Structural Optimization Design of Body of Oil-Perforating Gun

2014 ◽  
Vol 496-500 ◽  
pp. 621-625
Author(s):  
Ming Ju Zhao ◽  
Gong Zhi Zhu
Keyword(s):  
Wall Thickness ◽  
Optimization Design ◽  
Body Wall ◽  
Equivalent Stress ◽  
Great Influence ◽  
Hole Diameter ◽  
Ansys Software ◽  
Hole Depth ◽  
Blind Hole ◽  
Parametric Optimal Design

In the design of structure of oil perforating gun, for on the depth of perforating gun blind hole diameter, and the gun body wall thickness design is the key technology, through the introduction of optimization design technology, under the condition of satisfy the use requirement, language APDL of ANSYS software parametric optimal design of several data, the minimum wall thickness can get a gun. And on this basis, the blind hole diameter and depth was studied the influence of the strength of perforating gun. Conclusion shows that with the increase of blind hole depth, blind hole gun gun with blind hole part of the equivalent stress increased significantly, the strength of the blind hole depth of perforating gun has a great influence, and the intensity of blind hole diameter has little effect.

Stress analysis and structural optimization of 3-D IC package based on the Taguchi method

2019 ◽  
Vol 32 (1) ◽  
pp. 42-47 ◽  
Author(s):  
Ming-Yue Xiong ◽  
Liang Zhang ◽  
Peng He ◽  
Wei-Min Long
Keyword(s):  
Solder Joint ◽  
Optimization Design ◽  
Equivalent Stress ◽  
Great Influence ◽  
Chip Thickness ◽  
Von Mises Stress ◽  
Substrate Thickness ◽  
Original Design ◽  
Content Type ◽  
Joint Material

Purpose The transistor circuit based on Moore's Law is approaching the performance limit. The three-dimensional integrated circuit (3-D IC) is an important way to implement More than Moore. The main problems in the development of 3-D IC are Joule heating and stress. The stresses and strains generated in 3-D ICs will affect the performance of electronic products, leading to various reliability issues. The intermetallic compound (IMC) joint materials and structures are the main factors affecting 3-D IC stress. The purpose of this paper is to optimize the design of the 3-D IC. Design/methodology/approach To optimize the design of 3-D IC, the numerical model of 3-D IC was established. The Taguchi experiment was designed to simulate the influence of IMC joint material, solder joint array and package size on 3-D IC stress. Findings The simulation results show that the solder joint array and IMC joint materials have great influence on the equivalent stress. Compared with the original design, the von Mises stress of the optimal design was reduced by 69.96 per cent, the signal-to-noise ratio (S/N) was increased by 10.46 dB and the fatigue life of the Sn-3.9Ag-0.6Cu solder joint was increased from 415 to 533 cycles, indicating that the reliability of the 3-D IC has been significantly improved. Originality/value It is necessary to study the material properties of the bonded structure since 3-D IC is a new packaging structure. Currently, there is no relevant research on the optimization design of solder joint array in 3-D IC. Therefore, the IMC joint material, the solder joint array, the chip thickness and the substrate thickness are selected as the control factors to analyze the influence of various factors on the 3-D IC stress and design. The orthogonal experiment is used to optimize the structure of the 3-D IC.

Optimization Design of EMU Process Bogie Wheel Frame Based on ANSYS

2014 ◽  
Vol 556-562 ◽  
pp. 1446-1449
Author(s):  
Jun Dai
Keyword(s):  
Optimization Design ◽  
Equivalent Stress ◽  
Static Characteristic ◽  
Frame Structure ◽  
Ansys Software ◽  
Modal Shape ◽  
Structure Deformation ◽  
Maximum Equivalent Stress ◽  
Saw Blade ◽  
D Model

According to the saw blade for process bogie structure characteristics,the use of Pro /E 3 d software based on the 3 d model,with ANSYS software,a static and modal analysis,obtained the stress pattern,structure deformation diagram and the former 6 order natural frequency and modal shape. The analysis results show that the node the maximum equivalent stress and the maximal displacement nodes are within the scope of the provisions,the data are meet the requirements,frame structure overall stiffness is better,frame has good static characteristic and dynamic characteristic,can meet the design requirements.And on this basis to frame was further optimized,so as to save materials,reduce cost.The theoretical basis is provided for the development of the process bogie .

