scholarly journals Analysis of the combination of the slider-crank and cam mechanism to drive the automatic bandsaw blade grinder

2021 ◽  
Vol 62 (4) ◽  
pp. 91-99
Author(s):  
Tan Dang Nguyen ◽  
Thang Hong Thi Le ◽  
Giap Van Doan ◽  
Keyword(s):  
Dynamic Load ◽  
Analytical Methods ◽  
3D Simulation ◽  
Analytic Method ◽  
Structural Profile ◽  
Technical Parameters ◽  
Cam Mechanism ◽  
Mathematical Formulas ◽  
Mathcad Software ◽  
Crank Mechanism

A slide crank and cam mechanism can be combined and used to drive a bandsaw blade grinder. The movement of these mechanisms must ensure a harmonious combination to avoid the impacts of a collision and dynamic load that appears on the cam and roller surfaces. The technical parameters can be determined by methods of geometry, or 3D simulation, or analytical methods. In order to flexibly design the cam and slide crank mechanism, this study uses the analytic method. By setting up mathematical formulas and applying Mathcad software, it allows to quickly determine and change the initial parameters of the mechanisms, evaluates their changes to the stroke and structural profile. Simultaneously, the graphs of the stroke, velocity, and acceleration of the cam mechanism allow the designer to evaluate and select suitable parameters.

scholarly journals Determination of the Vertical Load on the Carrying Structure of a Flat Wagon with the 18–100 and Y25 Bogies

2021 ◽  
Vol 11 (9) ◽  
pp. 4130
Author(s):  
Oleksij Fomin ◽  
Alyona Lovska ◽  
Václav Píštěk ◽  
Pavel Kučera
Keyword(s):  
Mathematical Model ◽  
Fatigue Strength ◽  
Service Life ◽  
Dynamic Characteristics ◽  
Dynamic Load ◽  
Field Tests ◽  
Vertical Load ◽  
Mathcad Software ◽  
The Mathematical Model

The study deals with determination of the vertical load on the carrying structure of a flat wagon on the 18–100 and Y25 bogies using mathematic modelling. The study was made for an empty wagon passing over a joint irregularity. The authors calculated the carrying structure of a flat wagon with the designed parameters and the actual features recorded during field tests. The mathematical model was solved in MathCad software. The study found that application of the Y25 bogie for a flat wagon with the designed parameters can decrease the dynamic load by 41.1% in comparison to that with the 18–100 bogie. Therefore, application of the Y25 bogie under a flat wagon with the actual parameters allows decreasing the dynamic loading by 41.4% in comparison to that with the 18–100 bogie. The study also looks at the service life of the supporting structure of a flat wagon with the Y25 bogie, which can be more than twice as long as the 18–100 bogie. The research can be of interest for specialists concerned with improvements in the dynamic characteristics and the fatigue strength of freight cars, safe rail operation, freight security, and the results of the research can be used for development of innovative wagon structures.

Effects of Solid Viscosities, Loading Velocities and Initial Deflections to Dynamic Buckling Loads of a Column

1969 ◽  
Vol 73 (706) ◽  
pp. 890-894
Author(s):  
Shin-Ichi Suzuki
Keyword(s):  
Dynamic Load ◽  
Analytical Methods ◽  
Dynamic Buckling ◽  
Static Loads ◽  
Buckling Loads ◽  
Load Factors

It is a well-known fact that buckling values for columns under dynamical loads are different from those under static loads. Meier, Gerard and Davidson have already investigated the dynamics of the buckling of elastic columns theoretically and experimentally, and Hoff discussed analytical methods in detail. However, solid viscosities are neglected in all these researches. Previously, the author obtained the relationships between dynamic load factors and solid viscosities, and it was found that their effects on dynamic load factors cannot be neglected. It will be interesting to investigate the relationships between solid viscosities and dynamic buckling values.

An analytic method for the determination of distant terrain corrections

Geophysics ◽  
1982 ◽  
Vol 47 (10) ◽  
pp. 1453-1455 ◽  
Author(s):  
Z. F. Danés
Keyword(s):  
Gravity Field ◽  
Analytical Methods ◽  
Gravity Data ◽  
Analytic Method ◽  
Topographic Map ◽  
Terrain Corrections

Terrain corrections of gravity data are by far the most awkward and time‐consuming reductions needed in exploration geophysics. The terrain must be subdivided into small prisms; the average elevation of each prism must be found on a topographic map; the gravity field of each prism must be determined by analytical methods; and the contributions of all the prisms must be added up.

