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Software Products - MECHMACS

MECHMACS - Mechanical Blockset for MATLAB/Simulink

MECHMACS includes five sublibraries (elastic blocks, clutches, engines, gear boxes and special blocks) and an example library.

Elastic Blocks

All elastic blocks consist of a discrete mass (filled black circle) at one end which is connected to one or two massless spring(s) which model(s) the stiffness. The state of motion of the mass results from a combination of stiffness force, implied displacement, implied forces and from damping and friction forces.

Elasics

Clutches

These clutch blocks have no stiffness. Motion of the mass results from implied displacement, implied forces and block friction forces. The clutch surfaces stick if the friction forces are greater than the reaction forces and if the relative velocity of the friction surfaces is small.

Clutches

Engines

Five engine blocks are available for modeling flexibility. They imply a force or torque to accelerate a mass or moment of inertia. Block DCE is controlled by a voltage and LFE, MCE and SFE by a pedal position.

Engines

Gear boxes

Blocks RGB, RTB, and RCB are rigid gear box models, DGB with DGL and DGR model a differential gear box and CVT a time-dependent gear ratio. The gear box blocks can be used to model transition from rotation to translation and vice versa.

Gear boxes

Special Blocks

These blocks were included for ease of modeling in special situations. SDS may be used to couple two systems with internal states like two SMD or SMF blocks. VSM is similar to SMD but allows tables for stiffness and damping characteristics.

Elasics


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