scholarly journals Structural Statics Analysis and Optimization Design of Regulating Device for Air Conveyer Outlet in Coal Mine

2018 ◽  
Vol 38 ◽  
pp. 04006 ◽  
Author(s):  
Xiaoyan Gong ◽  
Ying Li ◽  
Yongqiang Zhang
Keyword(s):  
Optimization Design ◽  
Dead Zone ◽  
Equivalent Stress ◽  
Control Device ◽  
Structural Safety ◽  
Ansys Software ◽  
Gas Emission ◽  
Long Distance ◽  
New Device ◽  
Production Increase

In view of the enlargement of fully mechanized face excavation and long distance driving, gas emission and dust production increase greatly. However, the current ventilation device direction angle, caliber and front-back distance cannot change dynamically at any time, resulting in the serious accumulation in the dead zone. In this paper, a new device were proposed that can solve above problems. Finite element ANSYS software were used to simulate and optimize the structural safety of the control device' key components. The optimization results showed that the equivalent stress decreases by 49%; after the optimization of deformation and mass are 0.829mm and 0.548kg, which were 21% and 10% lower than before.The quality, safety, reliability and cost of the control device reach the expected standards perfectly, which can meet the requirements of safe ventilation and down-dusting of fully mechanized face.

Study on Recast Phenomenon in Processing of Micro-Hole with Millisecond Laser

2012 ◽  
Vol 459 ◽  
pp. 315-319 ◽  
Author(s):  
Ke Dian Wang ◽  
Wen Qiang Duan ◽  
Xue Song Mei ◽  
Wen Jun Wang
Keyword(s):  
Stainless Steel ◽  
Titanium Alloy ◽  
Pulse Width ◽  
Peak Power ◽  
Recast Layer ◽  
Hole Depth ◽  
Maximum Peak ◽  
Blind Hole ◽  
Micro Hole ◽  
Millisecond Laser

The experiments of micro-hole ablation are conducted firstly on titanium alloy Ti-6Al-4V with Nd: YAG millisecond laser. A significant factor which affects the depth of blind hole is found: the depth of recast material. This paper closely examines the regularity of recast depth varying with laser parameters, discovering that the ratio of recast depth to the entire hole depth decreases as pulse width decreases, and increases as peak power decreases. Verification experiment is conducted on stainless steel 1Cr13, eventually micro-hole with very thin recast layer is drilled when the maximum peak power and the minimum pulse width of the present millisecond laser are used.

Numerical Simulation of Flow in Imported Steam Turbine Inlet Components with Equilibrated Holes in High Performance

2013 ◽  
Vol 712-715 ◽  
pp. 1263-1267
Author(s):  
Shan Tu ◽  
Shu Ming Wu ◽  
Qi Zhou ◽  
Hong Mei Zhang ◽  
Xiao Qing Zhu
Keyword(s):  
Flow Field ◽  
Steam Turbine ◽  
High Performance ◽  
Optimization Design ◽  
Great Influence ◽  
Control Valve ◽  
Stable Operation ◽  
Valve Seat ◽  
Valve Disc ◽  
Interior Flow

The main inlet component of steam turbine is control valve. The stable operation of the steam turbine control valve is vital for safe and stable operation of the steam turbine and safety production of the power plant. However, due to the complexity of the structure and unsteady characteristics of steam flow in the valve, there is not enough experimental method about the detailed flow characteristics of the area near control valve disc and the inside of the valve chamber up to now. This article is to focus on the simulation of the steam turbine control valve interior flow field which includes the valve pre-inlet channel in different conditions, then find the reasons which caused instability and pressure loss of the control valve by analyzing the flow field details, finally further optimization design. The profile matching of the valve disc and valve seat has a great influence on the interior flow field of control valve, so analysis of the high performance valve disc shape and divergence angle of valve seat is carried out, and the research conclusion is used for guide design and development of the control valve.