Development of Shaking Table for Rapid Detection System of Microorganisms

2015 ◽  
Vol 775 ◽  
pp. 394-398
Author(s):  
Hao Dong Wang ◽  
Yi Hong Sun ◽  
Jing Chun Chen
Keyword(s):  
Rapid Detection ◽  
Detection System ◽  
Low Cost ◽  
Test Tube ◽  
Shaking Table ◽  
Cam Mechanism ◽  
Component Design ◽  
Design And Manufacturing ◽  
Gear Mechanism ◽  
Crank Mechanism

Shaking table is an important component in rapid detection system of microorganisms. Based on the discussion regarding the advantage and shortage of the shaking table, this paper proposed a simple, reliable, and low-cost automatic shaking table. Three mechanisms were discussed with the achievement of reciprocating motion: slide-crank mechanism, follower-cam mechanism, and incomplete gear mechanism. The three mechanisms were compared in mechanical motion pair, motion form, component design, and manufacturing process. The slide-crank mechanism was finally determined. To overcome the strong oscillation of the liquid in the test tube along a single direction, this paper improved the slider-crank mechanism, and whose trajectory was modified into an irregular circle.

scholarly journals INVESTIGATION OF THE DYNAMIC LOAD OF THE JOINT-PLATFORM OF THE JOINT TYPE FROM ROUND PIPES LOADED BY TANKER CONTAINERS

2021 ◽  
Vol 1 (37) ◽  
pp. 31-40
Author(s):  
O. Fomin
Keyword(s):  
Dynamic Load ◽  
Equations Of Motion ◽  
Longitudinal Force ◽  
Railway Transport ◽  
Load Bearing ◽  
Coupling Device ◽  
Mathcad Software ◽  
The Impact ◽  
Bearing Structure ◽  
Resistance Forces

The dynamic loading of the load-bearing structure of the articulated platform car made of round pipes loaded with tank containers was determined. The research was conducted by mathematical modeling. The solution of the equations of motion is carried out in the MathCad software package. It is established that under the influence of a longitudinal force of 2.5 MN on the front stops of the autocoupling, the acceleration on the first section of the platform car is 27.7 m/s² from the side of the force application, and on the second - 24.4 m/s2. To reduce the dynamic load of the load-bearing structure of the platform car, the possibility of using the concept of a harness device on it as an alternative to a typical self-coupling device is considered. The quenching of the kinetic energy of the impact is carried out due to the viscous resistance forces arising in the concept. The proposed implementation allows to reduce the dynamic load of the load-bearing structure of the platform car by 10% compared to the use of a standard self-coupling device. The conducted researches will promote creation of innovative designs of cars-platforms and increase of efficiency of use of railway transport.

scholarly journals Evaluation of welding properties of construction materials using the SEP 1390 tests

2019 ◽  
Vol 91 (1) ◽  
Author(s):  
Ryszard Krawczyk
Keyword(s):  
Dynamic Load ◽  
Analytical Methods ◽  
Construction Materials ◽  
Steel Structures ◽  
Point Of View ◽  
Plastic Properties ◽  
Welded Steel ◽  
Welded Structures ◽  
Materials Used ◽  
Welding Properties

Issues connected with the evaluation of weldability of thick-walled materials used to manufacture welded steel structures were brought forward in the article. Evaluation of weldability determined by analytical methods and verified in a process test according to the guidelines of SEP 1390 was presented. This test is recommended forthe research of thick-walled construction materials, in particular those working under dynamic load. Hardness and metallographic tests were also conducted to assess plastic properties of the materials, very important from the point of view of weldability.The purpose of the topic taken on was the assessment of usefulness of different systems of evaluation of weldability of thick-walled construction materials intended to beused in welded structures.

Development of the Breast Pump with a Baby-Like Peristaltic Motion

2008 ◽  
Vol 20 (3) ◽  
pp. 456-465
Author(s):  
Hiroshi Kobayashi ◽  
◽  
Toshiaki Tsuji ◽  
Yukinari Awano ◽  
Katsumi Mizuno ◽  
...  
Keyword(s):  
Negative Pressure ◽  
Commercial Product ◽  
Peristaltic Motion ◽  
Cam Mechanism ◽  
Breast Pump ◽  
Crank Mechanism ◽  
Working Woman

