematic Diagrams for Split Hybrid Configurations With a Single Planetary Gear

2017 ◽  
Vol 139 (8) ◽  
Author(s):  
Toumadher Barhoumi ◽  
Dongsuk Kum
Keyword(s):  
First Generation ◽  
Design Space ◽  
Planetary Gear ◽  
Vehicle Design ◽  
Schematic Diagram ◽  
Configuration Optimization ◽  
Power Split ◽  
Kinematic Diagram ◽  
Powertrain Configuration ◽  
Selection Of

Most of the prior studies on power-split hybrid electric vehicle's (PS-HEV) design focused on the powertrain configuration optimization. Yet, depicting the selected configuration is highly required for further design steps, ultimately manufacturing. This paper proposes an automatic approach to generate all the feasible kinematic diagrams for a given configuration with a single planetary gear (PG) set. While the powertrain configuration, which is the output of prior studies, illustrates the connection of the powertrain components to the PG, the kinematic diagram is a schematic diagram depicting the connections and arrangements of the components. First, positioning diagrams, specifying the position of the components with respect to each other and to the PG, are used to find all the possible arrangements. Then, given that the positioning diagrams have a one-to-one relationship with the kinematic diagrams, the feasible kinematic diagrams are identified using a set of feasibility rules applicable to the positioning diagrams. Finally, few guidelines are introduced to select good kinematic diagrams that best suit the overall vehicle design. Various configurations were investigated, and three of them including Prius and Voltec first-generation single PG configurations are discussed. The study reveals that the kinematic diagrams that have been patented are only a subset of all the feasible kinematic diagrams, and that even some good kinematic diagrams with better manufacturability are identified using this methodology. Thus, this methodology guarantees the search of the entire design space and the selection of kinematic diagrams that best suit the desired vehicle.

scholarly journals Numerical analysis of stiffener for hybrid drive unite

2018 ◽  
Vol 157 ◽  
pp. 02015 ◽  
Author(s):  
Lenka Jakubovičová ◽  
Milan Sága ◽  
Marián Handrik
Keyword(s):  
Strain Analysis ◽  
Planetary Gear ◽  
Mechanical Transmission ◽  
Hybrid Drive ◽  
Drive Unit ◽  
Finite Element Software ◽  
Standard Interface ◽  
Strain Stress ◽  
Additional Support ◽  
Ansys Workbench

The matter of this article is a stress-strain analysis of hybrid drive prototype unit connected directly to convention Concrete Transit Mixer Gearbox. The unite was developed with intention to do field test on existing convection machines with possibility to use existing interfaces. The hybrid drive unit consists from electric and hydrostatic motor connected through addition mechanical transmission gearbox. The question is if today standard interface is good enough or need additional support a “stiffener”. Two engineering design were analysed. The first one includes using the stiffener to fixate the construction of hybrid drive unite connected to the planetary gear. The second one is without the stiffener. For strain-stress analysis, a finite element software ANSYS Workbench was used.

Predicting axial piston pump performance using neural networks

1999 ◽  
Vol 34 (8) ◽  
pp. 1211-1226 ◽  
Author(s):  
Mansour A Karkoub ◽  
Osama E Gad ◽  
Mahmoud G Rabie
Keyword(s):  
Neural Networks ◽  
Piston Pump ◽  
Axial Piston Pump ◽  
Pump Performance ◽  
Axial Piston

Chargers for Better Piston Pump Performance

1983 ◽  
Author(s):  
S.L. Collier ◽  
R.K. Jefferies
Keyword(s):  
Piston Pump ◽  
Pump Performance

Helicopter main reduction planetary gear fault diagnosis method based on SVDD

2020 ◽  
Vol 64 (1-4) ◽  
pp. 137-145
Author(s):  
Yubin Xia ◽  
Dakai Liang ◽  
Guo Zheng ◽  
Jingling Wang ◽  
Jie Zeng
Keyword(s):  
Fault Diagnosis ◽  
Planetary Gear ◽  
Gaussian Kernel ◽  
Support Vector ◽  
Support Vector Data Description ◽  
Vector Data ◽  
Energy Characteristics ◽  
Gear Fault ◽  
Channel Information ◽  
Diagnosis Method

Aiming at the irregularity of the fault characteristics of the helicopter main reducer planetary gear, a fault diagnosis method based on support vector data description (SVDD) is proposed. The working condition of the helicopter is complex and changeable, and the fault characteristics of the planetary gear also show irregularity with the change of working conditions. It is impossible to diagnose the fault by the regularity of a single fault feature; so a method of SVDD based on Gaussian kernel function is used. By connecting the energy characteristics and fault characteristics of the helicopter main reducer running state signal and performing vector quantization, the planetary gear of the helicopter main reducer is characterized, and simultaneously couple the multi-channel information, which can accurately characterize the operational state of the planetary gear’s state.

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