The Mechanical Model of the Self-Guided Single-Blade Deep-Hole Reamer

2012 ◽  
Vol 452-453 ◽  
pp. 597-601
Author(s):  
Xiao Bin Huang ◽  
Xing Quan Shen
Keyword(s):  
Structural Design ◽  
Mechanical Model ◽  
The Self ◽  
Cutting Conditions ◽  
Deep Hole

The structure and force of the reamers were analysed, and the mechanical model of the self-guided Single-blade deep-hole reamer was established. The fundamental basis of the structural design was expounded in theory. And analysed the Rationality which Single-blade tool and two Guide block were used. And the reamer stable cutting conditions were obtained.

The Mechanical Model of the Self-Guided Single-Blade Deep-Hole Reamer

2012 ◽  
Vol 452-453 ◽  
pp. 597-601
Author(s):  
Xiao Bin Huang ◽  
Xing Quan Shen
Keyword(s):  
Mechanical Model ◽  
The Self ◽  
Deep Hole

Study on Technology of Restraining the Vibration of Deep-Hole Boring and the Helix Lobes

2011 ◽  
Vol 697-698 ◽  
pp. 9-12
Author(s):  
Lin Zhu ◽  
Ying Fei Nan
Keyword(s):  
Mechanical Model ◽  
Deep Hole ◽  
Forming Mechanism ◽  
Excited Vibration

On the base of studying the forming mechanism of self-excited vibration and helix lobes in deep-hole boring, the paper established a mechanical model and analysed the effect of the length of the guide pads on the vibration and stability. Moreover, the reasonable length of the guide pads was verified by the experiments of the guide pads testing.

Transient Forced Response Analysis of Mistuned Steam Turbine Blades During Startup and Coastdown

2016 ◽  
Vol 139 (1) ◽  
Author(s):  
Christian Siewert ◽  
Heinrich Stüer
Keyword(s):  
Mechanical Model ◽  
Turbine Blades ◽  
Forced Vibrations ◽  
Forced Response ◽  
The Self ◽  
Response Analysis ◽  
Computationally Efficient ◽  
Bladed Disk ◽  
Steam Turbine Blades ◽  
Number Of Publications

It is well known that the vibrational behavior of a mistuned bladed disk differs strongly from that of a tuned bladed disk. A large number of publications dealing with the dynamics of mistuned bladed disks are available in the literature. The vibrational phenomena analyzed in these publications are either forced vibrations or self-excited flutter vibrations. Nearly, all published literature on the forced vibrations of mistuned blades disks considers harmonic, i.e., steady-state, vibrations, whereas the self-excited flutter vibrations are analyzed by the evaluation of the margin against instabilities by means of a modal, or rather than eigenvalue, analysis. The transient forced response of mistuned bladed disk is not analyzed in detail so far. In this paper, a computationally efficient mechanical model of a mistuned bladed disk to compute the transient forced response is presented. This model is based on the well-known fundamental model of mistuning (FMM). With this model, the statistics of the transient forced response of a mistuned bladed disk is analyzed and compared to the results of harmonic forced response analysis.

Design Method of Self-Loading Device of the Side-Crane Used for Container

2012 ◽  
Vol 466-467 ◽  
pp. 951-955
Author(s):  
Jun Qing Zhan ◽  
Xiao Mei Feng ◽  
Li Shun Li ◽  
Xiang De Meng
Keyword(s):  
Mathematical Model ◽  
Structural Design ◽  
Design Method ◽  
The Self ◽  
Design Calculation ◽  
Force Analysis ◽  
Loading Device ◽  
Calculation Results ◽  
The Mathematical Model ◽  
Flat Ground

The self-loading device used for side-crane is put forward. Its structure is presented. Based on the force analysis when the side-crane works at flat ground, the mathematical model is established when the crane working at uneven ground. And the design calculation is performed. The self-loading device’s optimal design is accomplished. Based on the above calculation results, the self-loading prototype is manufactured. And the design method can be adopted to the similar equipment’s structural design.

Experimental Research on Ultrasonic Vibration Deep Hole Honing of Titanium Alloy

2011 ◽  
Vol 314-316 ◽  
pp. 1107-1111
Author(s):  
Hong Bing Zhao ◽  
Ying Fei Nan
Keyword(s):  
Surface Roughness ◽  
Titanium Alloy ◽  
Ultrasonic Vibration ◽  
Experimental Research ◽  
High Surface ◽  
The Self ◽  
Deep Hole ◽  
High Surface Roughness ◽  
Low Efficiency ◽  
Better Than

Deep hole honing is the primary way of finishing, the main problems existing now are the low efficiency, high surface roughness, especially in the processing of difficult to cut materials. In this study, the test is on the titanium alloy and uses the self-developed ultrasonic vibration honing equipment. The results show that in the same conditions, the ultrasonic vibration in deep-hole honing can improve the efficiency about 1 times, and meanwhile the surface roughness can reach below 0.8μm, the oilstone is uneasy to block, and the technical effects are better than traditional honing process.

