• Korean Journal of Veterinary Research
• /
• v.19 no.1
• /
• pp.69-73
• /
• 1979

In order to detect the influence of overdosed combelen on the Korean native goats, 5mg of combelen per kg of body weight were injected intramusculary. Clinical findings, electrocardiograms and some blood chemical values were determined and the results obtained were as follows: 1. After administration of 5 mg/kg dose of combelen the animals were moderately depressed and often tried to take sitting position but showed moderate response to pinching stimulation of skin. 2. Body temperature and respiratory rate were not suppressed but heart rate were accelerated during sedative stage. 3. During sedation a slight change in the QRS complex and T wave appeared but it was not significant. 4. Hemoglobin concentration showed a tendency to decrease. SGOT activities were markedly increased 24 hours after administration of combelen and BUN values were slightly lowered. Blood sugar values were markedly elevated during sedative stage.

• Proceedings of the KSME Conference
• /
• 2000.04a
• /
• pp.696-701
• /
• 2000

In this study, a mathematical model fur analyzing the shift characteristics is proposed. The proposed model comprises power transmission system and vehicle system, which are coupled. And On-road car test is carried out in order to extract model parameters. Tile model is composed of a detailed powertrain, an engine/AT housing, a simplified suspension system. tires and a vehicle body model. On the test, the vehicle accelerations and pitch ratio are measured by using accelerometers and gyro sensor. The other data, for example speeds, a throttle position and a brake signal, are taken from sensors which already exist in the vehicle. Using natural frequency and characteristic equation, vehicle model parameters are extracted from experimental data.

• Proceedings of the KSME Conference
• /
• 2008.11a
• /
• pp.430-435
• /
• 2008

This research deals with the implementation hydrodynamic (HD) lubrication system with an integration of multibodydynamics (MBD) in order to analyze bearing lubrication characteristics such as pressure distribution and oil film thickness dynamically. The HD solver developed newly will transmit force and torque data to MBD solver, and receive position and velocity data from it continuously. After an analysis, we will verify the result with existing commercial software. Moreover, other functions like adjusting size of mesh grid, setting oil hole & groove effects, and consideration of thrust force will be introduced.

• Transactions of the Korean Society of Mechanical Engineers
• /
• v.6 no.3
• /
• pp.204-210
• /
• 1982

The mechanical behaviors of an elastic body containing another materials are studied with the statistical method since they are generally distributed at random in size, orientation, and position. As the basis of this research, the size, the shape, and the ratio of volume for another material assumed to be constant, and only the positions of another material are changed randomly. The stress intensity factor, the compliance, and the modulus of elasticity are investigated in two-dimensional state by using the Monte Carlo Method and the Finite Element Method. The methodology of the simulation analysis for the mechanical behavior of such material is also proposed.

• Journal of the Korean Society for Precision Engineering
• /
• v.23 no.7 s.184
• /
• pp.159-167
• /
• 2006

The impact time history of human body with K2 rifle on stand shooting posture is analyzed and compared with experimental results. Analysis model is Korean 50% tile of twenties and height, weight is 174 cm, 62 kgf respectively. The muscle and bone human model of Korean man's twenties 50% tile is applied. ADAMS program is used for kinematic analysis and human model is developed by Life Mod program. The effect of the ground support condition, grip position and human weight factor are studied. Maximum impact force of shoulder is 784 N. The horizontal displacement of K2 rifle muzzle is 2.9 cm.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.26 no.11
• /
• pp.1514-1526
• /
• 2002

The objective of this study is to ascertain the major considerations when designing slacks for automobile drivers reflecting the elasticity of the human body posture. The scope of this study aims to find out the causes of discomfort in driving positions based on the results of a questionnaire survey and body measurements fur slacks, as well testing four types of experimental slacks for comfort and fitness when sitting on a driver's seat and in the standing position. Based on the results, a slacks design for drivers with improved comfort and fitness is suggested.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.21 no.7
• /
• pp.1227-1235
• /
• 1997

The purpose of this study was to classify the somatotype based on the side view and to analyze the characteristics of each somatotype. In order to reduce the burden of stocks and increase clothing fitness, systematic information on typical body sizes and somatotypes is essential. The subjects were 206 unmarried women aged from 19-29. Data were collected through anthropometry and photometry and analyzed by factor analysis, cluster analysis and analysis of variance. As the result of factor analysis for the classification of somatotypes, 8 factors which explain 74.7% of variance were extracted from 35 photometric and 17 anthrometric data. Using factor scores cluster analysis was carried out and the subjects were classified into 4 cluster.Each cluster was classified as bending type, swayback, turning over type and straight type accordding to its position to the relativeplumb line and their side view contour.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.12 no.5
• /
• pp.85-93
• /
• 2004

Electric vehicle body has to be subjected to uniform load and requires auxiliary equipment such as air pipe and electric wire pipe. Especially, the cross beam supports the weight of passenger and electrical equipments. This need to use adaptive design in initial design stage to gain economy through interchangeability between many kinds of components. This study performs the topology optimization by the concept of homogenization based on optimality criteria method which is efficient for the problem with a number of boundary condition and design variable. Therefore this provides the method to determine the optimum position and the shape of circular hole in the cross beam and then can achieve the weight minimization of electric vehicle body.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.8 no.3
• /
• pp.119-129
• /
• 2000

In order to show the efficiency and accuracy of an expert drawbead model, finite element simulations of auto-body panel stampings are carried out. For numerical modeling of the drawbead of a panel die, the drawbead restraining force and bead-exit thinning calculated by the expert model are imposed to a node nearest to the drawbead position as a boundary condition, Finite element simulations show that the expert model provides the accurate solution, guarantees the stable convergence, and has the merit in the computation time.

• International Journal of Automotive Technology
• /
• v.7 no.2
• /
• pp.173-177
• /
• 2006

A noise transfer function(NTF) is the frequency response function between an input force applied to an exterior point of a vehicle body and the resultant interior sound pressure usually measured at the driver's ear position. It represents the measure of noise sensitivity for the output force transmitted to the joints between the body and chassis. The principle of vibro-acoustic reciprocity is often utilized in the measurement of NTF. One difficulty in using the volume source is that most of the previously proposed methods require the knowledge of the volume velocity of the acoustic source in advance. A new method proposed in the present work does not require any calculation related with the volume velocity of the acoustic source, but still yields even more accurate results both in the amplitude and phase of the NTF. In the present work, the new method is applied to obtain NTF data for a midsize sedan.