Because of change in woman’s place in society, the number of working woman is growing and the demand of the breast pump is increasing as well. Commercial product of the breast pump is applying only negative pressure for sucking and many users feel a pain for a long term use. While a baby is using peristaltic motion as the result of tongue and jaw action in addition to suction. In this research, therefore the breast pump with a baby-like motion is developed. In order to realize baby-like peristaltic motion, cam mechanism is applied. Also for producing negative pressure, crank mechanism is utilized. As the result, it turns out that the breast pump developed is realized the same peristaltic motion and suction pattern as a baby.This paper is the full translation from the transactions of JSME Vol.73, No.730.

scholarly journals KINEMATICS OF MECHANISM WITH ROTATING CAM AND FLAT FACE OSCILLATING FOLLOWER. PART II: NUMERICAL AND EXPERIMENTAL METHODS

2016 ◽  
Vol 21 (2) ◽  
Author(s):  
STELIAN ALACI ◽  
FLORINA CARMEN CIORNEI
Keyword(s):  
Numerical Methods ◽  
Analytical Methods ◽  
Experimental Methods ◽  
Point Of View ◽  
Experimental Results ◽  
Experimental Techniques ◽  
Perfect Agreement ◽  
Error Sources ◽  
Cam Mechanism ◽  
Analytical Results

The first part of the work studied the rotating circular cam mechanism with flat face follower using analytical methods. The second part analyses the mechanism from kinematical point of view employing numerical methods and experimental techniques. There is a perfect agreement between numerical and analytical results, but the experimental results are more difficult to evaluate and compare as they are influenced by numerous error sources. The paper presents these inaccuracy sources and the ways to diminish their effects.

scholarly journals Penggambaran Trauma Arima Kousei Dalam Anime Your Lie In April Menggunakan Metode Analitik

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Indah Angelia Kurnia
Keyword(s):  
Analytical Methods ◽  
Psychological Trauma ◽  
Analytic Method ◽  
Main Character ◽  
Literary Works ◽  
Analytic Methods ◽  
The Subject

ABSTRAK Penelitian ini bertujuan untuk mendeskripsikan wujud trauma Arima Kousei dalam anime Your Lie in April karya Naoshi Arakawa dengan menggunakan metode analitik. Subjek penelitian ini adalah anime Your Lie in April karya Naoshi Arakawa. Penelitian difokuskan pada permasalahan yang berkaitan dengan masalah trauma kejiwaan yang dialami tokoh utama dengan menggunakan pendekatan psikologi sastra. Data diperoleh dengan teknik simak dan catat. Data yang menjadi objek penelitian yaitu kutipan dan gambar yang menggambarkan wujud trauma kejiwaan Arima Kousei. Lalu teknik yang digunakan pengarang dalam menggambarkan trauma kejiwaan pada tokoh Arima Kousei yaitu menggunakan metode analitik. Metode analitik adalah metode dimana pengarang menggambarkan watak-watak tokoh dengan mendeskripsikan wataknya secara langsung.. Hasil penelitian menunjukkan bahwa Arima Kousei mengalami trauma kejiwaan karena merasa bersalah atas kematian ibunya. Untuk penelitian selanjutnya, jika ingin meneliti karya sastra dari anime Your Lie in April ada baiknya untuk meneliti mengenai psikologis tokoh lain yang terdapat dalam anime tersebut. Bukan hanya cerita dari tokoh utamanya saja yang menonjol karena trauma yang dialaminya, terdapat cerita dari tokoh lainnya juga yang menyimpan kemungkinan permasalahan menarik untuk dijadikan objek penelitian.   Kata kunci: karya sastra, psikologi sastra, trauma, anime       ABSTRACT   This study aims to describe the form of trauma Arima Kousei in the anime Your Lie in April by Naoshi Arakawa using analytical methods. The subject of this research is the anime Your Lie in April by Naoshi Arakawa. The research is focused on problems related to psychiatric trauma problems experienced by the main character by using a literary psychology approach. Data obtained by listening and note techniques. The data that are the object of research are quotes and pictures that illustrate the form of Arima Kousei's psychiatric trauma. Then the technique used by the author in describing psychiatric trauma to the figure of Arima Kousei is using analytic methods. Analytic method is a method in which the author describes the character's character by describing his character directly. The results of the study indicate that Arima Kousei suffered a psychological trauma because he felt guilty for the death of his mother. For further research, if you want to examine the literary works of the anime Your Lie in April it is better to examine the psychological character of other characters contained in the anime. Not only the story of the main character who stands out because of the trauma he experienced, there are stories of other characters who also save the possibility of interesting problems to be the object of research.   Keywords: literary works, literary psychology, trauma, anime

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