Self-Propulsion of a Capsule on a Viscous Surface

2006 ◽  
Author(s):  
Mark McLellan ◽  
Mingxuan Fan ◽  
Z. C. Feng
Keyword(s):  
Piezoelectric Actuator ◽  
Mechanical Model ◽  
Shear Thickening ◽  
Interfacial Interaction ◽  
The Self ◽  
Experimental Setup ◽  
Interfacial Force

We propose a mechanical model for a capsule containing a piezoelectric actuator. The interfacial interaction between the capsule and a surface is assumed to be viscous. Nonlinearity in the interfacial force such as shear thickening is assumed to be present. When periodic excitations are applied to the piezoelectric actuator, the capsule is shown to propel itself. The self-propulsion is confirmed through an experimental setup.

Fundamental Experiment of Near-Dry Deep Hole Drilling with BTA Tool - The Optimal Cutting Conditions and Tool’s Geometry

2012 ◽  
Vol 523-524 ◽  
pp. 109-112
Author(s):  
Fukuhito Nagata ◽  
Koji Akashi ◽  
Daisaku Ishibashi
Keyword(s):  
Cutting Speed ◽  
Cutting Conditions ◽  
Hole Drilling ◽  
Cutting Condition ◽  
Deep Hole ◽  
Deep Hole Drilling ◽  
Environmental Destruction ◽  
Optimum Cutting ◽  
Cutting Experiments ◽  
Fundamental Experiment

The BTA tool is a tool for deep-hole drilling. The deep-hole which be machined by this tool has the excellent straightness and roughness. However, it's use a lot of cutting oil. Therefore, it will lead to environmental destruction. Thereupon, in this study, it is applied the near-dry system to the deep-hole drilling with BTA tool. In the previously, it was designed the experimental device with a double tube system, and the cutting experiments was carried out. In this system, the chip is discharged through inside of the inner tube. Frequently, the chip is cannot be divided by the adhesion on the cutting edge during drilling. Thereby, the chip was jammed into the inside of tool’s tube. It is tried experiments of various cutting conditions, cutting speed and feed rate, by tools with different geometry, height and width, of the chip-breaker. And, it is observed the discharge condition of chips, the chip’s shape and the situation of adhesion. As a result, it can be found the optimum cutting condition and tool’s geometry for a continuous chip’s discharge while the deep-hole is drilling by a BTA tool in near-dry system.

Study on the Frost Heave Characteristics of Artificial Frozen Soil Under Different Freezing Mode

2012 ◽  
Vol 204-208 ◽  
pp. 599-603
Author(s):  
Jun Hao Chen
Keyword(s):  
Structural Design ◽  
Computer Control ◽  
Frozen Soil ◽  
The Self ◽  
Frost Heave ◽  
Test Machine ◽  
Freezing Method ◽  
Artificial Freezing ◽  
Similarities And Differences ◽  
Artificial Freezing Method

At the self-developed DZL-001 computer control of frozen soil frozen-heave test machine, use artificial freezing method carry out vertical and lateral freezing two modes frost heave test of remoulded clay, each mode test includes under no replenishment and replenishment conditions. Monitor the temperature, moisture and frost heave of frozen soil at different location. Compare the similarities and differences of frost heave characteristics of two modes, master the frost heave characteristics of artificial frozen soil. The results provide a certain guidance and reference meaning to layer sidewall structural design.

Mechanical Model and Movement Analysis of Self-Adjusting Bolt in Converter

2014 ◽  
Vol 488-489 ◽  
pp. 1070-1073
Author(s):  
Qiang Yin ◽  
Gong Fa Li
Keyword(s):  
Stress Analysis ◽  
Dynamic Load ◽  
Mechanical Model ◽  
Movement Analysis ◽  
Mechanical Analysis ◽  
Model Analysis ◽  
The Self ◽  
Maximum Torque ◽  
Movement Model ◽  
Bolt Support

The movement model of self-adjusting bolt is built in this paper, then the kinematical and mechanical analysis is taken to determine the movement of bolt under the converters working condition.Via the mechanical model analysis of self-adjusting bolts, the load applied to the self-adjusting bolt support including the static weight load of converter and steel liquid, the tilting torque, the dynamic load produced by frequent startup, brake, impact, and the boiling of steel liquid is calculated to determine the distribution of load forcing on the three groups of the self-adjusting bolt. According to the results of stress analysis, the bolt facing tapping hole is the most dangerous when converter tilts 63°. The maximum torque is 281.5101tm.

Mechanical Properties and Calculation Model of Eco-Composite Wall

2012 ◽  
Vol 256-259 ◽  
pp. 836-839
Author(s):  
Li Na Hou ◽  
Gang Jing
Keyword(s):  
Mechanical Properties ◽  
Structural Characteristic ◽  
Structural Design ◽  
Mechanical Model ◽  
Calculation Model ◽  
Wall Structure ◽  
Main Bearing ◽  
Collaborative Performance ◽  
Study Results ◽  
Composite Wall

Eco-composite wall, as the main bearing member of the eco-composite wall structure, has unique structural characteristic compared with traditional wall. The constructional features, mechanical properties and collaborative performance of the wall are analyzed. Based on this, the three-stage mechanical model of eco-composite wall is put forward. The study results indicate that the eco-composite wall has unique structural characteristic, which makes the structure in possession of several seismic defending lines and have good seismic performance. The three-stage mechanical model is proved reasonable and applicable in structural design.

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