Diagrams


To the detail opinion click into the desired diagram

 

Modification of the acceleration curve:
Analysis of the calculated valve lift:

Beschleunigungsverlauf

Ventilhubkurve

 

MRA

 

< Multi resolution analysis to modify fouriercoefficientes
Distance Piston - Valve:
Valve timing diagram

Kolben<->Ventil

Steuerdiagramm
Finger follower valve train:
Distance inertia - spring force:

Ventiltrieb

Feder<->Massenkraft


Hertzian stresses in range of rpm:

Stress


Torque in range of rpm:

Torque

Data export cam profile:
Distance inertia - spring force (Flat tappet):

Exportformate

 

Ventiltrieb
Pushrod valve train:
Data preparation for grinding and measurement:

Stösselstange+Rollenabnehmer

 

Datenaufbereitung
interface to cad systems via dxf:
RecurDyn multi-body simulation system: The windows for working on the Ventitriebe possess an interface to the simulation systems of ADAM and RecurDyn. The simulation system is started and the appropriate valve impulse as model is developed. The interface offers the possibility also the entire cylinder head with two complete cam shafts and different cam profiles to generate.

Interface

 

MSC-ADAMS Simulation system.
Finger follower:
Postprocessing simulated valve train:

http://www.mscsoftware.com/products/products_detail.cfm?PI=467
 
Valve train variable valve lift (System: Kaiserslautern University)
 
   

Collision consideration valve – valve , valve – piston (animated)

Distribution of hertzian stresses on cam profile in rpm range


Distribution of hertzian stresses on follower in rpm range

Distribution of oil film thickness on cam profile in rpm range

Distribution of oil film thickness on follower in rpm range

GUI of valve spring design tool

Modification of spring skeleton curve (spline based)

Wire profile design tool (multiarc, spline based)

The calculated valve spring in her form (beehive)

GUI of optimization tool (SQP- solver)

Pushrod valvetrain (OpenGL)

Calculation of the event length (duration) at different valve lift , cam lift