Analysis of lubrication and sealing performance on textured piston pair with multi-factor coupling

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Song Quan ◽  
Yong Guo ◽  
Xuedong Liu ◽  
Zhewu Chen ◽  
Yudi Liu
Keyword(s):  
Energy Consumption ◽  
Optimization Design ◽  
Great Influence ◽  
Diameter Ratio ◽  
Content Type ◽  
Hydraulic Impact ◽  
Sealing Performance ◽  
Lubrication Performance ◽  
Low Energy Consumption ◽  
Piston Pair

Purpose This paper aims to study the lubrication and sealing performance on the textured piston pair under the cross action of the shape and structure parameters. This paper further carries out the optimization design of low energy consumption hydraulic impact piston pair. Design/methodology/approach Based on the characteristics of the ring gap seal piston pair, the flow field analysis model of the whole film gap is established for its periodic treatment. The friction power loss of the piston pair is defined as the evaluation index of the lubrication performance and the leakage power loss as the evaluation index of the sealing performance. The orthogonal test design and CFD software were used to analyze the lubrication and sealing performance of the textured piston pair. Findings The cross action of shape and structure factors has a great influence of the lubrication and sealing performance on the textured piston pair. Clearance and shape parameters have great influence on it, while seal length and depth diameter ratio have little influence. The sealing performance of conical textured piston pair is good, while the lubrication performance of square textured piston pair is good. The primary and secondary order of influence of shape and structure on energy consumption on piston pair is B (seal clearance) > C (texture shape) > D (area ratio) > A (seal length) > E (depth diameter ratio). Originality/value Breaking the defect of local optimization design on traditional piston pair structure, then find the matching relationship of structural parameters on textured piston pair. Further improve the lubrication and sealing performance of the piston pair, and provide reference for the global optimization design of the low energy consumption hydraulic impact piston pair.

Optimization design of titanium alloy connecting rod based on structural topology optimization

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Bin Zheng ◽  
Yi Cai ◽  
Kelun Tang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Topology Optimization ◽  
Optimization Design ◽  
Equivalent Stress ◽  
Connecting Rod ◽  
Element Analysis ◽  
Content Type ◽  
The Finite Element Analysis ◽  
Maximum Equivalent Stress

Purpose The purpose of this paper is to realize the lightweight of connecting rod and meet the requirements of low energy consumption and vibration. Based on the structural design of the original connecting rod, the finite element analysis was conducted to reduce the weight and increase the natural frequencies, so as to reduce materials consumption and improve the energy efficiency of internal combustion engine. Design/methodology/approach The finite element analysis, structural optimization design and topology optimization of the connecting rod are applied. Efficient hybrid method is deployed: static and modal analysis; and structure re-design of the connecting rod based on topology optimization. Findings After the optimization of the connecting rod, the weight is reduced from 1.7907 to 1.4875 kg, with a reduction of 16.93%. The maximum equivalent stress of the optimized connecting rod is 183.97 MPa and that of the original structure is 217.18 MPa, with the reduction of 15.62%. The first, second and third natural frequencies of the optimized connecting rod are increased by 8.89%, 8.85% and 11.09%, respectively. Through the finite element analysis and based on the lightweight, the maximum equivalent stress is reduced and the low-order natural frequency is increased. Originality/value This paper presents an optimization method on the connecting rod structure. Based on the statics and modal analysis of the connecting rod and combined with the topology optimization, the size of the connecting rod is improved, and the static and dynamic characteristics of the optimized connecting rod are improved.

The Structure Optimization Design for the W-Type Metallic Sealing Ring Based on the MOGA Algorithm

2015 ◽  
Vol 727-728 ◽  
pp. 541-545
Author(s):  
Xiang Yu Ding
Keyword(s):  
Mechanical Properties ◽  
Optimal Design ◽  
Optimization Algorithm ◽  
Optimization Design ◽  
Structure Optimization ◽  
Ansys Software ◽  
Sealing Ring ◽  
Structure Optimization Design

