A Status of Shape Optimization in Industrial Car Body Development Aiming at Large Structural Changes

2004 ◽  
Author(s):  
Daniel Heiserer ◽  
A. Irrgang
Keyword(s):  
Shape Optimization ◽  
Structural Changes ◽  
Car Body ◽  
Body Development

CAD/CAM for the New Car Body Development

1975 ◽  
Vol 78 (676) ◽  
pp. 183-189
Author(s):  
Kaneyoshi KUSUNOKI ◽  
Shinji NARUSE
Keyword(s):  
Car Body ◽  
Body Development ◽  
Cad Cam

Enhanced Requirements for Surface Quality of Outer Car Body Shells According to Thermal Manufacturing Processes

2011 ◽  
Vol 473 ◽  
pp. 957-964 ◽  
Author(s):  
Christoph Albiez ◽  
Mathias Liewald ◽  
Andreas Görres ◽  
Jochen Regensburger
Keyword(s):  
Surface Quality ◽  
Material Design ◽  
Shape Deviation ◽  
Complex Deformation ◽  
Influence Of Process Parameters ◽  
Local Shape ◽  
Car Body ◽  
Body Development ◽  
Numerical Simulation Methods

Challenging automotive design in the interaction of modern lightweight strategies to reduce car body weight as well as legislative regulations, impose higher requirements for future car body development. This trend leads to thinner sheet metal blanks and indicates higher requirements for narrow process windows in the entire manufacturing process to ensure the surface quality of outer shell panels. Especially, thermal loads within the coating process might cause local shape deviation in the startup phase of a new product. Further developments in multi-material-design for car body components induce material configurations with a complex deformation behavior due to different thermal expansion characteristics of the materials involved. For these reasons, there is a need to improve the prediction of the surface quality in the early car development process using numerical simulation methods. The influence of process parameters affecting the surface quality is shown and integrated into the process simulation.

LIGHTWEIGHT DOOR RING SOLUTION IN CAR BODY DEVELOPMENT

2017 ◽  
Author(s):  
EVREN ALTINOK ◽  
HAKAN KAYSERİLİ ◽  
AHMET MERT ◽  
SERKAN A. ALTINEL
Keyword(s):  
Car Body ◽  
Body Development ◽  
Ring Solution

Fine Structural Changes in the Microvasculature of the Mouse Pinna: Aging and Radiation Injury

1974 ◽  
Vol 32 ◽  
pp. 54-55
Author(s):  
S. Phyllis Steamer ◽  
Rosemarie L. Devine
Keyword(s):  
Structural Changes ◽  
Radiation Treatment ◽  
Arterial Stenosis ◽  
Ultrastructural Changes ◽  
Vascular Effects ◽  
Microvascular Changes ◽  
Surrounding Connective Tissue ◽  
Fission Neutrons ◽  
Total Body

The importance of radiation damage to the skin and its vasculature was recognized by the early radiologists. In more recent studies, vascular effects were shown to involve the endothelium as well as the surrounding connective tissue. Microvascular changes in the mouse pinna were studied in vivo and recorded photographically over a period of 12-18 months. Radiation treatment at 110 days of age was total body exposure to either 240 rad fission neutrons or 855 rad 60Co gamma rays. After in vivo observations in control and irradiated mice, animals were sacrificed for examination of changes in vascular fine structure. Vessels were selected from regions of specific interest that had been identified on photomicrographs. Prominent ultrastructural changes can be attributed to aging as well as to radiation treatment. Of principal concern were determinations of ultrastructural changes associated with venous dilatations, segmental arterial stenosis and tortuosities of both veins and arteries, effects that had been identified on the basis of light microscopic observations. Tortuosities and irregularly dilated vein segments were related to both aging and radiation changes but arterial stenosis was observed only in irradiated animals.

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