Week 9 - Project - Master Section Development
Project - Master Section Development
Aim: Master Section Development
Pillars In Cars
Pillars are the vertical or nearly vertical supports of a car's window area or greenhouse—designated respectively as the A, B, C, or (in larger cars) D-pillar, moving from front to rear, in profile view.
The consistent alphabetical designation of a car's pillars provides a common reference for design discussion and critical communication. As an example, rescue teams employ pillar nomenclature to facilitate communication when cutting wrecked vehicles, as when using the jaws of life.
Design
In the case of the B (or center) pillar on four-door sedans, the pillar is typically a closed steel structure welded at the bottom to the car's rocker panel and floorpan, as well as on the top to the roof rail or panel. This pillar provides structural support for the vehicle's roof panel and is designed for latching the front door and mounting the hinges for the rear doors.
As the most costly body components to develop or re-tool, a vehicle's roof and door design are a major factor in meeting safety and crash standards. Some designs employ slimmer, chamfered windscreen pillars, A-pillars, to help improve driver vision (thus reducing blind spots) through the use of stronger alloy steel in these components. As "perhaps the most complex of all the structures on the vehicle", the center or B-pillar may be a multi-layered assembly of various lengths and strengths.
Closed vehicles without a B-pillar are widely called hardtops and have been available in two or four-door body styles, in sedans, coupes, and wagons. Designs without a center or "B" pillar for roof support behind the front doors offer increased occupant visibility, while in turn requiring underbody strengthening to maintain structural rigidity. In the early 1970s, General Motors broadened their definition of "hardtop" to include models with a B-pillar although: "up to then, everybody thought a hardtop was a car without a center pillar.
1. Creation of Tooling Axis
2: Procedure for creating B Surface
1. Offset the Surface about 2mm
Create a plane using three points on mastersection
Tangentially extract the boundary using multiple extracts
Create flange and trim with class a surface
Create Flange 1
Trim the flange with class A surface
Create the Same flange on B Surface
Procedure for creating C Surface
for creating the side face make sure sweep angle should be outside
Now its time to trim this with Both Class A And B for Class C Creation
Creation of Dog House and 4 Way Locator
creation of 4 Way locator
provide chamfer of 5mm to 45deg
and a draft of 0.5 deg
After creating Dog House and Locator one Side make asymmetry on another side on the master section
Creation of Ribs
Draw the sketch of rib with 50mm distance between each ribs
extract the all individual line from sketch
Extrude all ribs
Thicken all ribs one by one
provide a draft angle of 0.5 deg
Split all the Ribs with offset surface
Split all ribs with class A surface
Trim all ribs with offset surface
Draft Analysis
Draft Analysis on Dog House and 4 Way Locator
draft Analysis on Dog house using Lifter Axis