This paper uses the ANSYS software to analysis the outer arm opening angel(OAOA) and the outer arm arc angle(OAAA) of W-type metallic sealing ring which can effects on the mechanical properties,obtained in that when the OAOA choose from 1.398°to 14.156 °and the OAAA choose from 30.21° to 59.5 °, the mechanical properties of the sealing ring can satisfy the requirement of use. Then using the MOGA optimization algorithm to optimize the design of W-type metallic sealing ring, and find when the OAOA choose 3.39°and the OAAA choose 32.18°are the optimal design of the W-type metallic sealing ring.

scholarly journals Simulation of human bone implant duralium material with variation loading using Ansys software

2018 ◽  
Vol 204 ◽  
pp. 07020
Author(s):  
Didin Mujahidin ◽  
Poppy Puspitasari ◽  
Djoko Kustono
Keyword(s):  
Stainless Steel ◽  
Shear Stress ◽  
Equivalent Stress ◽  
Titanium Implants ◽  
Material Strength ◽  
Body Parts ◽  
Ansys Software ◽  
Implant Materials ◽  
Broken Bones ◽  
Material Hardness

Bone implants are a tool used as a support of body parts, and bone support in cases of fractures. Scaffold, plate, bone screw, and some other tools can be used in combination to support and fill the connection between broken bones before the tissue grows. The most commonly used implant materials are Titanium, Stainless steel and ceramics, which are very common in the use of medical devices. Biocompatible materials are taken into consideration when planning a medical device. This research intended to know the durability of duralumin material as the latest implant material, as the development and breakthrough in health world. The research methodology used in this study was the optimization in Ansys software 18.1. The implants were designed, the material strength was determined and then given imposition with 6 variations (450 N, 550 N, 650 N, 750 N, 850 N and 950 N). The optimization was a method that identified mat erial strength including Equivalent Stress, Shear Stress and Total Deformation of duralumin material as implant materials with loading variations. Based on the results of the research, the duralumin material had a equivalent stress of 475,700 Pa which was higher than 950000 Pa for ZnO-Al2O3 implants, while the duralumin shear stress of 1084500 Pa was higher than 313720 Pa for ZnO-Al2O3 implants. When compared with titanium implants, the highest equivalent stress of 150000 Pa duralumin material had a higher compression stress than titanium. The highest shear stress of titanium 4358.1 Pa means an implant with a higher shear duralumin material of titanium. Whereas if it was compared to stainless steel with voltage press 564000000 Pa, then the duralumin’s pressure was getting lower. Material hardness affects resistance to wear and tear. Duralumin material hardness was lower than Titanium and ZnO-Al2O3, so total Duralumin deformation (elasticity) was higher than Titanium and ZnO-Al2O3.

Analysis and Research of Piezoelectric Dynamic Weighing Sensor

2011 ◽  
Vol 483 ◽  
pp. 643-646 ◽  
Author(s):  
Li Bo Zhao ◽  
Jian Qiang Liang ◽  
Yu Long Zhao ◽  
Jian Zhu Wang ◽  
Wei Chen ◽  
...  
Keyword(s):  
Wall Thickness ◽  
Quartz Crystal ◽  
Piezoelectric Effect ◽  
Fem Simulation ◽  
Ansys Software ◽  
Critical Dimensions ◽  
Load Carrying ◽  
Piezoelectric Coupling ◽  
Influence Curve ◽  
Dynamic Weighing

The Kistler company has invented piezoelectric dynamic weighing sensors which are applied to determine dynamically axle load, speed and gross weight of the vehicle based on piezoelectric effect of quartz crystal. They mainly consist of load-carrying beams and sensitive elements. Focusing on the control of preload in design and fabrication, finite element method (FEM) is applied with ANSYS software to optimize structural sizes. The influence curve of the structural dimensions of load-carrying beam on the preload is analyzed. With the piezoelectric coupling analysis function, the preload influence on the sensor sensitivity is researched. FEM simulation results show that the critical dimensions of load-carrying beam as well as the deformation and wall thickness of cavity have significant impact on the preload. Further studies show that the sensor has the highest sensitivity with the reasonable deformation and wall thickness of the cavity. In this paper, a sensor with range of 150 kN has the highest sensitivity at the wall thickness of 2 mm and the deformation of 0.14 mm.

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